refactor

序列匹配c++实现，可以帮助理解序列匹配算法(Sequence matching c++ implementation can help to understand the sequence matching algorithm)

convert bmp to rgb565(algorithm to handle all kinds of bmp to rgb565)

用于各种特征提取主成分分析法，如表情提取，人脸提取，识别分类等(For a variety of features to extract the principal component analysis (pca)，Such as expression extraction, face extraction, identification classification, etc)

基于hmm的人脸识别代码(based on face recognition code)

适合初学者的dsp图像程序，均值滤波程序、代码(Program for beginners DSP image, average filtering program, code)

VC++实现数字水印技术，在BMP位图中添加各种水印信息，程序分LSB和DWT嵌入方法。(VC++ implementation of digital watermarking technology, adding various watermarks in BMP bitmap, the program points LSB and DWT embedding methods.)

利用高速摄影仪记录了不同液滴撞击固体表面的形态变化过程，并探讨了液滴撞击参数撞击过程液滴形态的影响。(The processes of different droplets impacting the solid surface are recorded using a high-speed digital came and the effects of the impact parameters on the droplet impact are studied.)

点云三维重建中需要用的法向量计算，能够有效避免法向量不一致的问题，更好进行三维重建。测试有用。(Normal vector calculation point cloud reconstruction in need, and can effectively avoid the problem of inconsistent normals, better three-dimensional reconstruction. Useful for testing.)

一个十分有用的SSIM图像评测程序，基于结构的客观评测。(A very useful measure SSIM image procedures, based on the structure of an objective evaluation.)

说明：  <<数值模拟方法和运动界面追踪>> -刘儒勋 运动界面追踪的经典之作! ( numerical simulation and free surface tracking - Ru-xun liu a classic book!)