Patent application number | Description | Published |
20090309996 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, STORAGE MEDIUM, AND PROGRAM - In an image processing apparatus which can always provide an excellent processed image, an analysis unit analyzes condition information representing a condition at a time when an image is obtained and being included in image information, and determines an algorithm of an image correction process for the image based on the analyzed result. | 12-17-2009 |
20100046018 | IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD - In an image processing for printing a monochrome image, color deviation can be suppressed to print a favorable monochrome image. Specifically, the printing of a monochrome image is performed by using black ink in all of a color reproduction region (color gamut) including a gray axis and regions other than the gray axis. This avoids the use of C, M, and Y for the expression of the monochrome image to suppress the color deviation due to slight imbalance among amounts of three colors of inks. | 02-25-2010 |
20100290067 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM - For a printing apparatus which saves on a color material, an image processing apparatus is realized which enables a user to incur printing costs only for necessary information and necessary areas in a print product. For this purpose, there is provided an image processing apparatus including a separation unit configured to analyze and separate print information into text, photograph, and graphic constituent elements, a display unit configured to display information about a color material used amount to be used in printing for each of the separated constituent elements, and a setting unit configured to allow a user to set a change in the color material used amount for each of the separated constituent elements. | 11-18-2010 |
20110001993 | IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS - An image processing apparatus which previously sets a reduction order based on saturation with respect to inks to be used in a saving mode. When a color uses two or more colors of ink, the image processing apparatus reduces the ink featuring high on the reduction order, or increases the reduction amount of the ink featuring high on the reduction order. | 01-06-2011 |
20110032550 | LED EMISSION WAVELENGTH ESTIMATION METHOD, IMAGE READING APPARATUS, AND MULTIFUNCTION PRINTER APPARATUS - In a prior art, since the wavelengths of R, G, and B LEDs serving as the light sources of a CIS scanner vary, read colors vary between individual scanners. Since the behavior of metamerism also changes due to the same reason, measures against the metamerism are hard to take. To solve this problem, a color patch is irradiated with light from an LED, and its spectral reflectivity is measured using a spectroreflectometer, thereby estimating the emission wavelength of the light source LED. A signal change characteristic representing the relationship to the output signals of three LEDs obtained from the spectral reflectivity of the patch is stored in a memory. In actual image reading, color correction is performed based on the signal change characteristic stored in the memory. | 02-10-2011 |
20110164262 | IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD - In an image processing for printing a monochrome image, color deviation can be suppressed to print a favorable monochrome image. Specifically, the printing of a monochrome image is performed by using black ink in all of a color reproduction region (color gamut) including a gray axis and regions other than the gray axis. This avoids the use of C, M, and Y for the expression of the monochrome image to suppress the color deviation due to slight imbalance among amounts of three colors of inks. | 07-07-2011 |
20110285777 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, INKJET PRINTING APPARATUS AND DATA GENERATING APPARATUS - An image processing apparatus, an image processing method, an inkjet printing apparatus and a data generating apparatus are provided that can reduce, when a plurality of types of inks are used to print an image, the color unevenness that is caused by the variation of ejecting characteristics among a plurality of nozzles. A conversion table for correcting, based on an ejecting characteristic, a multi dimensional color printed by ejecting at least two types of inks on a common region on a printing medium is used to correct a plurality of color signals corresponding to these inks. | 11-24-2011 |
20110285778 | IMAGE PROCESSING APPARATUS, INK JET PRINTING APPARATUS, AND IMAGE PROCESSING METHOD - Printing heads of combinations of four ink colors and seven printing characteristic ranks are previously used to print an image for measurement, and table parameters corresponding to all of the combinations of nozzle ink colors and printing characteristic ranks are obtained on the basis of a measurement result of this image for measurement and stored in a memory. Then, when printing is actually performed in a printer, a primary color image for measurement is printed for each nozzle of a printing head for each of four ink colors. A printing characteristic rank for each nozzle is obtained for each of four ink colors based on a measurement result of this image for measurement, and a table parameter is selected that corresponds to the same combination as the combination of the obtained printing characteristic rank of each nozzle of four ink colors, by referring to the memory. | 11-24-2011 |
20110285779 | IMAGE PROCESSOR, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD - An image processor, a printing apparatus, and an image processing method are provided that can reduce, when a plurality of types of inks are used to print an image, the color unevenness that is caused by the variation of ejecting characteristics among a pluralities of nozzles. To realize this, for a color formed by overlapping at least two colors of inks, parameters are prepared that are determined so as to reduce the color difference in the printing medium due to the variation of the ejecting characteristic among the respective pluralities of nozzles. During printing, the parameters are used to correct the first color signal owned by the individual pixels to the second color signal. | 11-24-2011 |
