本文的水印方法借助扩频水印的思想，通过量化函数对版权保护图像的小波变换系数进行量化，产生的二值序列作为水印。
This paper borrows the idea from spread spectrum watermark, quantizes the wavelet transform coefficients the copyright protected image to produce a binary sequence, which is just the watermark.
这是一个关于二值化变换的源代码，是数字图像处理的其中一个重要算法。
This is one of two binary transform the source code, digital image processing is one of the key algorithm.
实验表明嵌入式零材编码方法可以用在非分离型二维子波变换情况，在低比特率时有很好的巅值信噪比PSNR。
The experiment shows that the embedded zerotree coding method can be used in the case of nonseparable wavelet transform and has good PSNR at low compression ratio.
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