It can be seen from Figure 1 that even different colors may have the same performance after being converted to black and white, which makes it difficult to demarcate the relationship between the images in the picture.

Color performance and color temperature are the data ginseng that scientists try to express their perception,

Minute color differences are the biggest headache anywhere that color is used. But with a colorimeter, even
minute color differences can be expressed numerically and easily understood. Let’s use the Lab* and

The color contrast method uses strong contrasting colors to distinguish the difference between the subject andother objects.