| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 358504000 | Measuring, testing, and calibrating | 74 |
| 20080204829 | Hard copy out of gamut detection - A method for representing out of gamut colors in a original printed image for an output device includes sampling the original printed image to identify colors for the original image, comparing the identified colors of the sampled original printed image with an output profile of an output device to identify out of gamut colors for the output device, and displaying a preview of the original printed image in which out of gamut colors for the output device are identified. | 08-28-2008 |
| 20080252948 | UNIT FOR MEASURING COLOR AND RECORDING APPARATUS - A color measuring unit that is easily mounted in a recording apparatus and measures with high accuracy. All of the elements of the color measuring are integrated into a single unit, such that the color measuring can be used independently in a separated form. | 10-16-2008 |
| 20090059321 | System and Method for Generating Color-Correct Scanned Image Files in a Network Environment - Present systems and methods provide for the creation of scanned image files accurately which accurate represent the colors of scanned color image prints. A scanner can be calibrated using a calibration server which receives a scanned calibration target image file and compares color values data therein with known reference values to produce a Correction. The server subsequently applies to the correction to other scanned image files it receives from the scanner to generated color correct scanned image files. | 03-05-2009 |
| 20090059322 | Gray Balance Calibration of an Imaging System - One aspect of the disclosure is directed to a calibration system. The calibration system includes a given imaging device including a predetermined print engine capable of being calibrated and a calibration sheet. The calibration sheet includes at least one visible calibration reference region including a given mix of one or more pre-selected reference colorants printed in the at least one calibration reference region on the calibration sheet. The one or more pre-selected reference colorants have been previously printed on the printable calibration sheet using a different imaging device that is different than the given imaging device and that has the same print engine as the given imaging device. The calibration sheet includes one or more freshly printable target regions on the calibration sheet. The given imaging device is configured to enter into the calibration mode, wherein the given imaging device, when in the calibration mode, is configured to freshly print a mix of colorants corresponding to the one or more pre-selected reference colorants onto at least one of the one or more target regions. | 03-05-2009 |
| 20090080040 | Systems and Methods for Improving Image Quality in Image Forming Devices - An image forming device may select from among a plurality of rendering parameters to include selectable halftone frequency candidates automatically based on an internal determination regarding an operating condition of the device to improve image quality for formed images. As a time varying function of the status and/or condition of the components and/or consumables employed in the image forming device, a capability is provided for the device to independently determine an optimal individual or set of rendering parameters to be employed based on a monitored device status. Available monitoring data for a current overall condition of the image forming device, to include monitoring a condition of the components and/or the consumables within the device, is used to allow the device to internally perform automatic adjustment of one or more image rendering parameters, including automatically implementing an optimal halftone frequency election scheme. | 03-26-2009 |
| 20090086292 | L*a*b* SCANNING USING RGB-CLEAR - Systems and methods are described that facilitate reducing metamerism in a scanner or printer system by evaluating and manipulating unfiltered clear channel information. Using a four channel model to predict CIE XYZ tristimulus values from RGB and clear, a linear model is generated based on a polynomial matrix conversion. For example, one such model has coefficients weighting 1, R, G, B, W, R | 04-02-2009 |
| 20090091808 | Method for Dynamically Compensating for a Faulty Pixel in a Scan Line Generated by a Scanner - A method for dynamically compensating for a faulty pixel in a scan line of a scanner having an image sensor with a plurality of sensor pixels includes generating digitized scan data; processing the digitized scan data to compensate for any faulty pixels of the plurality of sensor pixels to form compensated scan data; processing the compensated scan data to apply offset and gain correction to the compensated scan data to form calibrated scan data; processing the calibrated scan data to adjust the calibrated scan data to compensate for human visual perception to form final scan data; and storing the final scan data in a scanner image memory. | 04-09-2009 |
| 20090109505 | Method and System for Improved Sensing with Robustness to Banding for Rendering Devices - For a selected class of functions, which describe most typical banding variations, the average response can be found by sampling at only 2 | 04-30-2009 |
| 20090122368 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus including: an image forming section which forms an image on a photosensitive drum based on a reference signal which being an image write control signal of a predetermined cycle; a measuring section which detects a rotational velocity of the photosensitive drum and measures a velocity fluctuation distribution in time period of one rotation of the drum; a storage section which stores a correction value as a correction data table for each type of recording sheets, wherein the correction value is obtained based on the velocity fluctuation distribution; and a control section which corrects the cycle of the reference signal by referring the correction data table corresponding to a selected type of recording sheets, and controls the image forming section to form the image on the photosensitive drum based on the reference signal with the corrected cycle. | 05-14-2009 |
| 20090128867 | CALIBRATION TECHNIQUES FOR IMAGING DEVICES - The invention is directed to various calibration techniques for calibrating an imagining device such as a display device, a printer, or a scanner. The techniques may involve characterizing the imaging device with a device model such that an average error between expected outputs determined from the device model and measured outputs of the imaging device is on the order of an expected error, and adjusting image rendering on the imaging device to achieve a target behavior. The invention can achieve a balance between analytical behavior of the imaging device and measured output. In this manner, adjustments to image rendering may be more likely to improve color accuracy and less likely to overcompensate for errors that are expected. | 05-21-2009 |
