The embedding strength is decided by the just noticeable difference of the image, and the cover image is not needed during the extraction of watermark.
水印的嵌入强度由图像的视觉临界差异决定，水印的提取不需要载体图像。
The embedding strength is decided by the just noticeable difference of the image, and the cover image is not needed during the extraction of watermark.
水印的嵌入强度由图像的视觉临界差异决定，水印的提取不需要载体图像。
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