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    • 87. 发明专利
    • Image processing apparatus, image processing method, and computer program
    • 图像处理设备,图像处理方法和计算机程序
    • JP2014147046A
    • 2014-08-14
    • JP2013016094
    • 2013-01-30
    • Pfu Ltd株式会社Pfu
    • HONDA KEIJI
    • H04N1/387G06T1/00
    • G06T7/0085G06K9/36G06K9/4633G06K9/48G06T7/13G06T7/181G06T2207/30176
    • PROBLEM TO BE SOLVED: To provide an image processing apparatus and an image processing method which can accurately detect an edge of a document from a read image.SOLUTION: An image reading apparatus 10 comprises: a first edge pixel detection section 101 for detecting a plurality of first edge pixels from an input image; a straight line detection section 102 for detecting a straight line from the plurality of first edge pixels; a classification section 103 for classifying the plurality of first edge pixels into on-line edge pixels which are located within a predetermined distance from the straight line and non-on-line edge pixels which are not located within the predetermined distance; a second edge pixel detection section 104 for, when there is any non-on-line edge pixel between two on-line edge pixels, detecting a second edge pixel between the two on-line edge pixels; and a determination section 105 for determining whether or not the non-on-line edge pixel represents the end of a document based on whether or not the two on-line edge pixels are connected by the second edge pixels via the non-on-line edge pixel.
    • 要解决的问题:提供一种能够从读取的图像精确地检测文档的边缘的图像处理装置和图像处理方法。解决方案:图像读取装置10包括:第一边缘像素检测部分101,用于检测多个 的来自输入图像的第一边缘像素; 用于检测来自多个第一边缘像素的直线的直线检测部分102; 用于将多个第一边缘像素分类为位于距离直线预定距离内的在线边缘像素和不位于预定距离内的非在线边缘像素的分类部分103; 第二边缘像素检测部分104,用于当在两个在线边缘像素之间存在任何非在线边缘像素时,检测两个在线边缘像素之间的第二边缘像素; 以及确定部分105,用于基于两个在线边缘像素是否通过非在线边缘像素连接第二边缘像素来确定非在线边缘像素是否表示文档的结尾 边缘像素。