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Because of the existence of possible carbon and seals, it's quite often that images of financial documents such as Chinese bank checks are suffered from bleed-through effects, which will affect the performance of automatic financial document processing such as seal verification and OCR. This paper presents an effective algorithm to deal with bleed-through effects existing in the images of financial...
A novel binarization method for courtesy amount recognition of color Chinese checks is proposed in this paper. It includes two steps: background removal and seal removal. In the first step, two complementary binarization methods (Otsu method and Niblack method) are combined. In the second step, a multi-stage method for seal removal is proposed. All the seal-like pixels whose colors are similar to...
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