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公开(公告)号：US20170053184A1
公开(公告)日：2017-02-23
申请号：US14830767
申请日：2015-08-20
申请人： XEROX CORPORATION
发明人： Sudhagar Subbaian , SAINARAYANAN GOPALAKRISHNAN , XING LI , Vignesh Doss , CLARA CUCIUREAN-ZAPAN
CPC分类号： G06K9/52 , G06K9/3275 , G06K9/46 , G06K9/4604 , G06K9/4647 , G06K9/6201 , G06K9/6218 , G06K2009/4666 , G06T11/00
摘要： The disclosed embodiments illustrate methods and systems for estimating a skew angle of an image. The method includes identifying a set of measurable blocks from one or more blocks in said image. The method further includes dilating each measurable block, in said set of measurable blocks, with a predetermined regular structure to create a set of modified measurable blocks. The method further includes selecting a second set of measurable blocks from said set of modified measurable blocks based on a size of each modified measurable block in said set of modified measurable blocks. Thereafter, the method includes determining a slope of each measurable block in said second set of measurable blocks. Further, the slope is utilizable to estimate said skew angle of said image. The method is performed by one or more microprocessors.
摘要翻译： 所公开的实施例示出了用于估计图像的倾斜角度的方法和系统。 该方法包括从所述图像中的一个或多个块识别一组可测量块。 该方法还包括在所述可测量块集合中以预定的规则结构扩展每个可测量块以创建一组修改的可测量块。 该方法还包括基于所述修改的可测量块组中的每个修改的可测量块的大小从所述修改的可测量块组中选择第二组可测量块。 此后，该方法包括确定所述第二组可测量块中的每个可测量块的斜率。 此外，斜率可用于估计所述图像的所述倾斜角。 该方法由一个或多个微处理器执行。
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公开(公告)号：US20160291905A1
公开(公告)日：2016-10-06
申请号：US14677128
申请日：2015-04-02
申请人： Xerox Corporation
CPC分类号： G06F3/1219 , G06F3/1239 , G06K15/1843 , G06K15/1867 , G06K15/1881
摘要： Systems and methods for reducing toner usage. A print job is received into a print engine. The print engine comprises a processor, and the print job comprises an image. A halftone screen is applied to the pixels of continuous image data for the image. The processor produces a threshold array of pixel values based on the halftone screen. The processor generates a mask based on the halftone screen for each color plane of the image. The processor applies the mask to the threshold array, creating a modified threshold array. The modified threshold array corresponds to relatively reduced toner usage for rendering the image.
摘要翻译： 减少碳粉使用的系统和方法。 打印作业被接收到打印引擎中。 打印引擎包括处理器，并且打印作业包括图像。 将半色调屏幕应用于图像的连续图像数据的像素。 处理器基于半色调屏幕产生像素值的阈值阵列。 处理器基于图像的每个颜色平面的半色调屏幕生成掩码。 处理器将掩码应用于阈值阵列，创建修改的阈值阵列。 修改的阈值阵列对应于用于渲染图像的相对减少的调色剂使用。
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公开(公告)号：US09384391B2
公开(公告)日：2016-07-05
申请号：US14505517
申请日：2014-10-03
申请人： Xerox Corporation
发明人： Sainarayanan Gopalakrishnan , Rajasekar Kanagasabai , Vignesh Doss , Sudhagar Subbaian , Xing Li
CPC分类号： G06K9/00456 , G06F17/212 , G06K9/00422 , G06K9/2063
摘要： Methods and systems for classifying a region of interest in an electronic document. A first region from the electronic document is extracted. The first region includes at least the region of interest. A first projection profile of pixels is determined in the region of interest. The first projection profile of pixels is indicative of a presence of a content in the region of interest. The region of interest is classified in at least one category based on a comparison of the first projection profile with a predetermined projection profile associated with the region of interest.
摘要翻译： 在电子文件中分类感兴趣区域的方法和系统。 提取电子文档的第一区域。 第一区域至少包括感兴趣的区域。 在感兴趣的区域中确定像素的第一投影轮廓。 像素的第一投影轮廓指示感兴趣区域中的内容的存在。 基于第一投影轮廓与与感兴趣区域相关联的预定投影轮廓的比较，感兴趣区域被分类为至少一个类别。
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4.发明授权公开(公告)号：US11055886B2
公开(公告)日：2021-07-06
申请号：US16383811
申请日：2019-04-15
申请人： XEROX CORPORATION
摘要： There is provided a method for filling at least one color in one or more outline images at a multi-function device. The method includes providing a user interface for displaying a color fill option. Based on receiving a selection of the color fill option, a file including at least one outline image is received by a controller. The at least one outline image includes at least one image field. Then, it is identified by an image processor, if the at least one image field includes at least one color marking. Based on the identification, the at least one image field is automatically filled by the image processor according to the at least one color marking to generate a color filled image.
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公开(公告)号：US10079960B1
公开(公告)日：2018-09-18
申请号：US15496054
申请日：2017-04-25
申请人： Xerox Corporation
CPC分类号： H04N1/405 , G06K15/1881 , H04N1/4053 , H04N1/52 , H04N2201/0094
摘要： A print system may include a print engine, a processing device and programming instructions to halftone an electronic document to be printed. The system may receive an input image representing the electronic document to be printed, use a first and second threshold array, which are flipped to each other, to halftone the input image to generate a first and second set of data, respectively, then combine the first and second set of data to generate a halftoned image. In combining the first and second set of data, each dot in the halftoned image may represent full saturation if the corresponding dot in at least one of the first and second set of data represents full saturation, or white if the corresponding dots in both the first and second set of data are white. The system may use the same halftoning method for a monochrome or color document.
