发明名称 OCR image preprocessing method for image enhancement of scanned documents
摘要 For performing optical character recognition and other scanned document image processing the method for unshading dot shaded areas performs a statistical dot size analysis to determine the distribution of the dot sizes in the dot shaded area. In a separate step the most suitable dot size limitation is determined, followed by deleting dots falling within the so determined dot size limitation.
申请公布号 US5625719(A) 申请公布日期 1997.04.29
申请号 US19950445663 申请日期 1995.05.22
申请人 发明人
分类号 G06K9/32;G06K9/34;G06K9/36;G06K9/40;G06T9/00;H04N1/38;H04N1/387;H04N1/409;(IPC1-7):G06K9/40 主分类号 G06K9/32
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