H04N1/6097

METHOD OF COLOR MAPPING OF OLIGOCHROMATIC PATTERNS
20210373817 · 2021-12-02 ·

A method of color mapping color values of an oligochromatic pattern comprising the following steps: determining an image-gamut, in a N-dimensional device independent color system (ND-DICS), of said oligochromatic pattern; wherein said image-gamut comprises said color values of said oligochromatic pattern; and determining a skeleton (500) of said image-gamut; and performing an adaption on said skeleton (500) in said ND-DICS by a set of N-dimensional-transforming steps (30) and determining for points of said skeleton (500), a path in said ND-DICS that corresponds to said adaption; and color mapping said color values, of said oligochromatic pattern, based on said determined paths (35) of said points of said skeleton (500).

Printing system, method of generating halftone processing rule, method of acquiring characteristic parameter, image processing device, image processing method, halftone processing rule, halftone image, method of manufacturing printed material, inkjet printing system, and program
11375082 · 2022-06-28 · ·

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 including a pattern for acquiring characteristic parameters related to characteristics of the printing system is output, and the output characteristic parameter acquisition chart is read by image reading means. The characteristic parameters are acquired by analyzing the read image of the characteristic parameter acquisition chart, 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.

Information processing device and computer readable medium
11368605 · 2022-06-21 · ·

An information processing device includes a memory and a processor configured to instruct an image output unit to output a colorimetric pattern including plural test images, the image output unit being configured to output, onto a recording medium, an image based on image data processed by an image processing unit, and notify, based on a difference between a measured value obtained by measuring a color of each test image in the colorimetric pattern output by the image output unit and a target value determined according to characteristics of the recording medium used for outputting the image, whether resetting is to be performed in relation to the image processing unit or be performed in relation to the image output unit.

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM
20220189003 · 2022-06-16 ·

An image processing apparatus includes an acquisition unit configured to acquire a reference image serving as a reference printing result and a target image serving as a printing result to be inspected, a correction unit configured to correct the target image based on a paper white area of each of the reference image and the target image so that a paper white color of the paper white area of the target image matches a paper white color of the paper white area of the reference image, wherein the paper white area is determined based on a positional displacement between the reference image and the target image, and an inspection unit configured to inspect the printing result by comparing the corrected target image with the reference image.

Methods and printing system for multi-tier color management

A color printing system uses color printing management tiers to control color printing resources at a printing device. The color printing management tiers include a media type color management tier, an ink limited calibration tier, and a calibration and ICC profile creation tier. A print job includes a parameter that is used to select the management tier for color conversion operations for the print job. The parameter can include an attribute or a media type for the print job. The applicable tone reproduction curve (TRC) or ICC profile is retrieved according to the selected management tier. The TRC or ICC profile is adjusted according to an input applicable to the respective management tier.

Non-transitory computer-readable medium storing computer-readable instructions that cause processor of print image control device to set print position, print image control device that sets print position, and control method of print image control device that sets print position

Provided are a non-transitory computer-readable medium, a print image control device, and a control method of the print image control device capable of reducing time required for an operation to adjust a position of a print image, and of improving productivity. A CPU performs part specification command input processing in which a command is input to specify a part of a photographic image captured by a camera, characteristic identification processing that identifies a characteristic of fabric on the basis of the command input by the part specification command input processing, generated graphic generation processing that generates a generated graphic relating to the characteristic identified by the characteristic identification processing, and display control processing that controls a display such that the generated graphic generated by the generated graphic generation processing is displayed along with the photographic image and a print image.

Apparatus and image forming method for performing gradation correction on an image using generated gradation correction data

On a recording sheet of a first size, an image combined with gradation patches of a plurality of colors is printed, on a recording sheet of a second size smaller than the first size, images combined with the gradation patches of the plurality of colors are divided and printed into a plurality of recording sheets, color measurement is performed on each of the gradation patches, and gradation correction data is generated.

TRANSFORM MAP AT PRINTER CARTRIDGE
20220169031 · 2022-06-02 ·

A transform wrapper is stored on a memory device and the memory device may be included in a printer cartridge. The transform wrapper may dynamically build a transform map for a printer based on metadata stored at the memory device. The metadata may indicate at least one of a type of depositing material, transform map, print media and printer.

PRINTING APPARATUS, PRINTING SYSTEM, INFORMATION PROCESSING APPARATUS AND MEDIUM
20220171582 · 2022-06-02 ·

A printing apparatus is provided. The printing apparatus comprises a storage that stores a table that associates a type of a print medium with an output profile; and a processor that performs, for each page included in a print job, color conversion using an output profile for a page for which an output profile is set in the print job, and performing color conversion using an output profile associated with the type of the print medium set for the page by referring to the table for a page for which an output profile is not set in the print job, and for executing printing.

Method for building a security image by multiplexing color images

A method for building a security image for a security structure of a security document from multiplexing color images, including selecting a marking method capable of producing sets of colors on the security document comprising different colors that can be displayed according to illumination/observation modes of the security structure, establishing a plurality of color sets that can be displayed by the security structure in a plurality of the different illumination/observation modes, distributing the color sets in a plurality of groups of color sets, establishing combinations of groups of color sets having at least one color set in common across the number of different illumination/observation modes, selecting a combination of a group of color sets based on the number of desired illumination/observation modes and the number of colors per color image, and determining the color images to multiplex by means of the combination of the group of color sets selected.