Skin color image gamut weight detecting method and device thereof

A skin color image gamut weight detecting device, comprising:

• an image receiving circuit, configured to receive an image, the image having a character image, the image comprising a plurality of pixels, and each of the pixels comprising:
• a first color component;
• and
• a second color component;
• a skin color determining circuit, configured to obtain a skin color region of the character image, a skin color category corresponding to the skin color region, and a first gamut corresponding to the skin color category according to a skin color determining program;
• a skin color analyzing circuit, configured to obtain a plurality of first color component values and a plurality of first cardinal numbers according to the first color components in the skin color region, and configured to obtain a plurality of second color component values and a plurality of second cardinal numbers according to the second color components in the skin color region;
• a gamut obtaining circuit, configured to obtain a second gamut and a weight center according to the skin color category, the first cardinal numbers, the first color component values, the second cardinal numbers, and the second color component values;
• and
• a skin color gamut weight map obtaining circuit, configured to obtain a first weight area and a second weight area according to the first gamut and the second gamut, and configured to obtain a skin color gamut weight map corresponding to the skin color region according to the weight center, the first weight area, and the second weight area.