发明名称 |
Image processing method and apparatus for generating low resolution, low bit depth images |
摘要 |
<p>A digital image processing method for generating a low resolution, low bit depth digital image from a higher resolution, higher bit depth input color digital image, includes the steps of: generating a gray scale image from the input color digital image; generating a valley image; filtering the valley image with a rank order filter to produce a filtered valley image; thresholding the filtered valley image to generate a binary valley image; generating a shadow image and a highlight image from the gray scale image; combining the shadow image, the highlight image, and the binary valley image to produce a combined binary image; and sub-sampling the combined binary image to a desired low resolution. <IMAGE></p> |
申请公布号 |
EP1154378(A2) |
申请公布日期 |
2001.11.14 |
申请号 |
EP20010201561 |
申请日期 |
2001.05.01 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
YU, QING;LUO, JIEBO;SIMON, RICHARD A. |
分类号 |
G06T11/60;G06T3/40;G06T5/00;G06T5/20;G06T5/40;G09G5/00;G09G5/36;G09G5/391;H04N1/387;H04N1/46;H04N9/64;(IPC1-7):G06T3/40 |
主分类号 |
G06T11/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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