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11. 发明授权

US08611671B2 Thin line detection and enhancement for electronic images having different resolutions 有权
标题翻译：具有不同分辨率的电子图像的细线检测和增强
公开(公告)号：US08611671B2
公开(公告)日：2013-12-17
申请号：US12841663
申请日：2010-07-22
申请人： Meng Yao , Xing Li
发明人： Meng Yao , Xing Li
IPC分类号： G06K9/46
CPC分类号： H04N1/4092 , G06K15/1874
摘要： A methodology for thin line detection and enhancement in electronic images is disclosed. The methodology includes associating an electronic image with at least one basic context window that is less than the size of the electronic image based on the input image resolution of the electronic image; detecting one or more predefined patterns which correspond to thin lines in the electronic image using the at least one basic context window; excluding patterns for the one or more detected patterns which are halftone patterns; and adding at least one pixel to the electronic image based on at least one of the remaining patterns so as to enhance thin line features in the electronic image. In some implementation, the methodology may be configured to handle electronic images having different resolutions. A system for thin line detection and enhancement in electronic images having different resolutions is also disclosed.
摘要翻译：公开了一种用于电子图像中细线检测和增强的方法。该方法包括基于电子图像的输入图像分辨率将电子图像与至少一个小于电子图像大小的基本上下文窗口相关联; 使用所述至少一个基本上下文窗口来检测对应于所述电子图像中的细线的一个或多个预定义模式; 排除作为半色调图案的一个或多个检测图案的图案; 以及基于所述剩余图案中的至少一个向所述电子图像添加至少一个像素，以便增强所述电子图像中的细线特征。在一些实现中，该方法可以被配置为处理具有不同分辨率的电子图像。还公开了一种用于具有不同分辨率的电子图像中的细线检测和增强的系统。

12. 发明授权

US08330990B2 Method and system for modifying a multi-bit rasterized digital image to reduce registration artifacts 有权
标题翻译：用于修改多位光栅化数字图像以减少注册伪影的方法和系统
公开(公告)号：US08330990B2
公开(公告)日：2012-12-11
申请号：US12351930
申请日：2009-01-12
申请人： Xing Li , Yingjun Bai
发明人： Xing Li , Yingjun Bai
IPC分类号： G06K1/00 , G06K9/34 , B41J2/42
CPC分类号： H04N1/60 , H04N1/40 , H04N1/6072
摘要： A method and system modify a rasterized digital image to reduce registration artifacts, the image having a black plane and a color plane by determining if a pixel is part of a connected black region and if the pixel is part of a connected color region. It is determined if the pixel is part of a connected black region and a connected color region that are contiguous. A dilation operation is performed on the color plane value of the pixel if the pixel is part of a connected black region and a connected color region that are contiguous.
摘要翻译：一种方法和系统通过确定像素是否是连接的黑色区域的一部分以及像素是连接的颜色区域的一部分来修改光栅化数字图像以减少配准伪像，图像具有黑色平面和彩色平面。确定像素是连接的黑色区域和连续的颜色区域的一部分。如果像素是连接的黑色区域的一部分和连续的连接的颜色区域，则对像素的色平面值执行扩张操作。

13. 发明授权

US08285035B2 3+1 layer mixed raster content (MRC) images having a text layer and processing thereof 有权
标题翻译：具有文本层的3 + 1层混合光栅内容（MRC）图像及其处理
公开(公告)号：US08285035B2
公开(公告)日：2012-10-09
申请号：US12329078
申请日：2008-12-05
申请人： Amal Malik , Xing Li
发明人： Amal Malik , Xing Li
IPC分类号： G06K9/00 , G06K9/34
CPC分类号： G06K9/00 , H04N1/40062
摘要： A method, system and data structure for providing a 3+1 layer MRC image, including a text layer. The text layer includes pixel data corresponding to text in an image and may be assigned a predetermined value for a particular color. According to one or more embodiments, the 3+1 layer MRC image may be subject to clean-up processing to alter one or more of the layers, other than the text layer, based on the text layer pixel data. This clean-up processing reduces redundant information stored in the 3+1 layer MRC image and provides opportunities for file size reduction (i.e., data compression).
摘要翻译：一种用于提供包括文本层的3 + 1层MRC图像的方法，系统和数据结构。文本层包括与图像中的文本相对应的像素数据，并且可以为特定颜色分配预定值。根据一个或多个实施例，可以对3 + 1层MRC图像进行清理处理，以便基于文本层像素数据改变文本层之外的一个或多个层。这种清理处理减少了存储在3 + 1层MRC图像中的冗余信息，并提供了减小文件尺寸（即数据压缩）的机会。

