Abstract: A color converter has a setting section, a determining section, and a converting section. The setting section sets the ratio between plural color rendering intents. The determining section determines a color conversion function for converting a first image signal in a first color space into a second image signal in a second color space different from the first color space, based on the ratio between the color rendering intents. The converting section converts the first image signal into the second image signal based on the color conversion function determined by the determining section.

Abstract: An image processing apparatus includes a characteristics acquisition unit that acquires some of color reproduction characteristics of additive color mixing applied in a display; and a transform method determination unit that determines a transform method from one color gamut of an input color space to another color gamut used by an output device, based on the color reproduction characteristics acquired by the characteristics acquisition unit.

Abstract: A color signal processing device includes a conversion unit that converts a first color signal into a second color signal. The second color signal is obtained by changing a color point, in a device independent color space, corresponding to a color of each color component of the first color signal by a distance corresponding to a reduction degree so that the color point, in the device independent color space, corresponding to the color of each color component of the first color signal approaches white along a locus, in the device independent color space, corresponding to each color component of the first color signal. The locus, in the device independent color space, corresponding to each color component is obtained by changing an amount of a coloring material that corresponds to each color component and is used in an output device.

Abstract: A color gamut forming apparatus includes a reference color acquiring unit and a converted color gamut forming unit. The reference color acquiring unit sets at least a saturated color, which is reproducible on a contour of an input color gamut, as a reference input color and acquires a reference output color which is a color obtained by converting the input reference color into a color being reproducible in an output color gamut. The converted color gamut forming unit forms, in the output color gamut, a converted color gamut in which the reference output color corresponding to the saturated color on the contour of the input color gamut is a convex point.

Abstract: An image processing device performs a color process to a color image signal. The image processing device includes a profile designating section that designates a profile describing color reproducibility of a standard recording medium that is a target of color conversion, a recording medium designating section that designates a recording medium that is to be actually used, and color conversion section that performs color conversion according to the recording medium designated by the recording medium designating section and the profile designated by the profile designating section.

Abstract: There is provided an image file creation device including: an obtaining section that obtains image data forming a color image, conversion conditions for converting the image data into color data of a device-independent color space, and basic viewing conditions for viewing the color image; an input section that inputs target viewing conditions for viewing a formed image that is formed by using the image data; and a creation section that creates an image file containing a main data region for storing the image data, the conversion conditions and the basic viewing conditions, and a sub-data region for storing the target viewing conditions.

Abstract: In an image processing apparatus, a first conversion unit converts, on the basis of an input device profile, input data into first device-independent data expressed by a color space that is independent of an apparatus. A storage unit stores plural conversion profiles for converting using a color appearance model in the color space that is independent of the apparatus in correspondence with plural device characteristics that are dependent on apparatuses. A selection unit selects a conversion profile corresponding to characteristics of the input device, characteristics of an output device, observation conditions of the input data and the output data. A second conversion unit converts, on basis of the selected conversion profile, the first device-independent data into second device-independent data. A third conversion unit converts the second device-independent data into the output data on the basis of an output device profile.

Abstract: A color conversion device is provided including: a setting unit that sets a conversion mode, based on characteristics of a source color region related to an input image signal in a color space, for converting the input image signal to an image signal that falls within at least one color region from a plurality of color regions that have been defined in the color space; and a conversion unit that converts the input image signal in accordance with the conversion mode into the image signal that falls within the color region.

Abstract: There is provided a color conversion device, including: an analyzer that analyzes color reproduction characteristics of a source device based on a source profile, and analyzes color reproduction characteristics of a destination device based on a destination profile; a determination section that, based on the result of the analysis, determines a color conversion function for converting an input image signal to an output image signal; and a converter that converts the input image signal to the output image signal, based on the determined color conversion function.

