摘要:
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.
摘要:
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.
摘要:
A color processing device includes a calculating unit that calculates hues in a device-dependent color space and hues in a device-independent color space of plural reproduction colors that are positioned on an input color gamut boundary and that have different hues, a deriving unit that calculates hues of corresponding colors in which a change in at least one of lightness and chrome caused by color gamut mapping performed in the device-independent color space is smaller than a change caused by the color gamut mapping performed on the reproduction colors, thereby deriving a correspondence between the hues in the device-dependent color space and the hues of the corresponding colors in the device-independent color space, a hue correcting unit that calculates hues in the device-dependent color space from input colors, thereby correcting the input colors, and a color gamut mapping unit that performs the color gamut mapping.
摘要:
A color processing apparatus includes a generating unit that generates correction information to a second white point from luminance information of a first white point, which is a white point of color information of a given processing target, and luminance information of a target white point, and a color correcting unit that performs a color correcting process on the color information of the processing target using the correction information to the second white point generated by the generating unit.
摘要:
A color processing device includes a color range conversion component, a control component and a color conversion and clipping component. The color range conversion component performs a color range conversion of input color signals in accordance with a specified color range conversion condition. The control component excludes from objects of the color range conversion by the color range conversion component a color value, of the input color signals, of which a position in a predetermined color space is outside a color reproduction range and which satisfies a predetermined condition. The color conversion and clipping component, after a color space conversion, applies clipping to a color value that falls outside the color reproduction range of the designated device in the color space dependent on the designated device, including rounding off such that the color value falls in the color reproduction range.
摘要:
A color processing apparatus includes a generating unit that generates correction information to a second white point from luminance information of a first white point, which is a white point of color information of a given processing target, and luminance information of a target white point, and a color correcting unit that performs a color correcting process on the color information of the processing target using the correction information to the second white point generated by the generating unit.
摘要:
A color processing apparatus includes an obtaining unit that obtains a first color signal from outside, a converting unit that converts the first color signal obtained by the obtaining unit into a second color signal based on a viewing condition, and a generating unit that generates a third color signal on the basis of the first color signal obtained by the obtaining unit and the second color signal obtained through conversion performed by the converting unit, the third color signal being an input signal that is used for a color gamut mapping process of performing mapping to a color gamut of an output device.
摘要:
A color conversion device for color-converting an input image signal in an input color reproduction region of a source device, in a predetermined color space, by mapping the input image signal into an output color reproduction region of a destination device in the predetermined color space, comprising: a calculation portion for calculating a mapping destination in the output color reproduction region of a pre-specified characteristic point in the input color reproduction region; a correction portion for correcting the output color reproduction region such that a region including a saturation higher than the calculated mapping destination is eliminated; and a mapping portion for mapping the input image signal into the corrected output color reproduction region, is provided.
摘要:
A color processing apparatus determines, based on output color gamut information, the color gamut conversion condition for converting the image data so that the color gamut of image data on the predetermined color space may fall within the output color gamut, converts the color gamut of input image data according to the set color gamut conversion condition, determines the limiting condition of the color gamut conversion, changes the color value of the specified color so that the color value of the specified color out of the input image data may be converted into the color corresponding to the output satisfying the limiting condition, and pre-processes so as to change the color value other than the color value of the specified color out of the input image data according to the relation between the color value before change of the specified color and the color value after change.
摘要:
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.