发明名称 Method and apparatus for color image processing, and a computer product
摘要 A show-through is removed as follows. Resolution of the color image is reduced and the color coordinate system is transferred to a one having a high independence. Then, edge intensity is calculated, edge-detection is performed. Then , color threshold processing is performed on a region except the edge to estimate a background color image, and the show-through removed image is synthesized. Edge difference image is calculated from respective edge intensity of the original image and the show-through removed image, any portion where the image is degraded due to inadequate processing is detected, a scale for processing (the size of a window) around such portion is reduced and the same processing is performed again. A show-through portion is then identified by calculating a difference between the show-through removed image and the reduced original image, the show-through portion is removed, and the image is printed.
申请公布号 US2002071131(A1) 申请公布日期 2002.06.13
申请号 US20000734591 申请日期 2000.12.13
申请人 RICOH COMPANY, LIMITED 发明人 NISHIDA HIROBUMI
分类号 H04N1/38;G06T1/00;H04N1/393;H04N1/407;H04N1/409;H04N1/46;H04N1/60;(IPC1-7):G06F15/00 主分类号 H04N1/38
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