Abstract: A color conversion coefficient creating device including: a setting unit that sets a ratio between plural color rendering intents; an evaluating unit that evaluates characteristics of an input device and an output device; and a creating unit that creates a color conversion coefficient. The creating unit creates a color conversion coefficient for converting a first image signal in a first color space input from the input device into a second image signal for the output device in a second color space different from the first color space, according to the ratio between the color rendering intents and the evaluation result of the evaluating unit.

Abstract: An image forming device that carries out color reproduction using plural of color materials having: a setting unit setting a color material curbing mode that curbs an amount of color material; and a color information inputting unit that inputs input color information. The image forming device further has a converting unit that, when the color material curbing mode is set by the setting unit, converts the input color information inputted by the color information inputting unit into output color information in a color material curbing region, on the basis of correspondence relationships that are set in advance such that a region that is color-reproducible by the image forming device is kept within the color material curbing region that is narrowed such that an amount of the color material is curbed.

Abstract: There is provided a color converting device, wherein base data regulates a plurality of color charts regarding a first color value on a first color space and a second color value on a second color space that represent colors of a specified color chart and a color prediction model that estimates and calculates the relation between the first color value and the second color value based on the base data are inputted or designated, and the inputted or designated base data and color prediction model are used and color conversion conditions for converting the first color value to the second color value are generated, the device performing color conversion of inputted image data based on the generated color conversion conditions and provided with a determining unit that determines with calculation processing whether the inputted or designated base data is base data that can generate suitable color conversion conditions when the base data is combined with the inputted or designated color prediction model.

Abstract: A color converter has a setting section, a determining section, and a converting section. The setting section sets the ratio between plural color rendering intents. The determining section determines a color conversion function for converting a first image signal in a first color space into a second image signal in a second color space different from the first color space, based on the ratio between the color rendering intents. The converting section converts the first image signal into the second image signal based on the color conversion function determined by the determining section.

Abstract: An image processing device includes a conversion section that converts an input image signal to an out put image signal within a color gamut of an output device by a predetermined conversion function, a storage section that stores a target value for a predetermined color and a predetermined standard gradation characteristic, and a determination section that determines the conversion function such that a gradation characteristic of the output image signal accords with at least a portion of the standard gradation characteristic. The conversion function is determined on the basis of the input signal, the target value for the predetermined color and the predetermined standard gradation characteristic.

Abstract: An image forming apparatus includes an input unit that receives input of area designation information designating an image area to be subjected to color adjustment and adjustment amount information designating an adjustment amount of color adjustment, a color adjustment unit that performs color adjustment on rasterized image data in correspondence with the inputted area designation information and the adjustment amount information, and an image forming unit that forms an output image based on the image data subjected to the color adjustment by the color adjustment unit.

Abstract: An image forming apparatus includes a patch data generator that generates image data of a color patch using a color value substantially equivalent to the color patch as a color sample, and an image forming unit that forms a color patch on a recording medium based on the image data of the color patch generated by the patch data generator.

Abstract: An image processing apparatus for color converting an input image signal to an output image signal includes a multidimensional look-up table and a judgment unit. The multidimensional look-up table correlates a signal value of the output image signal corresponding to a signal value of the input image signal with a position on a coordinate axis in a predetermined color space and holds it, secures a holding area for holding a specific color signal value in an area on the coordinate axis, the area is not taken by the signal value of the input image signal. The judgment unit judges whether the signal value of the input image signal is a specific color or not. When the input image signal is the specific color, address conversion is performed on the input image signal, and the specific color signal value in the holding area is acquired based on the multidimensional look-up table.

Abstract: An image processing device performs a color process to a color image signal. The image processing device includes a profile designating section that designates a profile describing color reproducibility of a standard recording medium that is a target of color conversion, a recording medium designating section that designates a recording medium that is to be actually used, and color conversion section that performs color conversion according to the recording medium designated by the recording medium designating section and the profile designated by the profile designating section.

Abstract: A heat developable photosensitive material capable of forming fogless and table images of high contrast which comprises at least an organic silver salt, a halide and at least one member selected from sulfur and sulfur compounds having a moiety of ##STR1##