Abstract: A printer apparatus comprises one or more ports (2011 to 201M) for receiving one or more colorant units (INK1 to INKN), and a processing unit. The processing unit is adapted to determine which one or more colorant units (INK1 to INKN) have been loaded into the printer apparatus. The processing unit is adapted to retrieve colorant information from each loaded colorant unit (INK1 to INKN), and determine an ink-set configuration using the colorant information retrieved from each loaded colorant unit (INK1 to INKN). Operation of the printer apparatus is configured according to the determined colorant-set configuration.

Abstract: In an example, a method includes determining a plurality of print coverage vectors, each of the print coverage vectors specifying a common amount of a selected print agent. The method may further comprise determining a colorimetry provided by each of the print coverage vectors and dividing a range of colorimetries into partitions in a colorimetric space. For each of a plurality of the partitions, the method may include determining a characteristic of each print coverage vector resulting in a colorimetry within that partition and selecting a print coverage vector for that partition based on the determination. A color mapping resource may be determined based on the selected print coverage vectors.

Abstract: There is provided a non-transitory computer-readable medium storing application program executable by a processor of an information processing apparatus which communicates with a scanner having specific information. The specific information indicates whether the scanner is configured to generate a specific file for which specific processing is executable by a specific program. The application program, when executed by the processor, causes the information processing apparatus to: obtain an image read by the scanner; obtain the specific information from the scanner; and generate a file indicating the obtained image. In a case that the specific information is first information, the application program causes the information processing apparatus to generate the file with usable information embedded therein. In a case that the specific information is second information, the application program cause the information processing apparatus to generate the file without the usable information embedded therein.

Abstract: An image forming apparatus includes an image reader unit and a control unit. The image reader unit generates read data. The control unit generates output data of image data cropped from the read data. When cropping a plurality of image data, the control unit sets one side of the read data to a first reference side and sets another side perpendicular to the first reference side to a second reference side, and for each of the plurality of image data, the control unit detects a first distance between the first reference side and the image data in a direction parallel to the second reference side, and a second distance between the second reference side and the image data in a direction parallel to the first reference side, and sets an output order of the plurality of image data based on the first distances and the second distances.

Abstract: An image capturing unit includes a sensor unit that image-captures a predetermined area including a subject; and a reference chart unit that is arranged in the predetermined area and captured with the subject by the sensor unit.

Abstract: Devices and methods automatically detach a note sheet from a document to which the note sheet is detachably attached and scanning the note sheet separately from the note-sheet-detached document to yield digitalized copies of the document and note-sheet. A note display-processing unit involving the devices and methods processes the digitalized document copy and the digitalized note-sheet copy to generate note-embedded document data producing, when the note-embedded document data is displayed on a computer display, a digitalized document copy with a note-sheet-representing icon, added to the digitalized document copy at a predetermined position thereon, that causes the digitalized note-sheet copy to appear whenever a display-interactive cursor moves over the icon. The note sheet may be automatically reattached to the document in the note sheet's original position on the document.

Abstract: An image decoloring apparatus includes a reader configured to read an image on a sheet to acquire image data, a storage section configured to store the image data acquired by the reader, and a first heater configured to heat the sheet. The apparatus further includes a difference extractor configured to extract difference image data based on first image data read from the sheet before it is heated by the first heater and second image data read from the sheet after it is heated by the first heater. The apparatus additionally includes a setting section configured to set a password required to access the difference image data.

Abstract: According to examples, area coverage vectors for each pixel on each slice of a digital representation of an object may be determined and a two-dimensional halftone matrix including threshold values may be subdivided into a plurality of sub-matrices, each sub-matrix including threshold values of the halftone matrix in a respective value sub-range. In addition, for each of the slices, a sub-matrix of the plurality of sub-matrices may be selected and the area coverage vectors for the pixels in the slice may be halftoned using respective threshold values of the selected sub-matrix.

Abstract: A method for distinguishing a page set is presented. The method includes receiving multiple page sets. A first page or a last page of each page set marked with an identifier. The method also includes scanning a page of the multiple page sets. The method further includes determining whether the scanned page comprises the identifier and one or more of a false positive identifier or a color changed identifier. The method still further includes distinguishing the page set, corresponding to the scanned page, from other page sets of the multiple of page sets when the scanned page includes the identifier.

Abstract: A system is disclosed. The system at least one physical memory device to store ink estimation logic and one or more processors coupled with the at least one physical memory device, to execute the ink estimation logic to generate first estimated ink usage data for each of one or more color planes based one or more gray level histograms and one or more halftone designs, detect a change to a tone curve of one or more of the color planes, modify the gray level histograms and generate second estimated ink usage data for each of the color planes based on the modified gray level histograms, wherein each gray level histogram corresponds to one of the one or more color planes and each halftone design corresponds to one of the one or more color planes.

