Abstract: An image data sequencing method for a memory unit inside an optical scanning device. The image data sequencing method is particularly suitable for scanning a line of pixels with each pixel comprising a plurality of primary colors. The image data sequencing method involves scanning a line of pixels to obtain the data for a primary or secondary color. The pixels within the scan line are subdivided into groups. A storage space is reserved both before and after the address space inside the memory unit for holding the scanned primary or secondary color data so that all the primary or secondary color data constituting a pixel are in a fixed sequence next to each other inside the memory unit. When all the primary or secondary color data of pixels within a group are secured, the group of data is released from the memory unit.

Abstract: An image processing device includes a detecting unit and a pre-processing executing unit. Before image data is generated for a printer, the detecting unit detects first density information per image element, and detects, for the image elements, whether or not overprinting is set. If the detecting unit detects that the overprinting is set at an image element and the image element has a basic color of which first density information is set 0%, the pre-processing executing unit executes a pre-processing which changes the first density information of the image element into second density information which is greater than 0% and which is capable of being recognized as white by the naked eye.

Abstract: A gamut mapping mode is input in accordance with a user instruction. A color gamut of an output device is obtained. A moving range of a focal point is set in accordance with the gamut mapping mode. Gamut mapping is performed based on the color gamut of the output device and the moving range of the focal point.

Abstract: A system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.

Abstract: A color look-up table includes a plurality of images recorded on a film. Each of the images being recorded on a separate picture of the film and containing at least a first level and a second level. The first and second levels having different pixel color values and are arranged to form a detectable geometric pattern on each of the pictures. The first field and a second field having detectable boundaries assigned to characterize distortions on the film.

Abstract: An image forming apparatus includes: an image output unit that outputs an image; and an image processing unit that converts an input image signal to an output image signal and outputs the image signal to the image output unit, the image output unit having: an image carrier that carries at least a latent image; plural developer containers containing mutually different color developers used for developing the latent image carried on the image carrier; and a transport member for repeated operations of attachment of the developer contained in one of the plural developer containers, transport of the attached developer to the image carrier, and removal of remaining developer, and the image processing unit having a change unit that changes a color conversion characteristic of an image signal in correspondence with color mixture of the mutually different color developers.

Abstract: A color look-up table includes a plurality of images recorded on a film. Each of the images being recorded on a separate picture of the film and containing at least a first level and a second level. The first and second levels having different pixel color values and are arranged to form a detectable geometric pattern on each of the pictures.

Abstract: Motion picture scenes to be colorized/depth enhanced (2D->3D) are broken into separate elements, backgrounds/sets or motion/onscreen-action. Background and motion elements are combined into composite frame which becomes a visual reference database that includes data for all frame offsets used later for the computer controlled application of masks within a sequence of frames. Masks are applied to subsequent frames of motion objects based on various differentiating image processing methods, including automated mask fitting/reshaping. Colors and/or depths are automatically applied to masks throughout a scene from the composite background and to motion objects.

Abstract: An image reading signal processing IC includes three circuits which independently process input analog image signals of three primary colors. Each circuit includes an ADC which converts amplified analog image signals into digital image data. Each circuit also includes an LVDS processing circuit which outputs the digital image data in a low voltage differential signaling level. Each circuit further includes a test pattern generating circuit connected between the ADC and the LVDS processing circuit for generating digital data of a test pattern. The image reading signal processing IC additionally includes an operational mode determination information input unit which inputs operational mode determination information to the test pattern generating circuit. Further, the image reading signal processing IC includes a switching unit which switches one of the digital data of the test patterns to any one or more of main scanning direction gradation pattern data and sub scanning direction gradation pattern data.

Abstract: Provided is a spot color printing color converting device including: an image data acquiring unit for acquiring image data in which the colors of pixels are represented by the gradation values of a first color coordinate system; a spot color list acquiring unit for acquiring a spot color list associating the gradation values of the first color coordinate system with the ink gradation values of a second color coordinate system specifying the gradation of ink colors for printing spot colors.

Abstract: 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.

Abstract: Some embodiments of the invention provide several novel methods for distributing image content (e.g., picture content, video content, etc.). In some embodiments, the method tags the content with data that specifies an initial target color-region for the content. Some embodiments tag the data when the content is being created, while other embodiments tag the data when the content is being edited. The method uses the tag data to reformat the content for one or more different targets for the content. For instance, during the reformatting, some embodiments use the tags to perform proper color region conversion on the content. In some embodiments, this conversion converts the colors of each pixel in the content from the initial target color region to a subsequent target color region.

