COLOR GAMUT CONVERSION DEVICE, DIGITAL CAMERA, COLOR GAMUT CONVERSION PROGRAM, AND COLOR GAMUT CONVERSION METHOD

摘要

PROBLEM TO BE SOLVED: To reduce required storage capacity.SOLUTION: A color gamut conversion device 100 is a color gamut conversion device that performs color gamut conversion for converting a color gamut of an input image into a color gamut of an output color space for outputting the input image, and includes: strength determination means 104 for determining compression strength of a color gamut in color gamut conversion; threshold determination means 104 for determining a first threshold according to the compression strength of a color gamut; feature amount calculation means 104 for calculating a first feature amount according to a distance from a boundary of the color gamut of the output color space for a color of each pixel of the input image; gain acquisition means 104 for acquiring compression gain by inputting a value obtained by offsetting the first threshold from the first feature amount to a lookup table that outputs compression gain for performing color gamut conversion; and color gamut conversion means 104 for performing color gamut conversion by applying the compression gain to the input image.