One of VQ image coding method used in the low frequency subband-the unbalanced tree-structured VQ is presented in this paper.
文章介绍一种图像低频子带编码的矢量量化方法—非对称树结构矢量量化。
Then the high frequency subband were processed by the threshold setting method, and the processed signal was reconstructed next.
然后通过设置阈值的方法对高频子带进行处理，接着进行重构。
A method of image magnification with ENO interpolation which based on wavelet transform is presented, to enhance the coefficient of the high frequency subband.
提出了基于小波变换的ENO插值图像放大方法，对插值后的图像做小波变换，对于高频系数进行修正，经过重构保持放大图像的清晰度。
The experimental results show that the new algorithm effectively weakens the high-frequency coefficients on the non-horizontal and non-vertical directions of every image subband.
实验结果表明，新算法有效削弱了遥感影像各子带中非水平与非垂直方向的高频系数；
The experimental results show that the new algorithm effectively weakens the high-frequency coefficients on the non-horizontal and non-vertical directions of every image subband.
实验结果表明，新算法有效削弱了遥感影像各子带中非水平与非垂直方向的高频系数；
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