Class / Patent application number | Description | Number of patent applications / Date published |
358515000 | Color separation | 12 |
20090303556 | 4+ COLOR MANAGEMENT USING A VIRTUAL CMYK COLOR PARADIGM - A color management method, system and storage medium output 4+ color separation signals to a 4+ (5 or more) color print engine. An input source color is converted into virtual intermediate CMYK separation signals using a 4-color management tool, which may be a conventional tool. These virtual intermediate CMYK separation signals are received as input within a digital front end (DFE), which transforms the intermediate signals into 4+ separation signals, such as for a 6-color print engine. A transformation unit of the DFE passes some of the input separation signals through directly as output (without transformation) while transforming others by splitting them into light and dark separation signals, such as light and dark cyan or magenta using a blend curve that will output the same tonal quality. The transformation unit may use a blending curve that takes into account ink-limit constraints and may maximize light colorant usage to improve image smoothness in light image regions. | 12-10-2009 |
20100091347 | System And Method For Rendering Image Values To Be Printed In A Single Pass By Serially Arranged Printheads - A method processes image data for a color separation to reduce visible perception of misalignment of printheads in a plurality of serially arranged printheads. The method includes detecting cross-process edges in image values for objects in a color separation to be printed by a plurality of serially arranged printheads, and disproportionately mapping image values corresponding to the object in the color separation to one of the printheads in the plurality of serially arranged printheads. | 04-15-2010 |
20100182659 | APPLICATION DRIVEN SPOT COLOR OPTIMIZER FOR REPROGRAPHICS - A method for identifying one or more spot colors in a full color multi-bit image data, and processing the identified spot colors for output on an image printing system is provided. The method includes inputting the full color image data, wherein the full color image data includes a plurality of pixels; analyzing the inputted image to identify the pixels with a spot color from the pixels with a non-spot color, wherein each pixel with a spot color is within a predetermined threshold from a desired color value; processing the identified spot color pixels; and combining the processed spot color pixels with non-spot color pixels to form a data structure. | 07-22-2010 |
20110255138 | SYSTEM AND METHOD FOR DETECTING COLOR-TO-COLOR MISREGISTRATION - A system and method is provided for detecting and correcting color-to-color process direction misregistration errors, including a printer capable of printing in a plurality of colors, the printer having a sensor for generating a signal including information corresponding to a color registration pattern printed on a substrate by the printer. The system and method further include a processor for receiving the signal from the sensor and analyzing the signal for detecting color-to-color process direction misregistration via an algorithm. The color registration pattern includes a plurality of segments, each segment associated with a different color of the plurality of colors and each segment including at least one different dimension from at least one other segment of the plurality of segments. | 10-20-2011 |
20120127545 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - When a lightness level expressed by a selected pixel value is equal to or larger than a threshold, the use amounts of respective color materials of a first color material group, and those of respective color materials of a third color material group are stored in a memory in association with the selected pixel value. On the other hand, when the lightness level expressed by the selected pixel value is smaller than the threshold, the use amounts of respective color materials of the first color material group, and those of respective color materials of a second color material group are stored in the memory in association with the selected pixel value. | 05-24-2012 |
20130128323 | IMAGE SCANNING APPARATUS AND METHOD FOR IMAGE SCANNING - An image scanning apparatus is provided. The image scanning apparatus includes a user interface unit receiving a color to be removed during a scanning operation, a scanning unit scanning an original copy by using a color-changeable light source, a storage unit storing the scanned image of the scanned original copy and a control unit controlling the light source to output a color corresponding to the received color onto the original copy. | 05-23-2013 |
20130235437 | IMAGE READING APPARATUS AND RELATED METHODS - According to embodiments, an image reading apparatus and an image reading method are disclosed. The image reading method comprises receiving a signal of an image color of an image on an original, and based on the received signal, controlling an illuminating section comprising a red light source, a green light source and a blue light source so that one of the red, green and blue light sources is turned off, while the remaining light sources are turned on. The image reading method further comprises receiving, on an image sensor, light from the turned-on light sources that is reflected off of the original, and processing the light received by the image sensor to form a monochromatic image. | 09-12-2013 |
20140293382 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes an achromatization determination portion, an achromatization processing portion, and a line designation portion. If a black pixel is present within a predetermined peripheral range from a target pixel in a sub-scanning direction, the achromatization determination portion determines whether to achromatize the target pixel, on the basis of an attribute of a background determination pixel present in an opposite direction from the target pixel with respect to the black pixel and within a range of a predetermined number of pixels from the black pixel. If no black pixel is present within the predetermined peripheral range from the target pixel in the sub-scanning direction, the achromatization determination portion determines not to achromatize the target pixel. The achromatization processing portion achromatizes the target pixel determined to achromatize by the achromatization determination portion, and does not achromatize the target pixel determined not to achromatize by the achromatization determination portion. | 10-02-2014 |
20150043046 | Image Processing Apparatus and Image Forming System - An image processing apparatus processes an image. An image obtaining section receives a color image. A region extracting section extracts a character region from the color image. A character color determining section determines whether the characters in the extracted character region have a non-highlight color or a different color from the non-highlight color. A highlighting section performs a highlight process on the characters if the characters have a color different from the non-highlight color. A de-highlighting section performs a de-highlight process on the characters if the characters have the non-highlight color. An image generating section produces a color-reduced image in which a number of colors has been reduced as a result of either the highlight process or the de-highlight process performed on extracted character region. A transmitting section transmits the color-reduced image to an external apparatus. | 02-12-2015 |
20150062673 | COLOR SEPARATION APPARATUS, COLOR SEPARATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - A color separation apparatus comprising: a target value acquisition device; a dot threshold data acquisition device which acquires dot threshold data including information on a threshold for each of the dots for converting the continuous-tone image data into binary image data for each of the color materials; a print profile acquisition device which acquires a print profile showing correspondence between a device signal value and a value of a color system in the printer; and a color separation device which allows the printer to calculate candidates of the device signal value on the basis of the target values of colors acquired by the target value acquisition device and the print profile, and determines a device signal value for reproducing colors corresponding to the target values from among the candidates of the device signal value on the basis of the dot threshold data and the print profile. | 03-05-2015 |
20150062674 | COLOR SEPARATION APPARATUS, COLOR SEPARATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM - A color separation apparatus comprising: a target value acquisition device; a dot threshold data candidate selection device; a print profile acquisition device which acquires a print profile showing correspondence between device signal values and color system values in the printer for each of the candidates of dot threshold data; and a color separation device which allows the printer to calculate candidates of the device signal values on the basis of the target values of colors acquired by the target value acquisition device and the print profile, and determines dot threshold data for reproducing colors corresponding to the target values on the basis of the candidates of dot threshold data and the print profile from among the candidates of dot threshold data, as well as determines device signal values for reproducing colors corresponding to the target values from among the candidates of device signal values. | 03-05-2015 |
358516000 | White balance correction | 1 |
20100195172 | IMAGE PROCESSOR FOR CORRECTING IMAGE DATA - An image processor includes an identifying unit, a first correcting unit, and a second correcting unit. The identifying unit identifies a white point value of an image represented by first image data. The white point value indicates a first color temperature. The first correcting unit performs a white balance correction on the first image data such that the white point value approaches a target white point value. The target white point value indicates a second color temperature. The second correcting unit performs a brightness correction for correcting the first image data corrected by the first correcting unit into second image data such that an image corresponding to the second image data is brighter as the second color temperature is higher than the first color temperature and such that the image corresponding to the second image data is darker as the second color temperature is lower than the first color temperature. | 08-05-2010 |