Image processor, image display device, and image processing method for correcting input image

An image display device, comprising:

• an image processor;
• and
• a projector,
• the image processor including
• a processor configured to implement at least:
• acquiring a first image, and first information indicating a condition of a first projection surface, the first information including a first color gamut of the first projection surface;
• deriving a second color gamut based on the first color gamut;
• converting a chromaticity of the first image to obtain a second image, each pixel of the second image having a color included in the second color gamut;
• and
• generating a first converted image by correcting the second image based on the first color gamut, wherein
• the projector is configured to display the first converted image by projecting the first converted image onto the first projection surface.

An image processing method, comprising:

• acquiring a first image, and first information indicating a condition of a first projection surface, the first information including a first color gamut of the first projection surface;
• deriving a second color gamut based on the first color gamut;
• converting a chromaticity of the first image to obtain a second image, each pixel of the second image having a color included in the second color gamut;
• and
• generating a first converted image by correcting the second image based on the first color gamut.