波压缩的英文

例句与用法

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1. It is studied that the problems in embedding multiple watermarks simultaneously , and proposed an image watermarking scheme which embedded fragile and robust watermarks at the same time . this algorithm , which is based on integer wavelet transform , is public watermarking scheme , both of the two kinds of watermarks can be retrieved without knowing the original image . for retrieving the watermarks , the author proposed a credible bit method , which could enhance the robustness of the watermarks . meanwhile , besides telling you whether an image has been tampered , the fragile watermark could as well , reflect the distortion status in both spatial and frequency domain of the image
   此算法基于整形小波变换，两类水印的提取都不需要知道原始图像。还提出了水印的“可信比特”提取的方法，加强了水印的鲁棒性。算法对jpeg压缩小波压缩噪声中值滤波和裁剪有较好的抵抗能力，同时，易损水印除了能鉴别图像是否被篡改外，还能报告图像在空间域和频率域的失真情况。