Abstract: An image processing apparatus includes an attribute image generation part that analyzes image data of an original image and generates image data of an attribute image for each pixel, the attribute image having a first attribute value, a compression image generation part that generates image data of a first compression image that includes a compression image of the first part image and image data of a second compression image, and a format part that generates, based on the image data of the attribute image, image data that shows the first attribute value for each pixel as selection data being used to select a pixel value of each pixel, and generates data in a multilayer data format that includes the selection data, the image data of the first compression image and the image data of the second compression image.

Abstract: An image processing apparatus includes an attribute image generation part that analyses image data of an original image and generates image data of an attribute image for each pixel, the attribute image having a first attribute value, a compression image generation part that generates image data of a first compression image that includes a compression image of the first part image and image data of a second compression image, and a format part that generates, based on the image data of the attribute image, image data that shows the first attribute value for each pixel as selection data being used to select a pixel value of each pixel, and generates data in a multilayer data format that includes the selection data, the image data of the first compression image and the image data of the second compression image.

Abstract: An image processing device for converting input image data in input color space into output image data in output color space comprises an input unit configured to input a plurality of input pixel signals comprising the input image data, a designation unit configured to designate an achromatic condition for pixels corresponding to the plurality of input pixel signals, and an achromatic judgment unit configured to judge whether or not each of the plurality of input pixel signals input by the input unit satisfies the achromatic condition, wherein the achromatic judgment unit judges that a pixel which corresponds to a particular input pixel signal is an achromatic pixel where the particular input pixel signal satisfies the achromatic condition.

Abstract: An image processing device includes a displaying unit that reads and displays an image; a base color region designator that designates a base color region of the image displayed on the displaying unit; a non-base color region designator that designates a non-base color region of the image displayed on the displaying unit; and a base eliminator that executes a base elimination of the image based on the base color region designated by the base color region designator and the non-base color region designated by the non-base color region designator.

Abstract: An image processing apparatus for measuring concentration of concentration patterns by optical sensors and correcting image information on the basis of a correction value obtained on the basis of measured concentration values has: a measured concentration value obtaining unit which measures the concentration in different concentration patterns by the optical sensors and obtains the measured concentration values; an estimation value obtaining unit which estimates original concentration by an independent component analysis on the basis of the obtained measured concentration values and obtains an estimation value; and a correction value obtaining unit which obtains the correction value for allowing the measured concentration value to approach the obtained estimation value. An influence of color noises is reduced, thereby correcting an image.

Abstract: An image processing device includes a displaying unit that reads and displays an image; a base color region designator that designates a base color region of the image displayed on the displaying unit; a non-base color region designator that designates a non-base color region of the image displayed on the displaying unit; and a base eliminator that executes a base elimination of the image based on the base color region designated by the base color region designator and the non-base color region designated by the non-base color region designator.

Abstract: An image processing device for converting input image data in input color space into output image data in output color space comprises an input unit configured to input a plurality of input pixel signals comprising the input image data, a designation unit configured to designate an achromatic condition for pixels corresponding to the plurality of input pixel signals, and an achromatic judgment unit configured to judge whether or not each of the plurality of input pixel signals input by the input unit satisfies the achromatic condition, wherein the achromatic judgment unit judges that a pixel which corresponds to a particular input pixel signal is an achromatic pixel where the particular input pixel signal satisfies the achromatic condition.

Abstract: An image processing apparatus for measuring concentration of concentration patterns by optical sensors and correcting image information on the basis of a correction value obtained on the basis of measured concentration values has: a measured concentration value obtaining unit which measures the concentration in different concentration patterns by the optical sensors and obtains the measured concentration values; an estimation value obtaining unit which estimates original concentration by an independent component analysis on the basis of the obtained measured concentration values and obtains an estimation value; and a correction value obtaining unit which obtains the correction value for allowing the measured concentration value to approach the obtained estimation value. An influence of color noises is reduced, thereby correcting an image.