METHOD AND DEVICE FOR CONVERTING COLOR

摘要

PROBLEM TO BE SOLVED: To provide color conversion method and device capable of improving the accuracy of color conversion while suppressing the increase of capacity for storing a multi-dimensional LUT. SOLUTION: The color conversion method for describing the relation of chrominance signal values obtained before and after conversion and performing color conversion by using the LUT and interpolation converts colors by calculating each output value from the grating point of a main multi-dimensional LUT in an area where there is no sub-multi-dimensional LUT and from the grating point of the sub-multi-dimensional LUT in an area where there is the sub-multi- dimensional LUT by using the main multi-dimensional LUT for dividing a range including the chrominance signal value of an input and storing an output value corresponding to the input value of the grating point and the sub-multi- dimensional LUT for dividing an area surrounded by the grating points of the main multi-dimensional LUT and storing an output value corresponding to the input of the grating point and the color conversion device is provided with means suitable for the method.