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    • 8. 发明授权
    • Image processing method and image processing apparatus
    • 图像处理方法和图像处理装置
    • US08175323B2
    • 2012-05-08
    • US12190798
    • 2008-08-13
    • Takashi YamaguchiTakeo MikiKenji Miyazaki
    • Takashi YamaguchiTakeo MikiKenji Miyazaki
    • G06K9/00
    • G06T1/0028G06T2201/0051G06T2201/0061G06T2201/0083H04N1/32272H04N1/32283H04N1/32309
    • In an image processing apparatus for creating synthetic image information by embedding sub-information in an invisible state in main image information in a visible state, attention pixels in the main image information are set, a specific pixel block is created by assigning a first specific pixel to the attention pixel of a first color and a second specific pixel to the attention pixel of a second color, first key information is selected for a first value of the sub-information constituted by binary information and second key information is selected for a second value, color difference modulation processing is performed on the selected key information based on a predetermined color difference amount, and the color-difference-modulated key information is superposed on the specific pixel block to thereby create the synthetic image information in which the sub-information in an invisible state is embedded in the main image information.
    • 在用于通过以可见状态将主要图像信息中的不可见状态嵌入子信息来创建合成图像信息的图像处理装置中,设置主图像信息中的注意像素,通过分配第一特定像素来创建特定像素块 将第一颜色和第二特定像素的关注像素注视到第二颜色的关注像素,对于由二进制信息构成的子信息的第一值选择第一密钥信息,并且为第二值选择第二密钥信息 基于预定的色差量对所选择的密钥信息执行色差调制处理,并且将色差调制密钥信息叠加在特定像素块上,从而创建合成图像信息,其中子信息 在主图像信息中嵌入一个隐形状态。