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    • 10. 发明申请
    • IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    • 图像处理装置和图像处理方法
    • US20140016775A1
    • 2014-01-16
    • US14030629
    • 2013-09-18
    • FUJITSU LIMITED
    • Jun TAKAHASHIShohei NAKAGATAKensuke KURAKITaizo ANAN
    • H04L9/28
    • H04L9/28G09C5/00H04N1/32224H04N1/32229H04N1/32309H04N1/448
    • An image processing apparatus includes: a dividing unit dividing at least one region on a digitalized image into multiple blocks; a scrambling unit producing an encrypted image by rearranging each block; a pixel value judging unit judging, for each block on the encrypted image, whether a difference between a statistically representative value of a pixel value of a first region included in the block and a statistically representative value of a pixel value of a second region is no smaller than a predetermined value, the second region being included in a block adjacent to the block and being adjacent to the first region; and a pixel value converting unit converting the pixel value of the first region in each block having the difference smaller than the predetermined value, while not converting the pixel value of the first region in each block having the difference no smaller than the predetermined value.
    • 一种图像处理装置包括:分割单元,将数字化图像上的至少一个区域划分成多个块; 加扰单元,通过重新排列每个块来产生加密图像; 像素值判定单元,对加密图像上的每个块判断包含在块中的第一区域的像素值的统计学上代表值与第二区域的像素值的统计学上代表值之间的差为否 小于预定值,所述第二区域被包括在与所述块相邻并且与所述第一区域相邻的块中; 以及像素值转换单元,其将不同于预定值的差异的每个块中的第一区域的像素值转换为不具有不同于预定值的差异的块中的第一区域的像素值。