Abstract: Examples analyze a digital image to determine an amount of high-frequencies corresponding to each pixel of the digital image based at least in part on gradients corresponding to a pixel neighborhood of each pixel. Examples analyze the digital image to determine a degree of randomness for each pixel based at least in part on the corresponding gradients. Examples generate an activity mask for the digital image based at least in part on the amount of high-frequencies and the degree of randomness corresponding to each pixel. Examples process the pixels of the digital image by performing gray component replacement to generate a color transformed image based at least in part on the activity mask.

Abstract: An image forming method uses a memory, forms an image on a print medium using color materials of L colors, and includes: setting N groups associated for respective N objects including a plurality of scanning lines and reproduced with the color materials of the L colors; calculating a relative address that stores tone data representing a tone of one color material among the color materials of the L colors based on coordinates of a plurality of pixels forming the plurality of scanning lines to calculate L addresses separated by shifting the relative address using a predetermined offset address; and transmitting and receiving L tone data representing tones of respective L color materials for reproducing colors of the plurality of pixels forming the scanning lines by using the L addresses to/from the memory via L channels among M (M is an integer larger than N) communication channels.

Abstract: In some examples, a component for a printing device includes a memory device comprising a plurality of corrective data to produce a corresponding plurality of color tables each customized for a respective media type of a plurality of media types, wherein a respective corrective data of the plurality of corrective data corresponds to nodes of a reference color table for the printing device that is able to accept the plurality of media types for printing. The respective corrective data includes a plurality of residual values to transform the nodes of the reference color table to a customized color table for use with a selected media type of the plurality of media types.

Abstract: An output product producing method includes acquiring output information, specifying an output condition for an output section, converting the output information into a code having an error-correction amount corresponding to the output condition, and causing the output section to output an output product including the code under the output condition.

Abstract: An image processing apparatus that is capable of converting an original color image into a monochrome image to which color scheme intention of the original color image is reflected appropriately. An extraction unit extracts colors used for characters and figures in color data. A first determination unit determines one of the colors as a base color. A second determination unit determines another of the colors as an accent color. An application unit converts the color data into monochrome data by applying a predetermined gray to the base color determined and applying a gray that is distinguishable from the predetermined gray and has a density higher than the predetermined gray to the accent color.

Abstract: An image forming apparatus includes a transferor, a first detector to detect an image formed on the transferor, a second detector to detect an image formed on a recording medium, and circuitry. The circuitry is configured to generate first gradation correction data based on a detection result obtained by the first detector, generate second gradation correction data based on a detection result obtained by the second detector, and control gradation correction for the image formed on the recording medium using the first and second gradation correction data. Further, the circuitry is configured to prioritize one of the first and second gradation correction data based on at least one of a characteristic of the recording medium and a characteristic of the image in the gradation correction during consecutive printing in which images are consecutively formed on recording media.

Abstract: In some examples, dynamic threshold based error diffusion may include determining whether a pixel associated with a pattern to be printed includes a lighter tone or a darker tone compared to an adjacent pixel. In response to a determination that the pixel associated with the pattern to be printed includes the lighter tone or the darker tone compared to the adjacent pixel, a firing threshold may be respectively increased or decreased to respectively decrease or increase a likelihood of printing of the pattern.

Abstract: Disclosed is a method of processing data from an image scanner for reducing image artefacts. The image scanner comprises a first image sensor arranged to: record a first set of lines, the first set of lines comprising a plurality of pixels representing recorded intensities of a first colour, record a second set of lines, the second set of lines comprising a plurality of pixels representing recorded intensities of a second colour; and record a third set of lines, the third set of lines comprising a plurality of pixels representing recorded intensities of a third colour. The method comprises the steps of: processing at least two of the first, the second or the third set of lines to create a first combined set of lines and filtering said first combined set of lines to filter out image artefacts creating a first filtered combined set of lines.

Abstract: There are provided a printing system, a method of generating a halftone processing rule, a method of acquiring a characteristic parameter, image processing device and method, a halftone processing rule, a halftone image, a method of manufacturing a printed material, an ink jet printing system, and a program which are capable of reducing an operation load of a user and acquiring a halftone processing rule appropriate for the printing system. A characteristic parameter acquisition chart (100) including a pattern for acquiring characteristic parameters related to characteristics of the printing system is output, and the output characteristic parameter acquisition chart (100) is read by image reading means. The characteristic parameters are acquired by analyzing the read image of the characteristic parameter acquisition chart (100), and halftone processing rules that define the processing contents of halftone processes used in the printing system are generated based on the acquired characteristic parameters.

Abstract: According to an example, an apparatus may include a processor and a memory. The memory may have stored thereon machine readable instructions that may cause the processor to access an initial halftone image of a three-dimensional (3D) object, the initial halftone image being generated from a continuous tone image of the 3D object. The instructions may also cause the processor to iteratively modify voxel data for the initial halftone image to identify updated voxel data that more accurately corresponds to the continuous tone image than the initial halftone image and to generate halftone image printing data for the 3D object containing the updated voxel data.