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Method of nonlinear equalization of degraded document images
Method of nonlinear equalization of degraded document images
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机译:退化文档图像的非线性均衡方法
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摘要
A method identifies and models the distortion in a document using a two-dimensional nonlinear filter. The two-dimensional nonlinear filter is then used to improve the performance of optical character recognition systems in recognizing characters in documents that have been degraded, as for example by repeated photocopy reproductions or by fax transmission.
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