| 20090153921 | Image forming device and image forming method - The present invention provides an image forming device using a toner that maintains a color-generation state or non-color-generation state owing to color-generation information provided by light, comprising: an image forming unit comprising a developing unit including a photoreceptor and the toner that forms a toner image, a color-generation information providing unit that, based on image data, provides the toner with color-generation information by exposing the toner image to light, a transfer unit, a fixing unit, and a color-generating unit that allows respective toner to generate the color, a toner temperature regulating unit, and a control unit that controls the toner temperature regulating unit so the temperature of the toner is within a predetermined range, and an image forming method using the same. | 06-18-2009 |
| 20090201562 | Method of Determining Number of Patches - A test chart used for color calibration includes: the number of patches of a first color; and the number of patches of a second color. The number of patches of the first color is determined on the basis of the degree of variation in the colorimetric value of the first color in a color space on a medium, and the number of patches of the second color is determined on the basis of the degree of variation in the colorimetric value of the second color in the color space on the medium. | 08-13-2009 |
| 20090244660 | Coloring image generating apparatus and coloring image generating method - A coloring image generating apparatus includes: an acquiring unit that acquires an image; an edge intensity calculating unit that calculates an edge intensity frequency distribution of the image; a threshold value setting unit that sets a threshold value for dividing a coloring image into a contour portion and a blank portion according to distribution characteristics of the edge intensity frequency distribution; and a generating unit that discriminates the contour portion from the blank portion in the image on the basis of the threshold value and generates a coloring image. | 10-01-2009 |
| 20090296171 | CONTROL BASED ITERATIVE PROFILING METHODS - A method and system of color management for an image marking device. A sensor measures printed hardcopy colors. A first gain, computed by a linear controller based on a linear model, is scheduled for each color node of a sampled color space. For each node where a convergence error exceeds a threshold, a second gain is scheduled by a nonlinear controller. The second gain scheduling includes initializing operational parameters, and performing an iterative procedure. The iterative procedure includes computing gain matrices over a defined projection horizon, evaluating a cost function for each gain matrix, determining the cost function, scheduling a new gain based on selecting a gain matrix having the minimum value of the cost function, and computing new CMYK values based on the new gain. A multidimensional LUT based on the scheduled gain matrices is generated and stored in memory, and a hardcopy output image is generated based on the stored multidimensional LUT. | 12-03-2009 |
| 20100014131 | IMAGE PROCESSING APPARATUS AND METHOD - An image processing method and an image processing apparatus to calibrate a scan image include selecting any one of a plurality of colors having different gray reproduction characteristics, and calibrating the scan image based on a color table corresponding to the selected color among a plurality of color tables. | 01-21-2010 |
| 20100067072 | THREE-DIMENSIONAL CALIBRATION USING ORIENTATION AND POSITION SENSITIVE CALIBRATION PATTERN - Systems and methods using an orientation/position-sensitive calibration pattern for three-dimensional calibration of an imaging system, such as one used in a process for scanning documents are disclosed. The method generally includes positioning the pattern on a support, capturing images using cameras to be calibrated, each image containing at least a unique orientation and position sensitive sub-area of the pattern, determining a set of coordinate pairs of corresponding points in the image and the pattern for each image utilizing image data and pattern information, and performing optimization utilizing the sets of coordinate pairs to calibrate relative position, orientation, zoom, and/or lens distortion, etc. of each camera so as to construct a three-dimensional camera calibration model. The pattern is generally comprised of overlapping sub-areas of a minimum portion of the pattern. | 03-18-2010 |
| 20100079828 | METHOD FOR OPTIMIZING DISPLAY PROFILES TO SIMULATE THE METAMERIC EFFECTS OF CUSTOM ILLUMINATION - A method for compensating for effects of illumination when comparing soft proofs to hard copy proofs viewed under non-standard illumination comprises obtaining ( | 04-01-2010 |
| 20100079829 | METHOD FOR OPTIMIZING DISPLAY PROFILES - A method for compensating for effects of illumination when comparing soft proofs to hard copy proofs viewed under non-standard illumination comprises adjusting a standard illumination display profile until estimates of device independent colors produced by the display based on the adjusted profile match the colors corresponding to the non-standard illumination within a predefined tolerance. | 04-01-2010 |
| 20100097669 | MATCHING PRINTER CUSTOM TARGET COLORS USING IN-LINE SPECTROPHOTOMETER - A method and system scan an item having at least one color feature using an in-line spectrophotometer of a printing apparatus. The scanning identifies at least one “item color” within the color feature. The item color is stored as at least one custom target color in a computer-readable storage medium of the printing apparatus. The custom target color can be stored with the print job for future reference. At least one print job is processed through a printing engine of the printing apparatus to output at least one printed sheet. During the processing of the print job, the printed sheet is scanned with the in-line spectrophotometer to identify at least one printed color on the printed sheet and the printed color is compared to the custom target color to identify any color difference. The printing characteristics of the printing apparatus are adjusted to reduce the color difference. | 04-22-2010 |
| 20100134858 | IMAGE SCANNING DEVICE AND CALIBRATION METHOD THEREOF - Ina calibration method of an image scanning device, an original for use calibration including a plurality of patches each having a different tone is scanned, scanned tone values of the patches of the original are acquired with respect to each of a plurality of color components, a curve function is acquired with respect to each of the plurality of color components based on the scanned tone values and target tone values of the patches predetermined with respect to each of the plurality of color components, each curve function approximating a relationship between an input defined as the scanned tone value and an output defined as the target tone value, and the curve function is acquired with respect to each of the plurality of color components such that input value intercepts, each being defined as an upper limit of a range of the input value in which range the output value is maintained at zero, are equal among the plurality of color components. | 06-03-2010 |