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公开(公告)号：US09973654B1
公开(公告)日：2018-05-15
申请号：US15478262
申请日：2017-04-04
申请人： XEROX CORPORATION
CPC分类号： H04N1/4092 , H04N2201/0094
摘要： The present disclosure discloses methods and systems (a multi-function device or a digital printer) having capabilities for an object enhancement. In an example, the MFD includes a digital front end module to detect edge of the object and direction of the edge. Following the detection of the edge, the digital front end module classify the pixels of the edge into two categories, for example, which define that whether the edge pixels are created by black-to-white transition or white-to-black transition. Based on the classification of the edge pixels, the digital front end module performs the object enhancement either in black-to-white transition or in white-to-black transition.
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公开(公告)号：US09542130B2
公开(公告)日：2017-01-10
申请号：US14677128
申请日：2015-04-02
申请人： Xerox Corporation
CPC分类号： G06F3/1219 , G06F3/1239 , G06K15/1843 , G06K15/1867 , G06K15/1881
摘要： Systems and methods for reducing toner usage. A print job is received into a print engine. The print engine comprises a processor, and the print job comprises an image. A halftone screen is applied to the pixels of continuous image data for the image. The processor produces a threshold array of pixel values based on the halftone screen. The processor generates a mask based on the halftone screen for each color plane of the image. The processor applies the mask to the threshold array, creating a modified threshold array. The modified threshold array corresponds to relatively reduced toner usage for rendering the image.
摘要翻译： 减少碳粉使用的系统和方法。 打印作业被接收到打印引擎中。 打印引擎包括处理器，并且打印作业包括图像。 将半色调屏幕应用于图像的连续图像数据的像素。 处理器基于半色调屏幕产生像素值的阈值阵列。 处理器基于图像的每个颜色平面的半色调屏幕生成掩码。 处理器将掩码应用于阈值阵列，创建修改的阈值阵列。 修改的阈值阵列对应于用于渲染图像的相对减少的调色剂使用。
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公开(公告)号：US20160098596A1
公开(公告)日：2016-04-07
申请号：US14505517
申请日：2014-10-03
申请人： Xerox Corporation
发明人： Sainarayanan Gopalakrishnan , Rajasekar Kanagasabai , Vignesh Doss , Sudhagar Subbaian , Xing Li
CPC分类号： G06K9/00456 , G06F17/212 , G06K9/00422 , G06K9/2063
摘要： Methods and systems for classifying a region of interest in an electronic document. A first region from the electronic document is extracted. The first region includes at least the region of interest. A first projection profile of pixels is determined in the region of interest. The first projection profile of pixels is indicative of a presence of a content in the region of interest. The region of interest is classified in at least one category based on a comparison of the first projection profile with a predetermined projection profile associated with the region of interest.
摘要翻译： 在电子文件中分类感兴趣区域的方法和系统。 提取电子文档的第一区域。 第一区域至少包括感兴趣的区域。 在感兴趣的区域中确定像素的第一投影轮廓。 像素的第一投影轮廓指示感兴趣区域中的内容的存在。 基于第一投影轮廓与与感兴趣区域相关联的预定投影轮廓的比较，感兴趣区域被分类为至少一个类别。
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公开(公告)号：US20150356740A1
公开(公告)日：2015-12-10
申请号：US14296553
申请日：2014-06-05
申请人： Xerox Corporation
CPC分类号： G06K9/6267 , G06K9/00456 , G06K9/4638
摘要： A method and system for segmenting text from non-text portions of a digital image using the size, solidity, and run length characteristics of connected components within the image data. For a connected component comprising a rectangular group of pixels enclosing a set of connected pixels having the same binary state, the size characteristic may be based on a ratio of height to width of the connected component and the total number of pixels within the connected component, the solidity characteristic may be based on a ratio of pixels within a convex hull of the set of connected pixel to a total number of pixels within the connected component, and the run length characteristic may be based on a number of transitions within the connected component.
摘要翻译： 一种用于使用图像数据内的连接分量的大小，坚固度和游程长度特征从数字图像的非文本部分分割文本的方法和系统。 对于包括围绕具有相同二进制状态的一组连接像素的矩形像素组的连接分量，尺寸特征可以基于所连接分量的高度与宽度的比率以及连通分量内的总像素数， 固体特性可以基于所连接的像素组中的凸包内的像素与连通分量内的总像素数的比率，并且游程长度特征可以基于所连接的组件内的多个转换。
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公开(公告)号：US10460192B2
公开(公告)日：2019-10-29
申请号：US15299717
申请日：2016-10-21
申请人： XEROX CORPORATION
摘要： A method and system are provided for optical character recognition (OCR) of multi-language content. The method includes extracting a text portion from an image received from a user-computing device. The text portion comprises a plurality of keywords associated with a plurality of languages. The method further includes segmenting the plurality of keywords into a plurality of layers. Each layer of the plurality of layers comprises one or more keywords which are associated with a language. The method further comprise generating an OCR output of each of the plurality of layers based on the language associated with the one or more keywords in each of the plurality of layers. The method further comprises generating an electronic document of the received image based on the generated OCR output of each of the plurality of layers. The method further includes transmitting the generated electronic document to the user-computing device.
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