若干次压缩后图像信噪比的变化情况，有子程序实现

koch分形 这是直线的koch分形代码 现欲求三角形的雪花源代码-koch

用于图像处理的一些代码-for some image processing code

图像的领域处理 ，图像平滑，一阶微分边沿监测，二阶微分边沿监测。-The field of image processing, image smoothing, the first-order differential edge monitoring, monitoring of second-order differential edge.

印章图像处理，分别提取两类不同的特征，使用时直接将代码拷贝到需要使用的地方即可。-stamp image processing, respectively, from two different characteristics when used directly to the copy of the code needs to be used in place.

3D表面图绘制，简单实用-3D surface mapping, simple and practical

本人收集的人脸识别最新资料，从08年到09年，包含各种人脸识别的优秀算法，PCA,HMM,2DPCA,KDDA,一共20个文件，需要安装CAJ阅读器阅读，是不可多的学习和研究的参考资料（不是源码，算法详细）-I gather the latest information for face recognition, from 2008 to 2009, contains an excellent variety of face recognition algorithms, PCA, HMM, 2DPCA, KDDA, a total of 20 files, need to install CAJ readers to read, is not more than study and research references (not the source, the algorithm in detail)

一个不错的改变屏幕分辨率的例子-a good change screen resolution of the case

DDA画线算法, 此处加上了延时，更便于观察画线过程，演示效果好。-DDA line drawing algorithm, here coupled with the delay, but also easy to observe the process of drawing lines to demonstrate good results.

本代码可以生成并显示分形图像。-the code can generate and display fractal images.

实现函数imdilate的膨胀效果，自己编写的matlab函数实现。-Imdilate realize the expansion of function effect, I have written matlab function.