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公开(公告)号：US20180174280A1
公开(公告)日：2018-06-21
申请号：US15838685
申请日：2017-12-12
发明人： Yangxiao MA
CPC分类号： G06T5/006 , G06T3/60 , G06T5/002 , G06T7/70 , G06T2207/20024 , G06T2207/20172
摘要： Method and device for image rotation, and apparatus for image formation are provided. The method includes obtaining a tilt angle and size information of a to-be-processed image data, and obtaining position information of a target pixel corresponding to each rotated original pixel by performing a calculation based on the tilt angle and the size information and position information of each original pixel. The method also includes obtaining an enhancement parameter value and an edge parameter value by filtering the original pixel. Further, the method includes performing a two-dimensional interpolation process based on neighboring pixels of the original pixel, the enhancement parameter value and the edge parameter value, and obtaining a target pixel value of the target pixel according to an original pixel value of the original pixel, the enhancement parameter value, and the edge parameter value, thereby obtaining a target image corresponding to the rotated to-be-processed image data.
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公开(公告)号：US20170195520A1
公开(公告)日：2017-07-06
申请号：US15394331
申请日：2016-12-29
发明人： Jibing PENG , Yangxiao MA
IPC分类号： H04N1/405
CPC分类号： H04N1/4052 , H04N1/4053 , H04N2201/0081
摘要： In various embodiments, an image processing method using self-adaptive error diffusion algorithm, a related apparatus and device are provided. In some embodiments, the method comprises: determining a neighboring region in an original image for error diffusion process, the neighboring region including a center point and its adjacent points; based on pixel values of the center point and the adjacent points, calculating an error diffusion process weight value for each adjacent point corresponding to an error diffusion process from the center point towards each adjacent point; after binarizing the pixel value of the center point, calculating an error value according to the binarized pixel value of the center point; adding a product of the error diffusion process weight value for each adjacent point and the error value to the pixel value of each adjacent point respectively to obtain an error-diffusion-processed pixel value for each adjacent point in the neighboring region.
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公开(公告)号：US20190075217A1
公开(公告)日：2019-03-07
申请号：US16183147
申请日：2018-11-07
发明人： Yangxiao MA
摘要： Method, device, and storage medium for image processing, and apparatus for image formation are provided. The method includes obtaining original image data and detecting a tilt angle of an image according to the original image data. The method also includes performing a binarization processing on the original image data to obtain binarized image data. The binarization processing and detecting the tilt angle are performed in parallel. Further, the method includes performing a rotation correction on the binarized image data according to the detected tilt angle.
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4.发明申请公开(公告)号：US20180069984A1
公开(公告)日：2018-03-08
申请号：US15694571
申请日：2017-09-01
发明人： Yangxiao MA , Lina MENG
CPC分类号： H04N1/40062 , G06K9/00463 , G06K9/325 , H04N1/00411 , H04N1/4092 , H04N2201/0094
摘要： A text separation method, a text separation device, and an image formation apparatus are provided. The text separation method includes obtaining a pixel value of each pixel in a to-be-processed image having a plurality of pixels; determining an edge intensity value of each pixel according to pixel values of each pixel and a preset number of pixels adjacent to each pixel; determining a binary map corresponding to the to-be-processed image according to the edge intensity value of each pixel; determining a text region determination value of each pixel according to the binary image and the pixel value of each pixel; and determining text-body regions and non-text-body regions in the to-be-processed image according to the text region determination value of each pixel.
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