| 20100177365 | IMAGE FORMING APPARATUS AND IMAGE QUALITY CALIBRATION METHOD THEREOF - An image forming apparatus and an image quality calibration method in the image forming apparatus, the image forming apparatus including a printing unit to print a calibration chart in one mode selected from a plurality of resolution modes, a scanning unit to scan the printed calibration chart, and a calibrating unit to calibrate an image using color values of the scanned calibration chart according to the plurality of resolution modes. | 07-15-2010 |
| 20100188714 | Image inspection system, image inspection method, and computer-readable medium storing an image inspection program - An image inspection system inspects quality of image prepared from source image data by an image forming apparatus. The image inspection system includes a scanner, a storage unit, an inspection color designating unit, an inspection area determination unit, a reference color extraction unit, an inspection color extraction unit, and an image quality judgment unit. The scanner scans reference and inspection document to prepare reference and inspection image data. The inspection color designating unit designates an inspection color. The inspection area determination unit extracts an inspection area having the inspection color from the source image data. The reference color extraction unit extracts an image having first-extracted-color from the reference image data. The inspection color extraction unit extracts an image having a second-extracted-color from the inspection image data. The image quality judgment unit compares the first and second-extracted-colors to determine image quality of the inspection document image. | 07-29-2010 |
| 20100296139 | Image forming apparatus and image forming method - An image forming apparatus includes an image forming unit that forms an image using an electrophotographic process; a color measuring unit that measures a color of the image; a measured-value acquiring unit that acquires a measured value that is measured by the color measuring unit; and a set-value deciding unit that decides a set value related to formation of the image based on a difference between the measured value and a preset target value, wherein the set-value deciding unit determines the set value so that the image approaches a reference value in a period from a current state of the image to desired state of the image while optimizing a constraint evaluation function related to a constraint condition for the formation of the image by using an estimation equation for approximating time-series variation in a state of the image. | 11-25-2010 |
| 20110007371 | MEASURING SEPARATION OF PATTERNS, AND USE THEREOF FOR DETERMINING PRINTER CHARACTERISTICS - Disclosed are methods ( | 01-13-2011 |
| 20110102867 | IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM ON WHICH IMAGE PROCESSING PROGRAM IS RECORDED - An image processing apparatus includes a two color process section and a color material usage estimation and calculation section. The two color process section generates, based on input image data of RGB inputted by reading an original document, image data of CMY for outputting a two-color image. The color material usage estimation and calculation section calculates, based on the image data of CMY generated by the two color process section, a usage of color materials used when the two-color image is outputted and generates information concerning the usage of color materials from a result of the calculation. The color material usage estimation and calculation section outputs the generated information concerning the usage of color materials to an image display device. | 05-05-2011 |
| 20110164293 | Image control device for printer and method of compensating for light amount drift of photosensor used in the image control device - A method of compensating for a light amount drift of a photosensor used in an image control device, wherein the photosensor includes a light emitting portion and a light receiving portion which projects light onto an image control mark formed on an intermediate transfer medium of a printer and detects an optical signal reflected by the image control mark, thereby controlling the quality of an image. In the compensation method, the light amount drift is calculated by projecting light on the intermediate transfer medium, detecting an amount of light reflected by the intermediate transfer medium, and comparing the detected light amount with a pre-set reference light amount. The detected light amount is then corrected to be substantially equal to the reference light amount. | 07-07-2011 |
| 20110235141 | Spot Color Matching Mechanism - An apparatus is disclosed. The apparatus includes a color image recording device to measure a spot color on a medium and a color matching module to determine a perceptual color difference between the measured spot color and a reproduction color as a function of color values in a color space and to optimize the function to establish a minima. | 09-29-2011 |
| 20110242628 | IMAGE READING APPARATUS AND IMAGE READING METHOD - An image reading apparatus capable of accurately detecting abnormal pixels caused by a contaminant such as dirt, stain, or flaw on a moving document reading glass being read. An image processing unit of the image reading apparatus performs a first abnormal pixel detection process to detect pixel signals representing abnormal pixels and output from image sensors for respective colors when a reading unit reads a guide plate in a main scanning direction in a state before an original passes through a moving document reading position, performs a second abnormal pixel detection process to detect pixel signals representing abnormal pixels and output from the image sensors when an original being conveyed is read by the reading unit in the main scanning direction, and detects a main scanning direction of abnormal pixels based on results of these detection processes. | 10-06-2011 |
| 20110299143 | COLOR TRANSFORM INSENSITIVE TO PROCESS VARIABILITY - A method for determining a blended color transform for use in producing printed colors on a color printer having at least four device color channels, comprising: forming first and second color transforms, wherein the first color transform produces printed colors that have a reduced sensitivity to color printer process variations in at least a first region of color space that includes a near-neutral color region, and wherein the second color transform produces printed colors that have a reduced image noise visibility in at least a second region of color space; defining a blending function which computes weighting values for the first and second color transforms as a function of input color values; and using a processor to determine the blended color transform by blending the first color transform and the second color transform, responsive to the blending function. | 12-08-2011 |
