关键词: 印章验证 脉冲耦合神经网络 图像分割 边缘匹配

Abstract:

This paper proposes a new method for check verification, It includes extracting the seal imprint from the complex background, and a modified registrat ion method for rectangular seals. In the segmentation step, the outer frame is firstly obtained by the thinning algorithm based on the synchronous characteristics of PCNN. Then the whole seal is extracted by the global threshold method using the color information of the outer frame. For rectangular seals, the raw-to-fine edge matching method is used to register the two seals. The experimental results show that the proposed check verification method canextract the seal imprint from the complex background, and the registration method is effective.

Key words: seal verification, PCNN, image segmentation, edge matching