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公开(公告)号:US5802215A
公开(公告)日:1998-09-01
申请号:US767893
申请日:1996-12-17
申请人: Rosario A. Bracco , George L. Harer , Sue K. Lam , Louis D. Mailloux , Hoan N. Nguyen , Cheryl A. Pence , Hung M. Pham , Cathleen J. Raker , Farhad D. Rostamian , Robert R. Thompson, Jr. , Daniel D. Truong
发明人: Rosario A. Bracco , George L. Harer , Sue K. Lam , Louis D. Mailloux , Hoan N. Nguyen , Cheryl A. Pence , Hung M. Pham , Cathleen J. Raker , Farhad D. Rostamian , Robert R. Thompson, Jr. , Daniel D. Truong
CPC分类号: H04N1/403 , G03G15/047
摘要: A lead edge lightening circuit which will lighten a scan line based on a seven by seven pixel area surrounding the current pixel. The area is divided into four sub-areas, each of four by four pixels, and each having the current pixel at one corner. Each sub-area is summed and compared to a threshold number. If the threshold number is equalled or exceeded by at least one of the four sums, an overlay bit, which can be white or black, is output. The current pixel is replaced by a white pixel if a white pixel has been output, otherwise the current pixel remains unchanged.
摘要翻译: 一个引线边缘发光电路,其将基于当前像素周围的七乘七像素区域来减轻扫描线。 该区域被分成四个子区域,每个子区域分别是四个像素,并且每个子区域在一个角上具有当前像素。 将每个子区域相加并与阈值进行比较。 如果阈值数目等于或超过四个和中的至少一个,则输出可以是白色或黑色的覆盖位。 如果输出了白色像素,则当前像素被白色像素代替,否则当前像素保持不变。
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公开(公告)号:US6129457A
公开(公告)日:2000-10-10
申请号:US886507
申请日:1997-07-01
申请人: Robert R. Thompson, Jr. , Farhad D. Rostamian , Louis D. Mailloux , Cheryl A. Pence , Rosario A. Bracco , Cathleen J. Raker , Sue K. Lam , George L. Harer , Hung M. Pham , Daniel D. Truong
发明人: Robert R. Thompson, Jr. , Farhad D. Rostamian , Louis D. Mailloux , Cheryl A. Pence , Rosario A. Bracco , Cathleen J. Raker , Sue K. Lam , George L. Harer , Hung M. Pham , Daniel D. Truong
CPC分类号: H04N1/40068 , G06K15/02 , G06K15/1874 , G06T3/40 , G06K2215/006
摘要: A system for providing an output from a digital printing apparatus which is of higher resolution than the native resolution of the original image data. For a given center pixel area, image data corresponding to pixel areas generally neighboring the center pixel area are attempted to be matched to various templates which are consistent with curved lines in which resolution enhancement of the center pixel would be desirable. In a second stage of template matching, a second set of image data, corresponding to pixel areas further away from the center pixel than the first set of pixel areas, is also attempted to be matched to templates. The second stage of template matching helps to avoid resolution enhancement of image data which is related to a halftone image.
摘要翻译: 一种用于从数字打印装置提供比原始图像数据的原始分辨率高的分辨率的输出的系统。 对于给定的中心像素区域,尝试与通常与中心像素区域相邻的像素区域对应的图像数据与与其中希望的中心像素的分辨率增强的曲线一致的各种模板匹配。 在模板匹配的第二阶段中,也尝试与模板匹配的第二组图像数据对应于比第一组像素区域更远离中心像素的像素区域。 模板匹配的第二阶段有助于避免与半色调图像相关的图像数据的分辨率增强。
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