In order to reduce inconvenience of setting threshold value in watermark algorithm, the amount of calculation is reduced to extracting watermark.
为了减少水印算法中设置阈值带来的不便，减少水印提取时的计算量。
In order to reduce inconvenience of setting threshold value in watermark algorithm, the amount of calculation is reduced to extracting watermark.
为了减少水印算法中设置阈值带来的不便，减少水印提取时的计算量。
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