| 20110317231 | IMAGE PROCESSING APPARATUS AND METHOD FOR DISCRIMINATING WHETHER DOCUMENT IS COLOR DOCUMENT OR BLACK AND WHITE DOCUMENT, IMAGE FORMING APPARATUS AND FACSIMILE MACHINE INCLUDING THE IMAGE PROCESSING APPARATUS AND A COMPUTER READABLE RECORDING MEDIUM STORING IMAGE PROCESSING PROGRAM - An image processing apparatus includes a document conveying unit, an image reading unit, a gradient calculating unit, a gradient comparing unit and a document discriminating unit. The image reading unit scans a document conveyed by the document conveying unit in a scanning direction orthogonal to a conveying direction and detects pixel values of color components of each pixel. The gradient calculating unit calculates a gradient of the pixel value of each color component in the conveying direction for each pixel based on the detected pixel values. The gradient comparing unit compares differences of gradients among color components for each pixel and extracts the pixel where the graduent difference is below a threshold value. The document discriminating unit discriminates whether each pixel is color or black-and-white based on pixel values using discrimination criteria different for the specific pixels extracted by the gradient comparing unit and other pixels. | 12-29-2011 |
| 20120033272 | Calibration Mechanism And Scanning Device Has The Calibration Mechanism - A calibration mechanism is positioned in a scanning device. The scanning device includes a scanning module having a transparent plate for being passed through a scanned light beam and creating a scanned color. The calibration mechanism includes a processor means and a display means. The display means is positioned to face the transparent plate of the scanning module and controlled by the processor means to alter the scanned color to a display color. Since, the calibration mechanism is capable altering the background color. Furthermore, the calibration mechanism has a simple structure and a compact size for conveniently positioned in a compact scanning device. | 02-09-2012 |
| 20120038957 | PRINT CALIBRATION PROCESSING APPARATUS, IMAGE FORMING APPARATUS, PRINT CALIBRATION PROCESSING METHOD AND IMAGE FORMING METHOD - A print calibration processing apparatus includes a test image output section configured to outputs plural patches for gradation characteristic generation to an image forming section, a gradation characteristic data generation section configured to use, as a read object, a test chart obtained by printing the test images on both the sides of the print sheet by the image forming section while shifting print positions of the test images in a front and back direction, reads the images on a first and second side of the test chart, and generates gradation characteristic data of front test images on the first side and the second side and gradation characteristic data of show-through test images on the first and second side, a correction data generation section configured to determine a correction value of maximum gradation based on gradation characteristics of the front and the show-through test images, and a correction section configured to correct gradation of image data. | 02-16-2012 |
| 20120069410 | IMAGE READING APPARATUS, IMAGE FORMING APPARATUS, METHOD OF READING IMAGE, AND RECORDING MEDIUM FOR READING ORIGINAL-DOCUMENT IMAGE AND GENERATING IMAGE DATA OF THE ORIGINAL-DOCUMENT IMAGE - An image reading apparatus reads an original-document image and generates image data of the original-document image, and includes an image reading unit, a security pattern detection unit, and a main control unit. The image reading unit reads the original-document image and sequentially generates the image data of the original-document image as a plurality of pieces of band data. The security pattern detection unit performs security pattern detection processing on band data of a single band to detect a portion or an entirety of a security pattern included therein. The main control unit causes the security pattern detection unit to perform the security pattern detection processing on band data of a single band having the lowest background color density and not on band data of a single band having the greatest background color density, among the plurality of pieces of band data. | 03-22-2012 |
| 20120069411 | IMAGE CAPTURING DEVICE AND RECORDING APPARATUS - An image capturing device includes: a housing; a reference pattern used for color measurement and arranged in the housing; an image capturing element that captures an image of the reference pattern in a first area and an image of an object in a second area of the image capturing area; an image forming element causing the image of the reference pattern and the image of the object to be formed on the image capturing element by being arranged on a first optical path between the image capturing element and the reference pattern and a second optical path between the image capturing element and the object; and an optical member that guides any one of the images of the reference pattern and the object formed by the image forming element so that the images are to be formed on an element surface of the image capturing element. | 03-22-2012 |
| 20120274997 | PROCESS DIRECTION STREAK SOURCE DIAGNOSIS IN PRINTERS - Methods and systems print a multi-color test pattern using a printing device to create a printed test pattern when the printing device is producing a printing defect. The methods and systems scan the printed test pattern to produce a scanned image and decompose the scanned image into color blocks using the computerized device. The methods and systems create intensity profiles of the color blocks using the computerized device and compare at least two of the intensity profiles of different colors to determine whether the intensity profiles indicate correlated printing defects using the computerized device. The methods and systems indicate, through the computerized device, whether a potential defect within a common printing element of the printing device or is located within one or more of the color printing elements of the printing device, depending upon whether the intensity profiles have correlated printing defects. | 11-01-2012 |
