light_preprocess

代码说明：

  该代码是对人脸进行光照处理，先进行gamma变换，然后进行Dog双边滤波，然后进行灰度亮度的均衡。该方法能够有效提高光照变化的情况下的系统识别性能(The code is the human face of light treatment, the first for gamma conversion, and then Dog bilateral filtering, then the brightness of the gray balance. The method can effectively improve the illumination changes in the case of system identification performance)

文件列表：

amfg07-demo-v1
..............\02463d254.pgm,19515,2006-11-23
..............\02463d282.pgm,19515,2006-11-23
..............\Addreadme.txt,138,2013-08-21
..............\contents.m,1537,2007-09-18
..............\demo.asv,4032,2013-08-21
..............\demo.m,4026,2013-08-21
..............\dist_chi2.m,806,2007-09-18
..............\dist_lbp_disttrans.m,2557,2007-09-17
..............\fftcoord.m,435,2006-11-26
..............\gauss.m,125,2005-05-24
..............\gaussianfilter.m,507,2006-12-04
..............\is_uniform_pattern.m,236,2007-09-17
..............\lbp_histo.m,149,2007-02-12
..............\lbp_image.m,1081,2007-09-17
..............\lbp_image_set0.m,327,2007-09-17
..............\lbp_image_set2.m,828,2007-09-17
..............\LICENSE.txt,23211,2007-09-17
..............\ltp_image.m,1287,2007-09-17
..............\ltp_image_set0.m,287,2007-09-17
..............\ltp_image_set2.m,790,2007-09-17
..............\mask.mat,845,2006-11-27
..............\preproc2.m,4344,2013-08-21
..............\README.txt,973,2007-09-18
..............\uniform_pattern.m,406,2007-09-18
光照预处理.pdf,2856668,2013-08-21
基于改进型LBP特征的人脸识别方法研究.pdf,1466185,2013-08-21