Patent ID: 7710607

Claim:
An information processing method for generating an N-dimension look-up table (N≧2) used in conversion processing of input image data which has a first value range, comprising: an acquiring step of acquiring a second value range of the input image data within the first value range for every channel corresponding to a respective dimension of the N-dimension look-up table by analyzing the input image data to be processed; a determining step of determining with a processor an input value range of each dimension of the N-dimension look-up table based upon the second value range acquired at said acquiring step; an arranging step of arranging with a processor a grid width of a predetermined number of grid points in the input value range determined at said determining step with regard to each dimension of the N-dimension look-up table; and a setting step of setting with a processor an output value of each grid point, which has been arranged at said arranging step, based upon image processing to be executed.