| 20130003146 | COLOR CALIBRATION METHOD AND IMAGE PROCESSING DEVICE USING THE SAME - A color calibration method and an image processing device using the same are provided. The method includes: obtaining a first image of a calibration card having color blocks, each of which corresponds to a standard value; obtaining first sensing values according to the first image, wherein each of the first sensing values corresponds to one of the standard values; generating a calibration table according to the first sensing values and the standard values; determining if a recursive condition is satisfied. The method also includes: obtaining a second image of the calibration card if the recursive condition is not satisfied; obtaining second sensing values according to the second image; adjusting the second sensing values according to the calibration table to generate third sensing values; updating the calibration table according to the third sensing values and the standard values until the recursive condition is satisfied. Accordingly, the calibration table is generated automatically. | 01-03-2013 |
| 20130114118 | CALIBRATION OF IMAGING DEVICES FOR MINIMIZING INDIVIDUAL COLOR REPRODUCING ERRORS OF SUCH DEVICES - The present invention relates to a calibration target containing calibration data, the calibration data containing at least one color, for calibrating an imaging device for minimizing an individual color reproducing error of such a device. The inventive target comprises a pointer, preferably comprising a barcode, whereby the pointer contains information about reference data associated to the calibration target, the reference data containing information about the at least one color. The present invention further relates to methods and systems using such a target. | 05-09-2013 |
| 20130141767 | Print Verification Database Mechanism - A method is disclosed. The method includes reading image data from a print medium and performing image processing on the image data by querying a database to verify that each object to be included on the print medium appears on the medium in a manner in which it is supposed to appear. | 06-06-2013 |
| 20130222868 | IMAGE FORMING APPARATUS WITH PLURALITY OF OPTICAL SCANNING DEVICES - An image forming apparatus includes a plurality of optical scanning devices, a job receiver, a job executor, an image discriminator for discriminating whether a formation-target image included in an image forming job is a single-color image or a multi-color image, a first condition judger, a second condition judger and a temperature adjuster. In the case of forming a single-color image, the temperature adjuster drives motors of all the optical scanning devices if a predetermined first condition and a predetermined second condition are satisfied and drives the motor of one optical scanning device and does not drive the motors of the other optical scanning devices but the one optical scanning device if the first condition is satisfied, but the second condition is not satisfied. | 08-29-2013 |
| 20130222869 | IMAGE FORMING APPARATUS WITH PLURALITY OF OPTICAL SCANNING DEVICES - An image forming apparatus includes a plurality of optical scanning devices, a mode receiver, a temperature condition judger and a temperature adjuster. In the case of forming an image using one optical scanning device, the temperature adjuster drives motors of unused optical scanning devices at a first rotation speed if a predetermined temperature condition is satisfied and drives the motors of the unused optical scanning devices at a second rotation speed slower than the first rotation speed if image formation is finished during the drive at the first rotation speed. | 08-29-2013 |
| 20130222870 | IMAGE FORMING APPARATUS WITH PLURALITY OF OPTICAL SCANNING DEVICES - An image forming apparatus includes a plurality of optical scanning devices, a job receiver, a job executor, an image discriminator, a temperature condition judger and a temperature adjuster. When a formation-target image is a single-color image and an image to be formed next is a multi-color image, the temperature adjuster drives a motor of one optical scanning device at a second rotating speed slower than a rotating speed during an image forming operation and drives motors of unused optical scanning devices at a third rotating speed faster than the second rotating speed if a temperature condition is satisfied upon the completion of an image forming operation of the single-color image. | 08-29-2013 |
| 20130242360 | IMAGE EVALUATION APPARATUS AND METHOD, IMAGE FORMING SYSTEM, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - An image evaluation apparatus includes a reading unit that includes a monochrome detection unit reading, in a focused state, an image formed on a recording material by an image forming apparatus that represents grayscale of the image by forming dots on the recording material, and a color detection unit reading the image in a defocused state; an image information obtaining unit that obtains image information for the image forming apparatus to form the image; a computing unit that computes a luminance and a chroma of an image supposed to be formed on the recording material by the image forming apparatus from the obtained image information; a comparing unit that compares a derived luminance with the computed luminance, and compares a derived chroma with the computed chroma; and an image evaluation unit that evaluates the image formed by the image forming apparatus, on the basis of results of comparison. | 09-19-2013 |
| 20130242361 | IMAGE CAPTURING DEVICE, COLOR MEASURING DEVICE, COLOR MEASURING SYSTEM, IMAGE FORMING APPARATUS, AND COLOR MEASURING METHOD - An image capturing device includes a sensor unit that captures a predetermined range including a subject; a reference chart that is captured by the sensor unit together with the subject; an illumination light source that illuminates the subject and the reference chart; a lens member including one or more lenses arranged in an optical path of reflected light extending from the subject and the reference chart to the sensor unit; and a lens moving unit that moves at least one lens of the lens member so as to change a position thereof in a direction along the optical path. | 09-19-2013 |
| 20130250377 | IMAGE READING DEVICE, APPARATUS INCLUDING IMAGE READING DEVICE, IMAGE READING CONTROLLING METHOD, AND RECORDING MEDIUM STORING IMAGE READING CONTROL PROGRAM - An image reading device includes an imaging device including a plurality of imaging elements, and a calibration plate having a surface on which a plurality of color patches is formed, and a processor that instructs the imaging device to read the plurality of color patches while changing a relative position between the plurality of color patches and the plurality of imaging elements, to output reading results of the plurality of color patches. | 09-26-2013 |
