The paper propose a novel seal extract method through template matching based on the characteristics of the
external contour of the seal image in Chinese Painting and Calligraphy. By analyzing the characteristics of the seal edge,
we obtain the priori knowledge of the seal edge, and set up the outline template of the seals, then design a template
matching method by computing the distance difference between the outline template and the seal image edge which can
extract seal image from Chinese Painting and Calligraphy effectively. This method is proved to have higher extraction
rate by experiment results than the traditional image extract methods.
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