Abstract: A 4×4 LUT comprises a K to K LUT merged with a CMYK to CMYK LUT with values ranging from [0, 0, 0, 0] to [0, 0, 0, 255], said 4×4 LUT written to a known file format. A method for creating 4×4 look up tables (LUTs) uses the source and destination ICC profiles. A K to K LUT is built, a CMYK to CMYK LUT is built, the K to K LUT is merged with the CMYK to CMYK LUT, and the resulting LUT is written to a known file format. Such a process is important since it solves the issue of preserving K in a CMYK to CMYK transform while adding the performance improvement of a 4×4 LUT.

Abstract: This invention relates to a conversion table compression method of compressing a conversion table and storing the conversion table in a storage medium, including an axial difference creating step of creating an axial difference table by calculating, from data stored in the conversion table, the difference values between grid points adjacent in predetermined directions along a plurality of axes which define the input space of the conversion table, a compressing step of compressing the axial difference table to create compressed data, and a storing step of storing the compressed data in a recording medium.

Abstract: Disclosed is an image processing apparatus and a method of controlling the same. A color contact image sensor (CIS) module employing a single channel line sensor can be used to produce substantially the same performance as a color CIS module employing a three-channel line sensor and having color filters to, for example, reduce manufacturing costs. Moreover, a blurring phenomenon that can occur in a scanned image can be reduced and the quality of the scanned image can be improved.

Abstract: Erroneous determination of an image caused by color shift is prevented. Image data is divided in a sub-scanning direction into a first region where color shift hardly occurs and a second region where color shift easily occurs. There are detected a first color line drawing extending in a main-scanning direction in the first region, a second color line drawing extending in the main-scanning direction and having a width larger than that of the first color line drawing in the second region, and a third color line drawing extending in the sub-scanning direction in the image data. On the basis of the detected first, second, and third color line drawings, it is determined whether a document is a color document or not.

Abstract: An image generation method for generating image information of a color signal Y of an image A by using a color signal X of image A, and color signal X and color signal Y of an image B. The presence or absence of a point in color signal X of image B corresponding to each pixel position of color signal X of image A, and the position of the relevant corresponding point are estimated. To each estimated pixel position in color signal Y of image A, image information of the corresponding position in the second color signal Y of image B is assigned. Color signal Y at a pixel position in image A for which it is estimated that there is no corresponding point is generated by using the image information of color signal Y assigned to pixels having a corresponding point.

Abstract: An apparatus, system, and method for image processing are disclosed, each of which obtains a mark from image data, detects additional information in the mark, determines whether the mark is detected in the mark to generate a determination result, and controls processing performed by an image processing apparatus with respect to the image data based on the determination result.

Abstract: A clock-signal generating unit generates temporally-continuous clock signals. A spread-spectrum clock-signal generating unit generates a spread-spectrum clock signal by modulating a frequency spectrum of a clock signal generated by the clock-signal generating unit. A signal delaying unit generates a fixed delay unaffected by a spread spectrum from the spread-spectrum clock signal generated by the spread-spectrum clock-signal generating unit, and delays a phase of the spread-spectrum clock signal based on an amount of the fixed delay.

Abstract: A system renders print jobs via a marking engine. A raster image processor receives the job from the input module and renders it to one or more raster images. One or more contone image processors receive the one or more raster images to perform cross-channel image processing to render the raster images into a form compatible with the marking engine, wherein the output is partially sub-partitioned by color separation. An image refactoring and distribution network completes the sub-partitioning by separation of the rendered contone raster images by color separation and distributes each color sub-partition to a marker channel module specific to each color sub-partition. A marking engine receives the color sub-partitioned image data, marks the image onto a substrate and outputs a hardcopy of the image.

Abstract: A determining unit determines a color of a character. A color converting unit converts a chromatic color having a predetermined hue into the predetermined color and a chromatic color having a hue other than the predetermined hue and an achromatic color into a black color. A processing unit processes either one of a color character and a black character determined by the determining unit such that the color character having the chromatic color converted into the black color is relatively noticeable to the black character.

