Firstly, an algorithm for digital video watermarking is proposed based on binary operation in 3D wavelet transform domain.
首先,在分析了现有的数字水印算法的基础上,提出了一种在三维小波变换域内基于二值运算的数字视频水印嵌入算法。
参考来源 - 基于小波变换的数字水印算法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
下一个 UDF 在给定的两个整数值之间执行 EXLUSIVE OR 运算，这两个值已经被转换成二进制形式
The next UDF performs EXLUSIVE OR operation between two given integer values as translated to binary expressions
但是第二个if语句计算为True，因为变量i能被125整除(并且not运算符将结果0转换成布尔值True)。
But now the second if statement evaluates True because the variable I is evenly divisible by 125 (and the not operator turns the resulting 0 into a Boolean True).
注意到毕竟匹配程序的运算属于二次运算方式，所以如果将这里的值每提高一倍，所需要四倍的时间用于处理。
Note, however, that the matching algorithm is of quadratic complexity, which means that it will take about four times longer when the number of stars used for the match is doubled.
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