Abstract: Vectorization of image/video has many potential advantages comparing to a raster format,such as higher compression ratios for storage and allowing display on devices with differing capabilities.Cartoon animations are more suitable for vectorizing than the videos from real world because of their clear edge and region.We proposed a new algorithm of image segmentation based on Canny operator,solved the problem of discontinuity of edge detection and created a material box for each cartoon animation.We proposed a way to low the compression ratio by reusing the material of cartoon in the material box,and also solved the problem of flicker during the vectorization with the material box.We made a system to automaticly vectorize the cartoon animations including the shot segmentation,active region extraction and creating the material box.Our system can give good result on different kinds of cartoon,even those with complex texture in it.

Key words: Vectorization,Image segmentation,Cartoon animation,Frames coherence