人脸识别，基于2D的PCA结合2D的DCT分块-face recognition ,based 2DPCA and 2DDCT

用Matlab实现用LOT算法对2D图像进行压缩，并和DCT算法压缩进行对比，使用图像为girl.jpg-Achieved by using Matlab LOT 2D image compression algorithm and compression algorithm and the DCT were compared, using images girl.jpg

This sample class is designed to provide hashcode of 2D image. Image is converted to grayscale, shrink to 32x32 and then is calculated DCT which acts as a source for hashing.

利用霍夫曼编码进行图像压缩处理，此程序为霍夫曼编码的示例(The performance of a Huffman code is a function of the entropy of the signal distribution and therefore can be highly dependent in the transform domain in which the code is applied. For example, JPEG partitions an image