At first, it quantizes the image coefficient vector gotten from DWT with the lattice vector quantization technology, then imbeds the watermark signal into the coefficient.
该算法先通过格矢量量化技术对经d WT变换后的宿主图像的系数矢量进行格矢量量化,然后将水印信号嵌入到量化后的系数中。
As one method of image lossy compression vector quantization has great compression ratio.
作为图像有损压缩的方法之一,矢量量化的压缩比极大。
To tackle the derailment phenomenon consisting in side-match vector quantization image coding technology, we introduced support vector machine.
针对边缘匹配矢量量化图像编码方法存在的出轨现象,提出一种引入支持向量机的方法。
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