NPD人脸检测主要内容： 1.图像特征：Normalized Pixel Difference(NPD)，存在查找表中。 2.特征筛选：deep quadratic tree 3.分类：soft cascade classifier
资源文件列表
NPDFaceDetector/DetectFace.m , 5776
NPDFaceDetector/DetectFace_Demo.m , 522
NPDFaceDetector/DetectFDDB_Demo.m , 2470
NPDFaceDetector/DrawRectangle.m , 868
NPDFaceDetector/lena.jpg , 91814
NPDFaceDetector/model_frontal.mat , 182521
NPDFaceDetector/model_unconstrain.mat , 6618560
NPDFaceDetector/NPDScan.cpp , 9497
NPDFaceDetector/NPDScan.mexw64 , 16896
NPDFaceDetector/Partition.m , 1780
NPDFaceDetector/ReadList.m , 860
NPDFaceDetector/README.txt , 1368
NPDFaceDetector/LICENSE , 387