orl_faces

此程序为matlab的噪声添加程序，可添加周期函数的噪声(matlab for noise adding)

用matlab编写的进行椭圆检测的算法，用到Hough变换(Using matlab for ellipse detection algorithm, Hough transform is used)

实现直角坐标系至极坐标系下的图形图像变换。本方法为最新的快速变换方法，可应用于相位相关下的带旋转平移、缩放等变换。(the method can transform pic to radan.it can be used by PC to get the roation.)

通过一阶重建方法实现总变差的图像算法源码，希望对学习超分辨率的朋友有所帮助。 (Algorithms and software for total variation image reconstruction via first-order methods)

matlab实现的图像金字塔，过程很清晰，简单易学(matlab implementation of image pyramid, the process is very clear and easy to learn)

这篇是96年的水印论文，全英文版，中文题目：一种安全强大的扩频水印技术(This is a 96-year watermark papers, all in English, Chinese subjects: a safe and powerful Spread Spectrum Watermarking)

该程序实现了相位编组法检测，可以将灰度缓慢变化的边缘提取出来(Realize the process of phase formation assay can be gray-scale changes in the edge of the slow extracted)

二进小波多级分解。基于二进小波的图像度尺度分解和边缘检测，效果还行。(into two multi-level wavelet decomposition. Based on Wavelet Image degrees scale decomposition and edge detection, the results were OK.)

生成avi视频截图序列。设置截图时长，截图频率，截图类型的参数。(Generate avi video sampling sequence.Screenshot duration, frequency and types of parameters are allowed to set freedom.)

说明：  对二维码识别进行预处理的二值化，平滑以及角度和畸变的校正等(qr code pre.)