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1. 发明授权

US09426329B2 Image processing system of background removal and white/black point compensation 有权
标题翻译：背景去除和白/黑点补偿的图像处理系统
公开(公告)号：US09426329B2
公开(公告)日：2016-08-23
申请号：US14328507
申请日：2014-07-10
申请人： CSR Imaging US, LP
发明人： Cheng-Yu Wang , Chao-Hsin Hung , Sung-Chu Lee
IPC分类号： H04N1/38 , H04N1/407 , G06T7/00 , G06T7/40 , H04N1/60
CPC分类号： H04N1/4074 , G06K9/38 , G06K9/4652 , G06T2207/10024 , H04N1/6027
摘要： Embodiments are directed towards identifying background pixels in a scanned image so that they can be removed from the image. A histogram of each color channel for an initially scanned portion of the image may be determined. The histogram may represent a frequency distribution of pixels in the scanned portion across each color value for each color channel. A white point tracking profile may be determined based on the histogram. The white point tracking profile may identify a range of color values for each channel that are statistically related to a mode color value of a corresponding color channel. When pixels in the scanned image are determined to have a color profile within the white point tracking profile, then those pixels may be modified to a predetermined color profile, such as a maximum color value for each channel. The modified pixels may then be removed from the scanned image.
摘要翻译：实施例旨在识别扫描图像中的背景像素，使得它们可以从图像中去除。可以确定图像的初始扫描部分的每个颜色通道的直方图。直方图可以表示每个颜色通道的每个颜色值的扫描部分中的像素的频率分布。可以基于直方图来确定白点跟踪简档。白点跟踪配置文件可以标识与相应颜色通道的模式颜色值统计相关的每个通道的颜色值的范围。当扫描图像中的像素被确定为在白点跟踪轮廓内具有颜色分布时，那些那些像素可被修改为预定的颜色轮廓，例如每个通道的最大颜色值。然后可以从扫描图像中去除修改的像素。

2. 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。

3. 发明申请

US20160014301A1 IMAGE PROCESSING SYSTEM OF BACKGROUND REMOVAL AND WHITE/BLACK POINT COMPENSATION 有权
标题翻译：背景去除和白点/黑点补偿的图像处理系统
公开(公告)号：US20160014301A1
公开(公告)日：2016-01-14
申请号：US14328507
申请日：2014-07-10
申请人： CSR Imaging US, LP
发明人： Cheng-Yu Wang , Chao-Hsin Hung , Sung-Chu Lee
IPC分类号： H04N1/407 , G06T7/40 , H04N1/56 , G06T7/00
CPC分类号： H04N1/4074 , G06K9/38 , G06K9/4652 , G06T2207/10024 , H04N1/6027
摘要： Embodiments are directed towards identifying background pixels in a scanned image so that they can be removed from the image. A histogram of each color channel for an initially scanned portion of the image may be determined. The histogram may represent a frequency distribution of pixels in the scanned portion across each color value for each color channel. A white point tracking profile may be determined based on the histogram. The white point tracking profile may identify a range of color values for each channel that are statistically related to a mode color value of a corresponding color channel. When pixels in the scanned image are determined to have a color profile within the white point tracking profile, then those pixels may be modified to a predetermined color profile, such as a maximum color value for each channel. The modified pixels may then he removed from the scanned image.
摘要翻译：实施例旨在识别扫描图像中的背景像素，使得它们可以从图像中移除。可以确定图像的初始扫描部分的每个颜色通道的直方图。直方图可以表示每个颜色通道的每个颜色值的扫描部分中的像素的频率分布。可以基于直方图来确定白点跟踪简档。白点跟踪配置文件可以标识与相应颜色通道的模式颜色值统计相关的每个通道的颜色值的范围。当扫描图像中的像素被确定为在白点跟踪轮廓内具有颜色分布时，那些那些像素可被修改为预定的颜色轮廓，例如每个通道的最大颜色值。然后可以将经修改的像素从扫描图像中移除。

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