利用matlab和modelsim完成了用直方图均衡化处理灰色图片的前仿真，有处理前后图片的对比，verilog语言编写，但到用实时处理还差很远-Completed using matlab and modelsim deal with the gray image histogram equalization before the simulation, a comparison of before and after pictures, verilog language, but with

Using matlab to calculate the Mahalanobis distance for the image, Comparison of soft threshold and hard threshold and today various threshold calculation method, It draws on principal component analysis algorithm (PCA).