A color processing apparatus includes a first subtracting unit, a second subtracting unit, and an output unit. The first subtracting unit subtracts color values of CMY color signals corresponding to an achromatic color value from color values of input CMY color signals in accordance with replacement to the achromatic color value. The second subtracting unit subtracts color values of CMY color signals corresponding to a color value of an additional color signal different from the CMY color signals from the color values of the CMY color signals after the subtraction by the first subtracting unit in accordance with replacement to the color value of the additional color signal. The output unit multiplies the color values of the CMY color signals after the subtraction by the second subtracting unit and the color value of the additional color signal by N (N>1) and subsequently outputs the color signals.

A method and system for an auto-color detection and color transformation is provided including with at least one image signal processor, splitting an input image into a plurality of strips on a page. Each strip is composed of a plurality of pixels. The presence of color data within a strip is determined. Based on a determination that no color data is present within the strip both a monochrome rendering and a simple color rendering of this neutral strip are generated. Based on a determination that color data is present within a strip, the entire page is declared a color page and either one of a simple color rendering (via 1D look up tables) or a complex color rendering (via tetrahedral interpolation) of the strip is generated. Thereafter, only color renderings of subsequent strips is performed for the corresponding page.

In an image processing device, a controller is configured to perform: selecting; generating; and outputting. The selecting selects a target partial image one by one from a plurality of partial images. The target partial image is represented by target partial image data. The generating generates partial print data for a partial print by executing an image process on the target partial image data. The partial print forms the target partial image while moving a print head in a printing direction. The partial print forms the target partial image while moving a print head in a printing direction. The image process includes a color conversion process. The color conversion process is executed on the target partial image data using one of a first profile and a second profile selected in accordance with the printing direction set for the partial print. The outputting outputs the partial print data to the printer.

There are provided an apparatus and method capable of displaying HDR image on SDR display apparatus without large deterioration in image quality. The apparatus has a display control unit for converting an HDR image signal and generating an output signal into a display unit. The display control unit converts an input HDR image signal in case the HDR image signal is input, and generates and outputs a converted HDR signal according to a correction curve with an I/O characteristic reverse to a curve corresponding to an I/O characteristic of an SDR display unit to the display unit. In case the curve corresponding to the I/O characteristic of the SDR display unit is a 2.2-th power curve, the display control unit converts the input HDR image signal, and generates and outputs a converted HDR signal with I/O characteristic according to a (1/2.2)-th power curve to the display unit.

There are provided an apparatus and method capable of displaying HDR image on SDR display apparatus without large deterioration in image quality. The apparatus has a display control unit for converting an HDR image signal and generating an output signal into a display unit. The display control unit converts an input HDR image signal in case the HDR image signal is input, and generates and outputs a converted HDR signal according to a correction curve with an I/O characteristic reverse to a curve corresponding to an I/O characteristic of an SDR display unit to the display unit. In case the curve corresponding to the I/O characteristic of the SDR display unit is a 2.2-th power curve, the display control unit converts the input HDR image signal, and generates and outputs a converted HDR signal with I/O characteristic according to a (1/2.2)-th power curve to the display unit.

An image-processing device that is easily applicable even in a case where a subject is moving, and that generates an image having a suitable stereoscopic effect. An image-processing device (101) includes: a dark-part pixel extraction unit (107) that extracts one or more dark-part pixels; a dark-part pixel correction unit (108) that generates a correction image; a dark-part model generation unit (109) that generates a dark-part model on the basis of the dark-part pixels; and an image generation unit (110) that gives dark-part pixels constituting the dark-part model to the correction image.

An image-processing device that is easily applicable even in a case where a subject is moving, and that generates an image having a suitable stereoscopic effect. An image-processing device (101) includes: a dark-part pixel extraction unit (107) that extracts one or more dark-part pixels; a dark-part pixel correction unit (108) that generates a correction image; a dark-part model generation unit (109) that generates a dark-part model on the basis of the dark-part pixels; and an image generation unit (110) that gives dark-part pixels constituting the dark-part model to the correction image.

In an example, a method includes receiving a first data model of an object to be generated in additive manufacturing, at a processor. Using the processor, a second data model may be determined. Determining the second data model may include generating for each of plurality of contiguous, non-overlapping sub-volumes of a volume containing the object, a sub-volume octree characterising the sub-volume and having a root node. Determining the second data model may further include generating a volume octree characterising the volume containing the object, the volume octree characterising in its lowest nodes the root nodes of the sub-volume octrees.

An image processing method includes: (a) displaying a plurality of candidate image processes to be performed on image data, the plurality of candidate image processes including a color modification process; (b) receiving an instruction indicating the color modification process selected from among the plurality of candidate image processes; (c) displaying a display image corresponding to the image data on the display; (d) designating a display image; and (e) displaying a processed display image that represents a result of the selected color modification process performed on the image data corresponding to the designated display image before the selected color modification process on the image data corresponding to the designated display image is performed.

An image processing method includes: (a) displaying a plurality of candidate image processes to be performed on image data, the plurality of candidate image processes including a color modification process; (b) receiving an instruction indicating the color modification process selected from among the plurality of candidate image processes; (c) displaying a display image corresponding to the image data on the display; (d) designating a display image; and (e) displaying a processed display image that represents a result of the selected color modification process performed on the image data corresponding to the designated display image before the selected color modification process on the image data corresponding to the designated display image is performed.