基于经典LBG算法的矢量量化的C语言实现，注释详尽，很容易让读者理清程序算法和思路。函数的功能和怎么调用，一目了然。-Based on the classic LBG vector quantization algorithm C-language implementation, comment in detail, it is easy for readers to sort out procedural algorithms and ideas. The function and how f