After separating the colors of image into cyan magenta yellow black,films with meshes are output by adding meshes on image in computer photo halftoning technique.

• 将一幅彩色图像分成C、M、Y、K(青、品红、黄、黑)四个频道后,采用计算机制版中的图像加网技术生成带网胶片,通过控制网格的参数来表达各频道颜色的明暗和层次。