无刷新仿google波形扭曲彩色Asp.net验证码 无刷新：也就是一般网站都有的“看不清，点击更换”、“更换验证码”的那种功能 波形扭曲：类似google验证码，这个能更有效的防止验证码被机器人攻破，具体的扭曲程度可以自行设置（正弦曲线Wave扭曲图片产生波形滤镜效果） 彩色：字符颜色都是随机的 大小写：也是随机的，当然为了输入方便没有对大小写进行限制，也可以自己修改哦-Google refresh waveform without distortin

medium filter is used for image proce-medium filter is used for image process

This a gabor filter for enhancement of fingerprint image. If need any correction mail me.-This is a gabor filter for enhancement of fingerprint image. If need any correction mail me.

We first present the Hypothesis Selection Filter in a general setting. For a given image enhancement problem, suppose we have selected a set of image filters each of which is effective in improving the image quality for a certain type of cont