| 20130250378 | IMAGE READING DEVICE, APPARATUS INCLUDING IMAGE READING DEVICE, IMAGE READING CONTROLLING METHOD, AND RECORDING MEDIUM STORING IMAGE READING CONTROL PROGRAM - An image reading device includes an imaging device including a plurality of imaging elements, a color measuring unit that detects color of an object at a color measurement area, a calibration plate having a surface on which a plurality of color patches is formed, and a processor that causes the color measuring unit to read the plurality of color patches while changing a relative position between the plurality of color patches and the plurality of imaging elements to output color measurement results of the plurality of color patches, and generates a set of reference values for the plurality of color patches based on the color measurement results of the plurality of colors. The set of reference values are compared with the reading results of the plurality of color patches to generate a set of correction values for correcting the reading results of the plurality of color patches. | 09-26-2013 |
| 20130335792 | DETECTING COMMON ERRORS IN REPEATED SCAN WORKFLOWS BY USE OF JOB PROFILE METRICS - Methods perform at least two different segments of a scan job by sequentially scanning the different segments using an optical scanner. Each of the different segments is scanned with the optical scanner manually set to different settings. The methods automatically combine the different settings to produce a recurring scan workflow. The recurring scan workflow includes such different settings of the different segments and information of the number of pages scanned in each of the different segments. Further, such methods perform at least one later scan job having later segments corresponding to the different segments of the original scan job after creating the recurring scan workflow. During the later scan job the computerized device automatically changes settings of the optical scanner between the later segments, without requiring the user to manually change the different settings between the later segments. | 12-19-2013 |
| 20140002872 | IMAGE ENHANCEMENT METHODS | 01-02-2014 |
| 20140063576 | IMAGE PROCESSING APPARATUS FOR PROCESSING PHOTOGRAPHED IMAGES - An image processing apparatus of the present invention acquires a photographed image of an object on which indicators have been arranged, detects the indicators from the photographed image with use of a comparison reference image for pattern matching prepared in advance, and instructs to perform predetermined processing based on the detected indicators. The indicators each have a pattern where influence of geometrical image distortion generated corresponding to a photographing distance or a photographing angle with respect to the object is restrained by a central portion of the photographed image, and the comparison reference image is a partial image corresponding to a central portion of the indicator. The indicators are detected from the photographed image by comparing the comparison reference image with the acquired photographed image. | 03-06-2014 |
| 20140111836 | COLOR UNIFORMITY CORRECTION USING A SCANNER - Techniques for correcting the color uniformity of a laser printer of a digital press or other device are provided. A process for correcting the color uniformity of a laser printer may include scanning a test page by an inline scanner of a digital press, determining scanner signal data from the test page, determining a scanner polynomial fitted to the scanner signal data, and determining a non-uniform coverage polynomial from the scanner polynomial. Additionally, techniques for verifying the linearity of a scanner are also provided. | 04-24-2014 |
| 20140139897 | Image Reader - An image reader includes a moving portion, a transparent plate, a reference member, and a detecting portion. The reference member that is provided in at least one of a position that is not the manuscript contact surface in the first scanning direction and a position that is further to a side in a first direction from the transparent plate than the manuscript contact surface. The detecting portion is supported by the moving portion and includes a plurality of detecting elements, in the second scanning direction, detecting reflected light of light irradiated from a light source. A height position of the detecting portion when the reference member is on the side in the first direction is further to the side in the first direction than a height position of the detecting portion when the manuscript contact surface is on the side in the first direction. | 05-22-2014 |
| 20140168732 | VERIFYING ACCURACY OF A SCANNED DOCUMENT - A document scanner ( | 06-19-2014 |
| 20140168733 | SYSTEM FOR VERIFYING ACCURACY OF A RASTER SCANNED IMAGE OF A DOCUMENT - A system for verifying accuracy of a raster scanned image of a document ( | 06-19-2014 |
| 20140177016 | SYSTEMS AND METHODS FOR STREAK DETECTION IN IMAGE ARRAY SCANNING - A system and method are provided for streak detection in an image scanning system. The disclosed systems and methods may be particularly applicable to constant velocity transport (CVT) digital scanning systems by comparing multiple scans of a simply-produced test pattern passed over the sensor in multiple orientations. Image information from each pass of the test pattern through the image scanning system may be compared to image information from other passes in which the orientation of the test pattern is changes. The data may be normalized and compared to discern image quality defects introduced by the image scanning system including image defects presented in the form of streaks in an output image based on the scanned data. Cumulative data regarding detected image defects and defect correction measures applied in the image scanning system may be collected and stored for a user to access. | 06-26-2014 |
| 20140185114 | IMAGE FORMING APPARATUS FOR FORMING A MEASUREMENT IMAGE ON A SHEET - An image forming apparatus includes an image forming unit configured to form a measurement image on a sheet, a measurement unit configured to irradiate light on the measurement image and measure reflected light from the measurement image, a white reference plate provided to be movable to a first position and a second position, a black member provided to be movable to a third position where the black member shields light that is irradiated on the white reference plate and to a fourth position that is retracted from the third position, and a control unit configured to, in a state in which the white reference plate is at the second position and the black member is at the third position, cause the sheet, on which the measurement image has been formed, to pass between the measurement unit and the black member and cause the measurement unit to measure the measurement image. | 07-03-2014 |
| 20140240803 | Toner Estimation Mechanism - A method is disclosed. The method includes estimating a quantity of toner to be used to print a job at a printer by calculating a buildup of toner at edges of data on each page of the print job. | 08-28-2014 |
