The images acquired from cameras are available with color information such as R(red)/G(green)/B(blue).RGB images can render 16.7 million colors on the screen, and adjustment of color intensity with a range of 0 to 255 can be performed.
For each of RGB, black is rendered with a 0 value and white is rendered with a 255 value.

During measurement of color images, many colors can be measured by adjusting the RGB values.