Abstract: There is a problem in that when magnification chromatic aberration correction is carried out, the difference in reproducibility of high-frequency components, depending on the spatial position, between a color for which position shift correction is not performed and a color for which position shift correction is performed may influence the image quality of an output image. In order to perform magnification chromatic aberration correction, high-frequency components, which are lost due to the position shift correction of a color for which position shift correction is carried out, are extracted from a color for which position shift correction is not carried out, and are added to the color for which position shift correction is carried out. Therefore, the high-frequency components are restored in a pseudo manner.

Abstract: An image formation system includes I storage units, an assignment unit that assigns to the storage units storage destinations of color component data forming a part of image data, J color component image formation units that form color component images of corresponding colors based on color component data stored in the storage units, and an image formation unit that forms an image of the image data based on the formed color component image, wherein the assignment unit includes a J-color assignment unit that assigns to the I storage units storage destinations of J sets of color component data forming a part of J-color image data, and an L-color assignment unit that assigns a storage destination of L sets of color component data forming a part of L-color image data to N storage units among the I storage units, and each of I, J, and N is a natural number greater than or equal to 2, L is a natural number greater than or equal to 1, L<J, and L<N?I.

Abstract: The method of identifying an effective pigment comprises: a first step of imaging a target effective pigment to obtain image data thereof; a second step of subjecting the obtained image data to background processing and extracting image data concerning a region containing one particle of the effective pigment as image data for processing; a third step of extracting image characteristic parameters from the image data for processing; and a fourth step of identifying the target effective pigment, based on the image characteristic parameters of the target effective pigment extracted in the third step, using a pre-prepared database that stores information on various kinds of effective pigments in such a manner as to correlate with the image characteristic parameters of various kinds of effective pigments extracted by conducting the second and third steps.

Abstract: A method is provided for extracting an edge included in a color image formed of first pixels expressed by color component values of three colors. The method includes: calculating a lightness value of the first pixel based on the color component values; determining which one of the low, medium, and high lightness regions, the calculate lightness value belongs to; generating an extraction image formed of second pixels corresponding to the first pixels; and extracting an edge based on the pixel value of the extraction image thus generated. For a first pixel whose lightness value belongs to the medium lightness region and the low or high lightness region, a pixel value is calculated from the color component values of three colors, and from the color component values excluding at least one color, respectively. Then, the edge is extracted based on the calculated pixel value of the extraction image.

Abstract: A system and method is provided for characterizing color separation misregistration associated with marking a substrate. The method includes providing an input image having a plurality of patches, each patch having a pattern using a first and second color; marking a substrate with a copy of the input image using a first and second color separation to correspond to the first and second colors, respectively; and measuring a color characteristic of markings of respective copied patches of the copied plurality of patches and generating corresponding colorimetric values. Misregistration of the first color separation markings relative to the second color separation markings is characterized based on the measured calorimetric values.

Abstract: A method is provided for characterizing color separation misregistration of a printer device using color separations of a color space for marking substrate. The method includes providing an input image including a pattern of patches including at least one measurement patch, each measurement patch having at least a first and second color separation of the color space, and marking a substrate in accordance with the input image for generating an output image having a marked pattern of patches which corresponds to the pattern of patches. Spectral reflectance of at least one respective patch of the marked patch pattern of the output image is measured and respective spectral reflectance values corresponding to the measuring are generated. Misregistration is characterized between the at least first and second color separations of each measurement patch of the at least one measurement patch based on the spectral reflectance values.

Abstract: An object of the present invention is to provide an image processor capable of generating an image from which a user-designated color component has been removed and performing a color/monochrome determination correctly. In order to complete the task, an image processor according to the present invention comprises a removal unit that removes a removal color part from a read image, and a determination unit that determines whether the read image from which the removal color part has been removed by the removal unit is a monochrome image or a color image.

Abstract: The present invention extends an entire reproducible gamut by generating color separation data effectively utilizing the particularly high saturation and lightness of a particular color ink. Color separation data uses three types of inks including a particular color ink red and basic color inks yellow and magenta at the maximum saturation point of a hue R. On a low-lightness side with respect to the maximum saturation point, a reproducible color space can be extended by adding a cyan ink or the like to the above inks. In a high-lightness are, the reproducible color space can be extended by using the particular color ink red. Further, the entire gamut of a low-lightness side of this hue can be extended.