| 20140268258 | AUTOMATICALLY COMPENSATING FOR COLOR DIFFERENCES FROM SIDE 1 TO SIDE 2 OF A DOCUMENT SCANNING DEVICE - What is disclosed is a system and method for compensating for side 1 to side 2 differences in a document scanning device. In one embodiment, the present method involves selecting at least one solid area patch printed in at least one reference color of a color space. The scan head of side 1 scans the patch to capture a first set of color values. The scan head of side 2 scans the same patch to capture a second set of color values. A regression method generates a coefficient matrix which minimizes a ΔE color difference metric between the first and second sets of color values. An image processing module associated with the side 2 scanner is programmed with the coefficient matrix and uses the coefficient matrix to adjust a color response of the side 2 scanner to compensate for side 1 to side 2 differences. | 09-18-2014 |
| 20140268259 | IMAGE INSPECTION DEVICE, IMAGE INSPECTION SYSTEM, AND IMAGE INSPECTION METHOD - An image inspection device includes: a read-image acquiring unit that acquires a read image of a formed and output image; an inspection-image generating unit that generates an inspection image used for inspection of the read image on the basis of information of an image to be formed and output acquired from an image processing apparatus that corrects density of the image according to a state of an image forming apparatus, and generates the information; and an inspection-result acquiring unit that acquires a result of determination of a defect in the read image based on a difference between the inspection image and the read image. The inspection-image generating unit acquires density correction information in which densities before and after density of the image is corrected are associated, and generates the inspection image corresponding to density before corrected, on the basis of the acquired density correction information. | 09-18-2014 |
| 20150049371 | SPECTRAL CHARACTERISTIC ACQUISITION APPARATUS, IMAGE EVALUATION APPARATUS, AND IMAGE FORMING APPARATUS - A spectral characteristic acquisition apparatus includes a light emitting part configured to emit light onto an object, a light dividing part configured to divide the light reflected from the object into multiple light beams by multiple aperture parts of the light dividing part, a dispersing part configured to form multiple diffraction images corresponding to the aperture parts by spectrally dispersing the light beams, a light receiving part including an array of spectral sensors that receive the diffraction images at substantially the same position on their respective light receiving surfaces and convert the received diffraction images into electrical signals, and an operation part configured to compute a spectral characteristic of the object based on the electrical signals. | 02-19-2015 |
| 20150070736 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - According to a result of comparing a first color mode acquired when a first layout obtained by aggregating a plurality of pieces of input image data is employed, with a second color mode acquired when a second layout is employed, the second layout being obtained by aggregating, among the plurality of pieces of input image data, image data that has not been determined as obtained by reading a blank (e.g., by aggregating image data determined as having print information while not aggregating pieces of image data determined as having no print information), an image processing apparatus, an image processing method and/or a computer-readable storage medium for use with same according to the present invention(s) determines that the first or second layout is to be employed. | 03-12-2015 |
| 20150070737 | GLOSSINESS DETERMINING DEVICE, COLOR MEASURING DEVICE, IMAGE FORMING APPARATUS, AND GLOSSINESS DETERMINATION METHOD - A glossiness determining device includes: a light source; a two-dimensional sensor that receives reflected light containing a specular reflection component of a subject illuminated by the light source, and outputs an image of the subject; and a determining unit that determines glossiness of the subject by using a saturated image, which is the image of the subject output by the two-dimensional sensor and in which pixel values of a partial area are saturated. | 03-12-2015 |
| 20150131131 | IMAGE READING APPARATUS, AND IMAGE READING METHOD - Provided is an image reading apparatus including an imaging unit that images light incident from a medium on which an image is formed, a measurement unit that measures a color value on an image, based on image data obtained by the imaging unit, in correspondence with a position on the image, a generation unit that generates error information indicating an error included in the color value according to the color value measured by the measurement unit and a relative position of the position on the image with respect to an optical axis of the imaging unit, and an output unit that outputs the error information generated by the generation unit and the measured color value. | 05-14-2015 |
| 20150350493 | IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS - An image reading apparatus including: two image reading devices which are different from each other, read out a same surface of a same sheet after image formation on a sheet conveyance path and read out a plurality of common color patches formed in the same surface of the same sheet, one of the image reading devices being a first image reading device which reads out only a partial region in a main scanning direction and the other of the image reading devices being a second image reading device which reads out over an image formation width in the main scanning direction; and a calculation section which estimates a value equivalent to reading information of the first image reading device from reading information of the second image reading device on the basis of reading information obtained by reading out the common color patches. | 12-03-2015 |
| 20150365564 | COLOR CONVERSION METHOD USING SCANNER, IMAGE READING SYSTEM, AND IMAGE FORMING APPARATUS - A color conversion method according to the present invention, in which a scanner that outputs a first color value of a device-dependent color space is used, includes the steps of: acquiring the first color value by reading, by the scanner, a printed material which is based on image data composed of C, M, Y, K values; converting the acquired first color value to a second color value using a scanner profile of the scanner; mapping the first color value acquired from the printed material to the K value of the image data of the printed material; determining a correction quantity of the second color value from the mapped first color value and the K value using a scanner profile correcting LUT; and correcting the converted second color value using the determined correction quantity of the second color value, and outputting the second color value after being corrected. | 12-17-2015 |
