本文介绍的矢量编码属于图像信息非保持编码，它是根据色度学理论来实现彩色图像数据压缩的。
The vector coding touched in this article is a kind of coding based on the theories of color metrics, which belongs to non-preserving coding of image information.
提出了基于小波变换的HSI空间的彩色纹理墙地砖图像的特征提取新算法，得到具有颜色、纹理和尺度融合信息的特征矢量。
A new feature algorithm is proposed based on wavelet transform in HSI space to obtain a feature vector with combining information of color, texture and scale.
通过分析彩色图像的数据格式，将八叉树量化方法用于彩色图像的颜色信息量化，并采用矢量中值滤波消除彩色图像噪声，以实现对彩色图像的合理预处理。
Then the experimental results show that the vector median filtering algorithm based on PCNN and HIS not only can effectively remove the noise, but also can protect the details of color image better.
通过分析彩色图像的数据格式，将八叉树量化方法用于彩色图像的颜色信息量化，并采用矢量中值滤波消除彩色图像噪声，以实现对彩色图像的合理预处理。
Then the experimental results show that the vector median filtering algorithm based on PCNN and HIS not only can effectively remove the noise, but also can protect the details of color image better.
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