用验证码实现的验证码，最基本的例子！

摘　要:舌象中的裂纹是中医舌诊中的重要内容。由于拍摄条件的不同,舌象质量有较大差异,传统的阈值选取方法并不 适用。文中提出一种舌象裂纹检测的自适应阈值选择方法。该方法利用舌象的L 3 a 3 b 色彩特征及区域的分裂- 合并, 对舌象进行区域分割,自适应地选取舌中部区域的色彩值作为阈值,对整个舌象进行裂纹提取。经验证,本方案对不同的 舌象能较好地提取出裂纹,实现舌象裂纹诊断的客观化。-Tongue’ s crack is a very important part of herbalist doctor diagnosis. For the different screen conditions , there are many differ2 ences on the tongue’ s quality. It is not effective to use the t raditional threshold ext raction algorithm. In order to solve this problem , pro2 pose a new adaptive threshold algorithm. Present the segmentation of the image of tongue by using the feature on tongue in the L 3 a 3 b color space and the split- combining algorithm. Then use the threshold , which is the color value ext racted automatically in the middle of the tongue , to detect the crack of the whole tongue. The experiments show that this approach is able to distill the crack effectively to different tongue images , and achieve the objectivity of the diagnosis based on the tongue’ s c

1.了解离散傅立叶变换及离散余弦变换的基本原理； 2.掌握进行FFT及逆变换的方法； 3.了解图像在频域中处理方法，应用MATLAB语言作简单的低通滤波器。 -1. Understand the discrete Fourier transform and discrete cosine transform the basic principle; 2. master for FFT and inverse transform; 3. understanding of image processing in the frequency domain method, MATLAB language for simple low-pass filter.

Delphi编写的屏幕放大程序，能放大特定区域，并能调节放大倍率-Delphi procedures for the preparation of the screen to enlarge, can enlarge a specific area, and can adjustable magnification

本程序提供了强大的图像处理功能，包括颜色变换、直方图及其均衡化、对比度变换、分割、轮廓提取、FFT/DCT、各种滤波等，能为图像处理研究者提供参考。-this procedure provided a powerful image processing functions, including color transformation, and histogram equalization. Contrast transformation, segmentation, contour extraction, FFT/DCT, various filtering, Image processing can provide reference for researchers.

图像变换算法，本代码实现普通DCT，快速DCT,快速IDCT算法-Image transform algorithm, the code to achieve common DCT, fast DCT, fast IDCT algorithm

Delphi也玩特效,简单的图片处理程序-Delphi also play effects

一个指纹识别C语言代码，可编入vc6.0实现。与大家分享。-A fingerprint identification C language code can be incorporated into the vc6.0 realize. To share with you.

图像的几何变换，是本人原创的程序，经典，适合于初学者的理解-images of geometric transformation, I was the original procedure, classic, suitable for beginners understanding

2d图像特效中大名鼎鼎的plasma，应该很熟悉吧，这个是delphi的一个实现-2d images of the famous magic plasma, should be very familiar with it, this is a realization of delphi

有关人脸检测的程序，对于给定的图像进行自动人脸检测，挺好用的。-The face detection procedure for a given facial image auto-detection, quite good use.