Re-screen: To take a picture which is already screened such as a half-tone and shoot it again with a new half-tone screen. It is important in doing this to avoid moire pattern happening.

• 再加网:把一帧已经网点化的图片，如半色调图片，再从新用半色调网拍摄的情况。拍摄时要避免撞网图案的出现。