adjacent wavelet meaning in Chinese

相邻子波

The wavelet coefficients used in the method are extracted by histogram of adjacent wavelet coefficients product
该方法采用小波系数乘积的直方图方法提取小波系数。
( 4 ) designed an image authentication method of semi - fragile watermarking technique based on dwt . we transform the image into wavelet domain and group the four adjacent wavelet coefficients
( 4 )由于小波变换具有良好的空间?频率局部特性以及与人眼视觉特性相符的变换机制，在新一代静止图像压缩标准( jpeg2000 )和运动图像压缩标准mpeg - 4中占据了重要位置。
Utilizing the characteristics of the human visual system , we embed a digital signal into the average value of the four adjacent wavelet coefficients since the average value has better stability than single wavelet coefficient . this method need n ' t original image when the watermark is extracting . experiment results show the effectiveness of this method which is robust to common image process and fragile to malicious attack , i . e . this method can detect the tampered portions
因此，本文利用小波系数均值来嵌入水印，提出了一种基于小波域的图像完整性验证的半脆弱水印算法，在鲁棒性和脆弱性方面达到了很好的平衡，对非恶意攻击有很强的鲁棒性，而对于恶意的篡改操作有很强的识别和定位能力。