20110285780 | DATA PROCESSING APPARATUS AND DATA PROCESSING METHOD - The present invention reduces an uneven color of a color having two or more colors of inks, the uneven color occurring due to manufacturing variations of ink ejection nozzles and so on. Each of a plurality of correction tables that is assigned to each predetermined number of nozzles that are used for printing on a common region in the print medium, of a plurality of nozzle arrays formed on a print head, each of the nozzle arrays ejecting a plurality of inks including a first ink and a second ink whose color is different from the color of the first ink, is generated on the basis of at least an ink ejection property of nozzles ejecting the first and second inks. | 11-24-2011 |
20110286020 | IMAGE PROCESSOR AND IMAGE PROCESSING METHOD - The present invention is intended to provide an image processor that can reduce color unevenness occurring in a composite color image formed by overlapping different types of inks due to a variation in printing characteristic among a plurality of nozzles while suppressing a reduction in processing speed in generation of printing data. The image processor converts a color signal indicating the image represented by a plurality of elements to a color signal corresponding to the plurality of inks with use of a conversion table determined on the basis of ejection characteristics of nozzle groups corresponding to the plurality of inks so as to suppress color unevenness occurring in a composite color image due to a variation in ejection characteristic among the plurality of nozzles. | 11-24-2011 |
20110316920 | EJECTION CHARACTERISTICS EVALUATION APPARATUS AND EJECTION CHARACTERISTICS EVALUATION METHOD FOR INKJET PRINTING APPARATUS, AND INKJET PRINTING APPARATUS - The present invention prints a plurality of ejection characteristics detection patterns with different print duties. Each of the patterns is divided into areas with a certain number of pixels, and each area is read with a plurality of different read colors. Based on the read values by the read color for each area, evaluation values by the read color that indicates ejection variation volume that is the difference between ink ejection volume to each area and standard ink ejection volume are set. A weighted average is obtained by applying the weight determined by reading accuracy of a reading unit to evaluation values by color for each area with different print duties formed by the same nozzle. The ejection characteristics of a nozzle that prints each of the areas are evaluated using the weighted average value. | 12-29-2011 |
20120033006 | PRINTING APPARATUS AND PROCESSING METHOD THEREFOR - A printing apparatus includes a full-line printhead in which a plurality of chips, on each of which a plurality of nozzle arrays are juxtaposed, are arranged in the nozzle arrayed direction, and which prints by the entire width of a printing medium using a plurality of nozzles arranged on the plurality of chips. The printing apparatus discharges ink from a predetermined number of successive nozzles on each nozzle array of each chip toward a printing medium during conveyance, thereby forming a plurality of first patterns corresponding to at least one nozzle array of each chip on the printing medium in the nozzle arrayed direction, reads the plurality of first patterns from the printing medium during conveyance using a sensor, calculates the shift amount of an ink attached position based on the plurality of read first patterns and corrects the attached position of ink based on the shift amount. | 02-09-2012 |
20120069067 | PRINTING APPARATUS AND METHOD FOR CONTROLLING PRINTING APPARATUS - According to the present invention, each printing head includes chips wherein a plurality of nozzles are prepared. The density of dots formed by ejecting ink from the nozzles is detected for each chip, and when a density difference between the chips is smaller than a predetermined value, print data are corrected, and the number of dots is adjusted so as to reduce the density difference. When the density difference is equal to or greater than the predetermined value, first, a drive pulse for the nozzles is modulated and the volume of ink to be ejected for one dot is adjusted so as to reduce the density difference. Thereafter, the print data is corrected, and the number of dots to be formed is controlled so as to reduce the density difference. | 03-22-2012 |
20130010025 | INK-JET PRINTING APPARATUS AND INK STAIN DETECTION METHOD IN THE SAME - An apparatus includes a printing unit configured to eject ink from a print head onto a sheet conveyed in a direction to perform printing on the sheet; a conveying unit configured to be provided on a downstream side of the print head in the direction, and configured to include a rotating member in contact with the sheet; and a reading unit configured to read a surface of the sheet on a downstream side of the rotating member in the direction, in which information on ink adhesion to the rotating member is obtained based on a result read by the reading unit. | 01-10-2013 |
20130076811 | INKJET RECORDING APPARATUS - An inkjet recording apparatus includes a recording head configured to discharge ink, a first ink tank configured to store ink to be supplied to the recording head, a circulation path configured to circulate ink between the first ink tank and the recording head, a measurement unit configured to measure an ink temperature in the circulation path, a second ink tank configured to replenish ink to the circulation path, and a control unit configured to control replenishment of ink from the second ink tank to the circulation path based on the ink temperature measured by the measurement unit. | 03-28-2013 |
