专利名称：Screening method for overlapping sub-
images
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发明人：Dirk Broddin,Mario Verbruggen,Serge
Tavernier
生理周期申请号：US10695118
申请日：20031028
公开号：US20040085587A1
梦见很多衣服公开日：
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中考英文
出行安全20040506
专利内容由知识产权出版社提供
专利附图：
摘要：For the reproduction of originals, images are generated on an image carrier, for example by printing. The imaging device that generates the image is usually not capable
to cover at once the complete image area on the carrier. If the device is capable to cover the full width of the image area, the image may be generated line by line. Devices not having this capability will generate a first portion of an image line on the carrier. An adjacent cond portion of the image line is then generated by another imaging device or after a period of time by the imaging device that generated the first portion. The region where the first and cond portion meet on the carrier may cau visual artefacts on the final reproduction due to spatial misregistration of the adjacent line portions. This problem is solved by dividing the image in adjacent sub-images having an overlap zone on the carrier. Within this overlap zone two sub-images will be generated on top of each other for reproducing the original image in that zone, thereby reducing or avoiding the artefacts. According to one method, the resulting optical density of the first and cond sub-image is reduced within the overlap zone as the outer edge of the sub-image in the overlap zone is approached. The density reduction may be achieved by reduction of the microscopic density of individual microdots or by reduction of the dot percentage or by a combination of the techniques.
申请人：BRODDIN DIRK,VERBRUGGEN MARIO,TAVERNIER SERGE
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