Abstract: A color gamut data creating device includes a target plane determining unit. The measurement points are defined in a color space. The color space has an achromatic axis and an axis perpendicular to the achromatic axis. The target plane determining unit further determines a plurality of target planes. Each target plane has a fixed hue angle and including the chromatic axis. A difference between a maximum saturation at a hue angle of each target plane and a maximum saturation at a hue angle of another target plane that is adjacent to the each target plane is lower than a prescribed value. The locating unit that projects, on each target plane, those measurement points that are within a prescribed range relative to the subject target plane. The color gamut creating unit creates color gamut data indicative of a distribution range of the measurement points projected on each target plane.

Abstract: Acquiring enough brightness with flash and obtaining an image having a color close to a color which a human senses.

Abstract: In a color reading apparatus for successively reading respective red, green, and blue colors in each line while a document is continuously conveyed to a plurality of line sensor units arranged in a zigzag manner, the line sensor units are arranged with a distance equal to or shorter than a unit of line to prevent a color shift. When read data of the plurality of line sensor units in a conveying direction are to be combined, image data shifted by the number of lines corresponding to distances between the line sensor units in the conveying direction are set as first combination candidates. A color code and a line code are added to each of the data. Image data having the same color code and the same line code are combined. According to the image reading apparatus structured as described above, it is possible to obtain data capable of reproducing read data for each color on the same line without errors.

Abstract: In accordance with the teachings of the present disclosure, a system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.

Abstract: Color production with high chroma in a low lightness portion is realized by using an appropriate complementary color ink to a particular color ink reproducing the low lightness portion. More specially the device secondary color G-K is reproduced with ink of the pure color component composed of the color mixture of the particular color G ink and the basic color Y ink to tone the particular color G ink. In addition, as complementary color components, the particular color R ink and K ink are used. Thereby, the reproduction line is substantially linear from the device secondary color G point to the device K point. In color reproduction at the dark portion of the color on the G-K line, sufficient chroma can be obtained.

Abstract: An image is acquired including a red eye defect and non red eye defect regions having a red color. An initial segmentation of candidate redeye regions is performed. A location and orientation of one or more faces within the image are determined. The candidate redeye regions are analyzed based on the determined location and orientation of the one or more faces to determine a probability that each redeye region appears at a position of an eye. Any confirmed redeye regions having at least a certain threshold probability of being a false positive are removed as candidate redeye defect regions. The remaining redeye defect regions are corrected and a red eye corrected image is generated.

Abstract: A system and method for characterizing color separation misregistration of a multi-color printing system utilizing a broadband multi-channel scanning module, such as an RGB scanner, are provided. The system and method include generating a spectral reflectance data structure corresponding to a broadband multi-channel scanning module. The spectral reflectance data structure includes at least one parameter. The at least one parameter may correspond to the broadband multi-channel scanning module and/or a printing module. The system and method further provide for calibrating a spectral-based analysis module by utilizing the spectral reflectance data structure. The system and method also include characterizing color separation misregistration utilizing the calibrated spectral-based analysis module by examining at least one plurality-separation patch.

Abstract: Systems, apparatuses, and methods for defining an image in a handheld imaging translation device are described herein. The image may be defined as a plurality of color planes having a plurality of bits, the bits of each color plane stored in consecutive memory addresses, and the color planes separated by a consistent offset, such that each bit and its associated bits are equally separated by the consistent offset.

Abstract: In the case where an output value of a document reading section for at least any of R, G and B is out of a range between a first reference value and a second reference value due to a change in an output value of a reading device caused by an electrical noise, a change of supply voltage, etc. when a document is being read, a second color conversion table is created in accordance with the above change by expanding ranges in a first color conversion table, which ranges are around predetermined first and second reference values and included in regions of RGB color system associated respectively with predetermined tone values of Y, M and C. Using the second color conversion table thus obtained, a color conversion is carried out from the RGB color system into the YMC color system.

Abstract: An image processing device includes a determining unit that determines whether an intermediate parameter that is newly computed by an intermediate parameter computing unit or an intermediate parameter that is previously stored in an intermediate parameter storing unit is to be supplied to a color correcting unit depending upon an image forming condition. The color correcting unit performs color correction based on the intermediate parameter.

Abstract: The present invention provides a print module, an information processing device, a print system, a print unit, an ink supply unit, a print method and program, all capable of quickly and easily meeting demands for a print medium size change, particularly to increased sizes, while at the same time coping with demands for faster printing speed. To this end, this invention constructs the print heads (811) in the form of print modules (M) so that their ink systems and signal systems are independent among the print modules. Each print module is set with identity information for its identification.

