Patent ID: 7982910

Claim:
An image processing apparatus comprising: a storage section that holds characteristic data for acquiring a coordinate in a predetermined designated color space from a controllable primary-color intensity in an output device outputting an image; a predicted output value calculating section that calculates a predicted coordinate in said predetermined designated color space from a temporal primary-color intensity by using said characteristic data held at said storage section; an error calculating section that calculates an error from a difference between the coordinate to be outputted in said predetermined designated color space and said predicted coordinate; a differential coefficient matrix creating section that calculates a partial differential coefficient of said predicted coordinate value at said temporal primary-color intensity, and arranges the calculated partial differential coefficient into a square matrix to create a differential coefficient matrix, by using said characteristic data held in said storage section; an inverse matrix calculating section that calculates an inverse matrix of said differential coefficient matrix calculated at said differential coefficient matrix creating section; a primary-color intensity correction amount calculating section that calculates a corrected primary-color intensity by performing a primary conversion to the difference between said coordinate to be outputted and said predicted coordinate with said inverse matrix defined as a conversion matrix; and a primary-color intensity correction section that calculates an output primary-color intensity by adding or subtracting to or from said temporal primary-color intensity said corrected primary-color intensity calculated at said primary-color intensity correction amount calculating section.