14. 发明授权

US08224112B2 Fuzzy method to detect thin lines in scanned image 有权
标题翻译：模糊方法检测扫描图像中的细线
公开(公告)号：US08224112B2
公开(公告)日：2012-07-17
申请号：US12480247
申请日：2009-06-08
申请人： Peter McCandlish , Xing Li , Ryan Metcalfe , Barbara Farrell
发明人： Peter McCandlish , Xing Li , Ryan Metcalfe , Barbara Farrell
IPC分类号： G06K9/40
CPC分类号： G06K9/4604
摘要： Disclosed herein is a method for detecting thin lines in image data. The method is performed by a processor to process contone image data. The processing includes thresholding a window of pixels using a first set of thresholds established in the contone domain, and then counting and thresholding the binary pixels using a second set of thresholds. The processing in the contone and binary domain are used to determine if a thin line exists and if a pixel of interest in the window is an edge pixel that is part of a thin line. The disclosed method produces better quality output images and reduces the addition of false lines in an image.
摘要翻译：这里公开了一种用于检测图像数据中的细线的方法。该方法由处理器执行以处理连续色调图像数据。该处理包括使用在连续色域中建立的第一组阈值阈值化像素窗口，然后使用第二组阈值计数和阈值二进制像素。连续词和二进制域中的处理用于确定细线是否存在，并且窗口中感兴趣的像素是作为细线一部分的边缘像素。所公开的方法产生更好质量的输出图像并且减少图像中虚线的添加。

15. 发明申请

US20120039534A1 COMPRESSION SCHEME SELECTION BASED ON IMAGE DATA TYPE AND USER SELECTIONS 有权
标题翻译：基于图像数据类型和用户选择的压缩方案选择
公开(公告)号：US20120039534A1
公开(公告)日：2012-02-16
申请号：US12853831
申请日：2010-08-10
申请人： Amal Z. Malik , Clara Cuciurean-Zapan , Xing Li
发明人： Amal Z. Malik , Clara Cuciurean-Zapan , Xing Li
IPC分类号： G06K9/36 , G06K9/34
CPC分类号： H04N1/3333 , H03M7/3064 , H03M7/607 , H03M7/6082 , H04N2201/33357
摘要： Disclosed is a processor-implemented method for processing image data comprising a plurality of pixels and system for performing the method. The method includes the following acts: determining at least one type of data represented by the plurality of pixels, determining, for each type of data, a number of pixels from the image data representing that type of data in the image data, and determining a compression scheme for compressing the image data based on a relative or absolute amount of each type of data in accordance with a predetermined scheme. The type of data may be determined by received input (e.g., user selected type and compression quality) or by analyzing its pixels and comparing it to thresholds. Basing the compression technique on the data type allows for better selection of a compression technique (e.g., MRC or JPEG), and thus greater image quality, compression ratios, and file size.
摘要翻译：公开了一种用于处理包括多个像素的图像数据的处理器实现的方法和用于执行该方法的系统。该方法包括以下动作：确定由多个像素表示的至少一种类型的数据，对于每种类型的数据，从表示图像数据中的该类型的数据的图像数据中确定一数量的像素，并且确定压缩方案，用于根据预定方案基于每种类型的数据的相对或绝对量压缩图像数据。数据的类型可以由接收的输入（例如，用户选择的类型和压缩质量）或通过分析其像素并将其与阈值进行比较来确定。基于数据类型的压缩技术可以更好地选择压缩技术（例如，MRC或JPEG），从而更好地选择图像质量，压缩比和文件大小。

16. 发明授权

US07933470B2 Darkness control using pattern matching 有权
标题翻译：黑暗控制使用模式匹配
公开(公告)号：US07933470B2
公开(公告)日：2011-04-26
申请号：US12139865
申请日：2008-06-16
申请人： John C. Handley , André M. Blaakman , Anthony P. Lanza , Francis Kapo Tse , Xing Li , Aron Nacman , David J. Lieberman
发明人： John C. Handley , André M. Blaakman , Anthony P. Lanza , Francis Kapo Tse , Xing Li , Aron Nacman , David J. Lieberman
IPC分类号： G06K9/40
CPC分类号： H04N1/40037 , H04N1/4092
摘要： The present invention is a method and apparatus for processing image data to accomplish tuning or adjustment of images, so as to modify at least the darkness thereof, using compact, efficient methods and designs.
摘要翻译：本发明是用于处理图像数据以完成图像调谐或调整的方法和装置，以便使用紧凑，有效的方法和设计来至少修改其暗度。

17. 发明授权

US07894683B2 Reformatting binary image data to generate smaller compressed image data size 有权
标题翻译：重新格式化二进制图像数据以生成较小的压缩图像数据大小
公开(公告)号：US07894683B2
公开(公告)日：2011-02-22
申请号：US12606523
申请日：2009-10-27
申请人： Ramesh Nagarajan , Francis Kapo Tse , Xing Li
发明人： Ramesh Nagarajan , Francis Kapo Tse , Xing Li
IPC分类号： G06K9/36
CPC分类号： H04N1/41 , G06K9/00456
摘要： In various exemplary embodiments, systems include a segmentor to segment text binary image data to a first plane. A subtractor subtracts text binary image from binary image data to generate a non-text binary image data in a second plane. A converter converts non-text binary image data in the second plane into non-text gray scale image data in the second plane. A first compressor compresses the text gray scale image data in the first plane. A second compressor compresses the non-text gray scale image in the second plane.
摘要翻译：在各种示例性实施例中，系统包括用于将文本二进制图像数据分割到第一平面的分段器。减法器从二进制图像数据中减去文本二进制图像，以在第二平面中生成非文本二进制图像数据。 A转换器将第二平面中的非文本二进制图像数据转换成第二平面中的非文本灰度图像数据。第一压缩器压缩第一平面中的文本灰度图像数据。第二压缩机压缩第二平面中的非文本灰度图像。