| 20160021278 | ALIGNMENT SHEET, IMAGE FORMING APPARATUS AND METHOD FOR ALIGNING IMAGE FORMING POSITION - An alignment sheet for alignment of an image forming position of a sheet includes a first side and a second side. The first side has a reference image which is formed in a periphery of the first side and which is used for measuring a position of an image on the first side. The second side has a background image with a predetermined area which is formed at a location where the background image does not overlap the reference image. The reference image and the background image are read at the same time by an image reading section while an area with the reference image is folded such that the background image appears as a background. | 01-21-2016 |
| 20160028922 | IMAGE READING APPARATUS AND IMAGE READING METHOD - An image reading apparatus capable of accurately detecting abnormal pixels caused by a contaminant such as dirt, stain, or flaw on a moving document reading glass being read. An image processing unit of the image reading apparatus performs a first abnormal pixel detection process to detect pixel signals representing abnormal pixels and output from image sensors for respective colors when a reading unit reads a guide plate in a main scanning direction in a state before an original passes through a moving document reading position, performs a second abnormal pixel detection process to detect pixel signals representing abnormal pixels and output from the image sensors when an original being conveyed is read by the reading unit in the main scanning direction, and detects a main scanning direction of abnormal pixels based on results of these detection processes. | 01-28-2016 |
| 20160080610 | IMAGE CAPTURING DEVICE, COLOR MEASUREMENT APPARATUS, AND IMAGE FORMING APPARATUS - An image capturing device includes: a two-dimensional image sensor that captures an image of a predetermined image capture area including a subject; a light source that illuminates the image capture area; and a light blocking member that blocks light traveling from the light source toward a specular reflection position, the specular reflection position being a position that is in the image capture area and where, if light travels from the light source, the light would be specularly reflected to the two-dimensional sensor. The light blocking member is arranged outside the image capture area. | 03-17-2016 |
| 20160112581 | CALIBRATION SYSTEM, CALIBRATION METHOD, AND RECORDING MEDIUM FOR COORDINATING COLOR VALUE OF OUTPUT COLOR OF ONE IMAGE FORMING APPARATUS WITH COLOR VALUE OF OUTPUT COLOR OF ANOTHER IMAGE FORMING APPARATUS - A calibration system includes a photographing device, a first image forming apparatus, a second image forming apparatus, and a tone-characteristics correcting circuit. The first image forming apparatus prints a first chart including patches in a plurality of colors. The second image forming apparatus prints a second chart corresponding to the first chart. The tone-characteristics correcting circuit corrects tone characteristics of the first image forming apparatus. The tone-characteristics correcting circuit corrects the tone characteristics of the first image forming apparatus to tone characteristics of the second image forming apparatus based on a difference in color value of patches between the first chart and the second chart in a both-side print chart image generated such that the first chart and the second chart are simultaneously photographed by the photographing device. | 04-21-2016 |
| 20160112604 | METHOD FOR CALCULATING A SPOT COLOR DATABASE - A method for calculating spectral data records for spot colors includes the steps of generating or selecting spectral characterization data of a printing process; selecting colorimetrically defined spot colors from a color table; calculating the spectrum of the spot colors based on the spectral characterization data on a white printing substrate and on a black printing substrate; calculating the spectrum of the halftone spot colors from the spectra of the spot colors on a white substrate and on a black substrate; adapting the spectra of the spot colors to a defined white printing substrate; adapting the spectra of the spot colors to the predetermined values from the color table; adapting the spectra of the spot colors to a defined black printing substrate; and adapting the spectral dot gains to a defined standard. The calculated spectral data record are used for color control in a printing press. | 04-21-2016 |
| 20160117575 | IMAGE FORMING APPARATUS AND PRINTING INSPECTION SYSTEM - An image forming apparatus includes: an image forming section that forms an image on a recording medium using color material having color and transparent color material; a reading section that reads the image formed on the recording medium by the image forming section; and a reference data calculation section that calculates reference data based on read data obtained when the reading section reads a first color sample which is formed using only the color material having color by the image forming section and a second color sample which is formed using the color material having color and the transparent color material by the image forming section; and in which an image on the recording medium, which is an inspection target and is read by the reading section, is inspected by an inspection section based on the reference data calculated by the reference data calculation section. | 04-28-2016 |
| 20160119487 | PRINTING SYSTEM AND METHOD OF OPERATION - According to one example, there is provided a printing system. The printing system comprises a support having a plurality of spaced apertures and a colour sensor moveable to measure light from each aperture. The printing system further comprises a controller to control the colour sensor to measure characteristics of light emitted through each aperture, and to determine, for each aperture, light calibration data. | 04-28-2016 |
| 20160155032 | SPECTRAL PRINT MAPPING | 06-02-2016 |
| 20160191749 | SCAN CALIBRATION METHOD THAT ELIMINATES THE COLOR INACCURACY OF PRINTED COLOR CHARTS USED ON SCAN CALIBRATIONS - A method is disclosed of executing a scan calibration program on multi-function peripherals, the method includes: receiving a request for initiation of a scan calibration program on a multi-function peripheral; determining whether or not a print calibration should be performed on the multi-function peripheral before printing a calibration chart on the multi-function peripheral, wherein the determination of whether or not to execute the print calibration is based on a predetermined condition of the multi-function peripheral; executing the print calibration on the multi-function peripheral, if the predetermined condition exists on the multi-function peripheral; and printing the calibration chart on the multi-function peripheral after the determination of whether or not the print calibration should be performed. | 06-30-2016 |
| 20160205272 | IMAGE PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM | 07-14-2016 |
| 20180027132 | COLOR MEASUREMENT SYSTEM, IMAGE GENERATING APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM | 01-25-2018 |
