There is no specific step in matting, it is a comprehensive operation according to the specific conditions of the image, and there is no fixed step. Specific matting technology must be adopted according to the specific conditions of the image.
1, if the color contrast between the foreground and the background is large, you can use the color range to extract.
2. If one of the channels is black and white, you can use the channel method to extract it.
3. If the boundary between the foreground and the 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.
5. If the boundary is complex, such as hair, you can use the Knockout2 filter to extract it.
Wait a minute.