Abstract: This disclosure provides methods, apparatus and systems to generate vector halftone data for rendering an image on an image output device. According to one aspect, a method generates vector halftone data as a function of contone pixel data for a given colorant at its nominal resolution and contone pixel data for the other colorants at a relatively lower resolution.

Abstract: A data divider divides N-dimensional digital image signals into higher-order bit signals and lower-order bit signals. Reference values corresponding to all combinations of the divided higher-order bit signals are divisionally stored in 2N?1 sub-memories without overlaps. The (N+1) reference values necessary for interpolation processing are read by a reference value reader at the same time.

Abstract: A system for capturing a color image, includes a two-dimensional array having first and second groups of pixels, pixels from the first group of pixels have narrower spectral photoresponses than pixels from the second group of pixels and the first group of pixels has individual pixels that have spectral photoresponses that correspond to a set of at least two colors; the placement of the first and second groups of pixels defining a pattern that has a minimal repeating unit including at least twelve pixels, and a plurality of non-overlapping cells wherein each cell has at least two pixels representing a specific color selected from the first group of pixels and a plurality of pixels selected from the second group of pixels; a structure for combining pixels of like color from at least two of the plurality of cells within the minimal repeating unit.

Abstract: What is disclosed is a novel system and method for adjusting the gray balance of a multifunction color marking device in order to change the device's neutral behavior to a desired level of acceptability. The gray balance aim curve is specified by: L*, L*(aim), a*(aim) and b*(aim), where L*(aim)=f1(L*), a*(aim)=f2(L*), and b*(aim)=f3(L*). After receiving the user-modified gray balance aim curve, the target color device constructs a 3-D N×N×N L*a*b* to L*a*b* pre-LUT to reflect the neutral aim change by transforming a neutral axis input of L*, a*=0 and b*=0 to L*(aim), a*(aim) and b*(aim). Colors further away from the neutral axis are shifted by a lesser amount. The pre-LUT is then concatenated with the current color LUT to produce an updated color LUT which is applied to the device to achieve the desired neutral behavior. The gray balance aim curve can also be based upon a pre-determined user preference.

Abstract: 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.

Abstract: A digital image acquisition device is for acquiring digital images including one or more preview images. A face detector analyzes the one or more preview images to ascertain information relating to candidate face regions therein. A speed-optimized filter produces a first set of candidate red-eye regions based on the candidate face region information provided by the face detector.

Abstract: In a case wherein a color separation table is prepared, color separation is provided, so that the density characteristic to be output is maintained, and the total colorant amount is not beyond the limit value of the total colorant amount. Further, the optimal color separation is performed while taking into account the colorant amount, and the colorant amount of a light color is adjusted in the entire color range to control granularity and consumption of the colorant amount. A color separation method comprising: a step of calculating the total colorant amount by employing a relationship between a total colorant amount limit value and a colorant amount, that includes a colorant amount for a colorant other than the dark colorant and the light colorant; a step of calculating a density; and a step of employing the total colorant amount and the density to calculate the colorant value signals.

Abstract: Systems and techniques for chromatic distortion reduction. Relative chromatic distortion information for an imaging system may be obtained, where the relative chromatic distortion information indicates relative displacement of a first color signal and a second color signal from a reference color signal in an image. The relative chromatic distortion information may be used to modify image data.

Abstract: An image forming apparatus is provided that holds counter information obtained by integrating a consumption of a consumable that depends on usage of service provided by the image forming apparatus. A log corresponding to the usage of the service is set in job log information with a synchronization flag set off. The log in the job log information, for which the synchronization flag is set off, is set on. The counter information and the job log information are output after the synchronization flag for the log having the synchronization flag set off has been set on.

Abstract: A four-line CCD sensor is structured by line sensors R, G, B in which color fillers are respectively disposed on surfaces of light receiving elements, and a line sensor BK at which no color filter is disposed. Amplitudes of signals which are outputted from the line sensors R, G, B at a time of reading a color document, and an amplitude of a signal which is outputted from the line sensor BK at a time of reading a monochrome document are adjusted so as to be substantially equal to one another. In a case in which a color document is read, outputs of the line sensors R, G, B are selectively provided, and in a case in which a monochrome document is read, output of the line sensor BK is selectively provided.