Patent ID: 8982417
Filing Date: 2015-03-17
Classification: H04N

Abstract:
1. An image processing apparatus comprising: a color conversion processing unit configured to perform color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value, wherein the tentative output color value includes a combination of color component values, and wherein the color component values correspond to a set of predetermined color components; a modulation difference creating unit configured to create a plurality of modulation differences, wherein each modulation difference includes a combination of color component values that correspond to the set of predetermined color components, and wherein each color component value of the modulation difference is obtained by either setting or not setting the color component value as a value equivalent to a minimum resolution of the tentative output color value; a color value modulating unit configured to perform modulation on the tentative output color value by, for each predetermined color component, adding to the color component value of the tentative output color value or subtracting from the color component value of the tentative output color value a corresponding color component value of a particular modulation difference, wherein the particular modulation difference is selected at random from the plurality of modulation differences; and an output unit configured to output the target image according to the modulated tentative output color value.