Image Value Area Definition: The most easily causing the area in the image can cause people to pay attention to it. I think it can be considered in two aspects: 1. Regional color characteristics and environmental color characteristics difference. The color characteristics, that is, the average of the regional color characteristics of the region, the environment refers to the entire image. 2. Strength of regional color characteristics. If the color feature intensity α area is too large, when it is almost flooded at the entire image, then the color characteristics of the environment is mainly the color characteristics of this area, and the difference between regional color characteristics and environmental color characteristics will be small. People will be more easier to pay attention to the details of this area; if the area is too small, only one point, then the area is small, the corresponding color feature intensity is also small, then people should pay more attention to other slightly larger areas. Defining G is the color characteristic difference, H is the relationship between the color feature strength, f is the relationship between the two, then F (g (x), h (x)) maximum solution is the image value area. 2003.6