The image has been divided into several sections, the gray value of the largest, second and third of each section has been embeded watermarking by module 2.
将图像划分为若干节，对每节最大、第二、第三等三个灰度值分别采用模2法嵌入水印。
The image has been divided into several sections, the gray value of the largest, second and third of each section has been embeded watermarking by module 2.
将图像划分为若干节，对每节最大、第二、第三等三个灰度值分别采用模2法嵌入水印。
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