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1. 发明授权

US09578207B1 Systems and methods for selectively screening image data 有权
标题翻译：用于选择性筛选图像数据的系统和方法
公开(公告)号：US09578207B1
公开(公告)日：2017-02-21
申请号：US14871149
申请日：2015-09-30
申请人： CSR IMAGING US, LP
发明人： Fred William Andree , Sung-Chu Lee , Neil Brad Epstein
IPC分类号： H04N1/46 , H04N1/60 , H04N1/52 , H04N1/405 , H04N1/40 , H04N1/58
CPC分类号： H04N1/52 , H04N1/40062 , H04N1/4052 , H04N1/4055 , H04N1/4092 , H04N1/58 , H04N1/6005 , H04N2201/0094
摘要： Various embodiments are directed to methods, systems, and devices for improving the quality of image data for printing by a printer having relatively low resolution capabilities. Image data may be scanned, captured or otherwise received. The image data may be received in bands, chunks, blocks, portions, regions, or its entirety. An edge detector is subsequently employed to detect a location of edges in a region of the received image data. For image data pixels that are located in or close to a detected edge, a first screen is applied to modify these pixels to compensate for printing at or near the detected edge. Otherwise, a second image screen is applied to modify pixels for printing that are not close to a detected edge. The first screen may be an error diffusion screen or a threshold screen. The second screen may be a halftone screen.
摘要翻译：各种实施例涉及用于改善由具有相对低分辨率能力的打印机进行打印的图像数据的质量的方法，系统和装置。图像数据可能被扫描，捕获或以其他方式接收。图像数据可以在频带，块，块，部分，区域或其整体中被接收。随后采用边缘检测器来检测接收到的图像数据的区域中的边缘的位置。对于位于或接近检测到的边缘的图像数据像素，应用第一屏幕来修改这些像素以补偿在检测到的边缘处或附近的打印。否则，应用第二图像屏幕来修改不接近检测到的边缘的用于打印的像素。第一屏幕可以是错误扩散屏幕或阈值屏幕。第二屏幕可以是半色调屏幕。

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