How to use solid color to complete the background?

The key to turning the background into a solid color is to dig out the foreground and then fill the background with the desired color.

But matting is a comprehensive operation according to the specific situation of the image, and there are no fixed steps. Specific matting techniques must be adopted according to the specific conditions of the image.

1. If the color contrast between the foreground and the background is large, the color range can be used to extract.

2. If one of the channels is black and white, it can be extracted by the channel method.

3. If the boundary between foreground and background is obvious, you can use the magic wand tool to deal with it.

4. If the boundary is not obvious and cannot be determined, you can use the pen tool to extract it.