Patent Document ID: 9710931
Application ID: 14428924
Patent Status: 1

Claim One:
1. An image processing apparatus comprising: a processor; and a memory coupled to the processor, wherein the memory includes instructions executable by the processor to: perform hue rotation processing at rotation angle θ at which one color difference signal of two color difference signals in a color space defined by the two color difference signals is set to a first color difference signal that is a color difference signal of a color pair that is easy to be perceptible by a dichromat and the other color difference signal of the two color difference signals is set to a second difference signal that is a color difference signal of a color pair that is difficult to be perceptible by the dichromat, for each pixel data of an original color image of an object, which is acquired by imaging the object and expressed by a luminance signal and the two color difference signals; acquire a color image subjected to hue rotation on which the hue rotation processing is performed; perform mixing processing that mixes a component of the second color difference signal with a component of the first color difference signal, for each pixel data of the color image subjected to hue rotation; perform reverse hue rotation processing at rotation angle −θ in the color space defined by the first color difference signal and the second color difference signal, for each pixel data of the color image processed by the mixing processing; and display the color image subjected to the reverse hue rotation processing on a display unit as a color image subjected to color conversion.