18. 发明授权

US07843616B2 Background suppression in a multi-function color scanning system 有权
标题翻译：背景抑制在多功能彩色扫描系统中
公开(公告)号：US07843616B2
公开(公告)日：2010-11-30
申请号：US12056395
申请日：2008-03-27
申请人： Xing Li
发明人： Xing Li
IPC分类号： G03F3/08 , G06F15/00 , G06K9/64
CPC分类号： H04N1/4072 , H04N1/6005 , H04N1/6094
摘要： What is disclosed is a novel system and method for background suppression in the image path. In one example embodiment, an image is scanned and RGB color values generated for each pixel. Each of the pixels is converted into a Lab color space to obtain luminance and chrominance values. A background luminance and a luminance variation are determined for the scanned image. For each pixel, a determination is made whether that pixel is a white pixel or a non-white pixel based. If the pixel is a white pixel, an adjustment chrominance value for that pixel is determined. The value of the chrominance adjustment is modulated as a function of a difference between the white pixel's luminance and the background luminance. The modulated chrominance adjustment is applied to the white pixel. Adjusted and non-adjusted pixels are stored in a memory. A printer controller converts the pixels to an output space.
摘要翻译：公开的是用于图像路径中的背景抑制的新型系统和方法。在一个示例实施例中，扫描图像并为每个像素生成RGB颜色值。每个像素被转换成Lab颜色空间以获得亮度和色度值。确定扫描图像的背景亮度和亮度变化。对于每个像素，确定该像素是基于白色像素还是非白色像素。如果像素是白色像素，则确定该像素的调整色度值。色度调整的值被调制为白色像素的亮度和背景亮度之间的差的函数。调制色度调整被应用于白色像素。调整和未调整的像素存储在存储器中。打印机控制器将像素转换为输出空间。

19. 发明申请

US20090195799A1 ESTIMATING AN AMOUNT OF COLOR IN A DOCUMENT 有权
标题翻译：估计文件中的颜色数量
公开(公告)号：US20090195799A1
公开(公告)日：2009-08-06
申请号：US12025972
申请日：2008-02-05
申请人： AMAL ZAKA MALIK , Xing Li
发明人： AMAL ZAKA MALIK , Xing Li
IPC分类号： H04N1/60
CPC分类号： H04N1/60
摘要： What is provided are a novel system, method, and computer program product for estimating the amount of color in a document to be printed, with the capability to handle composite black. A color billing strategy can be dynamically determined based on the amount of color in the document. In one embodiment, a contone CMYK image is examined and the level of color is estimated based on information extracted from the four planes simultaneously. More specifically, it examines the pixel values from all the four planes to calculate the number of white, black, color, and gray or neutral pixel counts. Input CMYK values can be pre-adjusted via a look-up table to take into account neutral balance characteristics. The difference among the adjusted color values is compared against a threshold that is input level dependent. Color is further subdivided into fuzzy colors to handle highlights and neutral areas.
摘要翻译：提供了一种新颖的系统，方法和计算机程序产品，用于估计要打印的文档中的颜色量，具有处理复合黑色的能力。可以基于文档中的颜色量动态地确定颜色计费策略。在一个实施例中，检查连续色调CMYK图像，并且基于同时从四个平面中提取的信息来估计颜色的等级。更具体地，它检查来自所有四个平面的像素值，以计算白色，黑色，彩色和灰色或中性像素计数的数量。输入CMYK值可以通过查找表预先调整，以考虑中性平衡特征。将调整后的颜色值之间的差异与输入水平相关的阈值进行比较。颜色进一步细分为模糊颜色以处理高光和中性区域。

20. 发明授权

US07555172B2 Dynamic range detection and adjustment 失效
标题翻译：动态范围检测和调整
公开(公告)号：US07555172B2
公开(公告)日：2009-06-30
申请号：US11263249
申请日：2005-10-31
申请人： Ammal Malik , Xing Li , Ramesh Nagarajan
发明人： Ammal Malik , Xing Li , Ramesh Nagarajan
IPC分类号： G06K9/32
CPC分类号： H04N1/38 , G06K9/38 , G06K2209/01 , H04N1/403
摘要： An original image is received. The original image is divided into tiles. A whitepoint value of each tile is determined. A blackpoint value of each tile is determined. A whitepoint value of each pixel in the image is determined by interpolating the determined whitepoint values of neighboring tiles. A blackpoint of each pixel in the image is determined by interpolating the determined blackpoint values of neighboring tiles.
摘要翻译：收到原始图像。原始图像分为瓷砖。确定每个瓦片的白色点值。确定每个瓦片的黑点值。图像中每个像素的白点值通过内插确定的相邻瓦片的白点值来确定。通过内插确定的相邻瓦片的黑点值来确定图像中每个像素的黑点。

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