20130235115 | PRINTING APPARATUS - A printing apparatus conducts inspection associated with printing by changing a relative positional relationship between a line print head and a sheet feeding position for a sheet in a direction perpendicular to a direction in which the sheet is fed, forming an image on the sheet using the line print head a plurality of times, and reading the formed images using a reading unit. | 09-12-2013 |
20130300790 | INKJET PRINTING APPARATUS - Provided is an inkjet printing apparatus that, when performing multi-pass printing using pigmented ink and image enhancing liquid for adjusting the glossiness, is capable of outputting a high-quality image in which gloss unevenness due to displacement of the printing position cannot be noticed. In order to accomplish this, dot arrangement data is generated based on input image data so that the dot arrangement of image enhancing liquid includes a greater low-frequency component in the spatial frequency than the dot arrangement of colored ink on a print medium. As a result, it is possible to suppress gloss unevenness even when printing position displacement occurs, while at the same time suitably suppressing a feeling of graininess in colored ink. | 11-14-2013 |
20130300791 | IMAGE PROCESSING APPARATUS, INKJET PRINTING APPARATUS, AND INKJET PRINTING METHOD - In a color mode, among clear ink data CL | 11-14-2013 |
20130301066 | IMAGE PROCESSING APPARATUS - Provided is an ink jet printing apparatus that, without causing an increase in apparatus size, can print an image having high evenness in both of image clarity and glossiness regardless a gradation or gamut of the image. For this purpose, on the basis of input image data, pieces of multivalued color data respectively corresponding to colored inks, and first multivalued data and second multivalued data that correspond to image enhancing liquid are generated. On a print medium, the colored inks and the image enhancing liquid according to the first multivalued data are printed at nearly the same timing, and after the printing of them has been completed, the image enhancing liquid according to the second multivalued data is printed. In doing so, gloss properties appearing on the print medium can be made to fall within certain ranges, respectively, independently of input image data. | 11-14-2013 |
20130328969 | INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD - The effects on an image are maximally decreased with respect to ejection by printing elements included in the low flow rate areas of a serial channel in an inkjet printing apparatus that uses a joined head in which multiple chips provided with multiple printing element arrays are disposed. For this purpose, print data is distributed to individual printing elements at a joining portion between two chips, such that fewer printing elements execute ejection operations on a printing element array A distanced farther from the center line of a base plate than a printing element array D nearer the center line. Doing so suppresses ejection by printing elements included in low flow rate areas which manifest near the turns of an ink channel, and reduces density defects due to ejection by such printing elements. | 12-12-2013 |
20140184676 | DATA PROCESSING APPARATUS AND DATA PROCESSING METHOD - The present invention reduces an uneven color of a color having two or more colors of inks, the uneven color occurring due to manufacturing variations of ink ejection nozzles and so on. Each of a plurality of correction tables that is assigned to each predetermined number of nozzles that are used for printing on a common region in the print medium, of a plurality of nozzle arrays formed on a print head, each of the nozzle arrays ejecting a plurality of inks including a first ink and a second ink whose color is different from the color of the first ink, is generated on the basis of at least an ink ejection property of nozzles ejecting the first and second inks. | 07-03-2014 |
20140205813 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - One objective of the present invention is to provide an image processing apparatus and an image processing method, whereby a difference of gloss at irregular, very small portions can be appropriately reproduced. The image processing apparatus determines, based on image data for an image to be printed on a print medium, amounts of a color printing material for printing the image on the print medium and an image quality control material for adjusting glossiness of the image, and obtains information on an unevenness level of a surface of the image based on the image data. In the above determining, the amount of the image quality control material to be applied to the print medium is determined based on the unevenness level indicated by the obtained information. | 07-24-2014 |
20140368217 | Noise Equivalent Circuit - Provided is a noise equivalent circuit required for completing an EMC analysis in a practical time and through a low-cost calculation process at an upstream stage of system design. According to the present invention, the noise equivalent circuit comprises: one or more energy sources; a propagation path for propagation of energy from the energy source including a conductive path such as a cable and an electromagnetic field coupling path due to the coupling of an electric field and a magnetic field with another electronic device or cable; and a GND port connected to a system, and is characterized in that each port is represented by the noise voltage source or the noise current source and the internal impedance. This noise equivalent circuit can be used to determine an external impedance that is varied depending on a load connected externally or the distance from an external device or a cable, whereby the noise of the system as a whole can be analyzed (see FIG. | 12-18-2014 |