中文说明：将基于小波变换的水印嵌入后的宿主图像加噪处理再提取灰度水印。
English Description：
After embedding the watermark based on wavelet transform, the host image is denoised, and then the gray watermark is extracted.
After embedding the watermark based on wavelet transform, the host image is denoised, and then the g
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中文说明：将基于小波变换的水印嵌入后的宿主图像加噪处理再提取灰度水印。
English Description：
After embedding the watermark based on wavelet transform, the host image is denoised, and then the gray watermark is extracted.