发明名称 Method and arrangement for locally switching gray dot types to reproduce an image with gray level printing
摘要 A method and arrangement for reproducing an original image scans an original image to digitize the image so as to produce a digitized image signal, and collects statistical information of dot regions from the digitized image signal. For each dot region of the digitized image signal, a dot type is selected to render that dot region in accordance with the statistical information, the dot type being either a mixed dot type or one of a fixed threshold or a partial dot type. A printer is controlled to print the digitized image signal by rendering the dot regions in accordance with the selected dot type for each dot region, so that an original image that may contain different types of image regions is satisfactorily reproduced.
申请公布号 US5200831(A) 申请公布日期 1993.04.06
申请号 US19920895555 申请日期 1992.06.05
申请人 EASTMAN KODAK COMPANY 发明人 TAI, HWAI-TZUU
分类号 H04N1/40;H04N1/405 主分类号 H04N1/40
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