The calculation amount is reduced by segment golden search method and demodulation speed is fast.
采用分段黄金搜索法减少了计算量，解调速度快。
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。
The method is simple and the amount of calculation is reduced greatly.
该方法简便且计算量大为减少。
The method is simple and the amount of calculation is reduced greatly.
该方法简便且计算量大为减少。
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