A color conversion correction data generation device includes circuitry that acquires first chromaticity values obtained from conversion target image data and second chromaticity values of sample image data, the conversion target image data being image data to be subjected to color conversion, the sample image data being obtained by reading a printed sample; curve-fits chromaticity value correspondence data to generate color conversion correction data, the chromaticity value correspondence data being data in which the acquired first chromaticity values and the acquired second chromaticity values are associated with each other; and outputs the color conversion correction data for correcting image data obtained by subjecting the conversion target image data to the color conversion.

A method includes obtaining first color information for each of a plurality of first samples of a first target color with a color measurement device connected to a computing device including a display. A digital color image of at least one first target color is displayed on the display. An offset value for each first target color is determined such that the digital color image of each first target color matches the corresponding first target color on each of the first samples. A second sample including a second target color is scanned to obtain second color information. A processor of the computing device determines, using the offset values of the first target colors, an interpolated offset for the display such that the digital image of the second target color matches the second tar get color.

A method and device for adjusting white balance and non-transitory computer readable storage medium are provided. The method is applied to a terminal including at least two cameras of different types and the method includes that whether a present capturing environmental parameter satisfies a first predetermined condition is determined while a first camera of the at least two cameras is performing a capturing operation; responsive to a determination that the present capturing environmental parameter satisfies the first predetermined condition, a second camera of the at least two cameras is pre-started while an image captured by the first camera is being displayed on a display of the terminal; a target white balance gain value corresponding to the second camera is determined according to an image presently captured fey the second camera; and after the second camera is started, the white balance is adjusted on the image captured by the second camera according to the target white balance gain value.

An image processing system includes a server to control a plurality of processes performable in the image processing system, a first image forming apparatus communicable with the server, and a second image forming apparatus communicable with the server. The server includes a first memory to store first image processing data, and a first processor to generate first image drawing information based on the first image processing data. The second image forming apparatus includes a second memory to store second image processing data, a second processor to generate second image drawing information based on the second image processing data, and a print engine to perform the image forming operation of the second image forming apparatus based on the second image drawing information.

Example implementations relate to cross-calibration of imagers. For example, cross-calibration of imagers can include modeling a response of each of a plurality of imagers to a color sample, modeling a response of a composite the a plurality of imagers to the color sample based on the modeled response of each of the plurality of imagers to the color sample, generating generate a cross-calibration of the modeled response of each of the plurality of imagers to the modeled response of the composite of the plurality of imagers, and generating a calibration of the modeled response of the composite of the plurality of imagers to a response of a reference imager.

Systems and methods are provided for selectively qualifying printers for printing incoming jobs, based on an amount of colors within the job that the printers can reproduce. One embodiment is a system that includes an interface and a memory storing a print job defined in a job color space. The system also includes a controller that identifies colors specified by print data in the print job, determines coordinates of the colors in a perceptual color space, selects a printer, determines boundaries of a color gamut of the printer in the perceptual color space, and determines an amount of the colors that the printer is capable of reproducing. When the amount is greater than a threshold, the controller qualifies the printer for printing the print job. When the amount is less than the threshold, the controller disqualifies the printer from printing the print job.

An apparatus includes a plurality of cameras and a circuit. The cameras may be mounted on a vehicle and configured to generate a plurality of initial video signals of a scene outside of the vehicle. A plurality of fields of view of adjoining ones of the cameras may spatially overlap each other. The circuit may be configured to (i) store calibration values of the cameras generated during a calibration process, (ii) modify at least one of the initial video signals by applying the calibration values and (iii) generate a final video signal suitable to display to a user of the vehicle by stitching together the initial video signals. The calibration values may be used by the circuit to generate approximately continuous brightness within the scene in the final video signal.

An example method of setting ink limits for a printing system is described. The method involves printing a first set of color ramps. Each color ramp has test areas which are printed based different Neugebauer Primary Area Coverage (NPac) vectors. A test area for each color ramp is indicated that meets an image quality metric and Neugebauer Primary ink use limits are set based on these test areas. A second set of color ramps, for combinations of the set of available Neugebauer Primaries, is then printed, The test areas for each ramp are defined by monotonically-varying vector element values for one Neugebauer Primary in a combination and the second set of ramps are defined by monotonically-varying vector element values across said ramps for another Neugebauer Primary in a the combination. Test areas are then indicated again for the second set of color ramps to set ink use limits for the printing system.

An image processing device includes: a first color conversion processor configured to perform first color conversion processing on image data; a second color conversion processor configured to perform second color conversion processing on the image data; a coefficient calculator configured to calculate a coefficient indicating a blend ratio between an output of the first color conversion processor and an output of the second color conversion processor; and a blend processor configured to blend the output of the first color conversion processor and the output of the second color conversion processor based on the ratio indicated by the coefficient, wherein the coefficient calculator calculates a position on an xy chromaticity diagram of a color indicated by each pixel in image data processed by the first color conversion processor to determine the coefficient based on a distance from the calculated position to a boundary of a color gamut.

A color management system includes an information processing apparatus for managing each of a plurality of print sites each including a printing apparatus and manages colors of an image printed by the printing. The information processing apparatus notifies the printing apparatus of a change of a setting of a color management setting. The printing apparatus prints an image in accordance with the color management setting and measures the printed image, and determines whether the measured result of the colorimetric measurement satisfies a preset criterion. If the criterion is not satisfied, the printing apparatus instructs to execute color adjustment processing, and if the change of the setting includes a change concerning a first setting, determines whether printing by the change of the setting is possible, and if the printing is not possible, makes a warning.