polygon processing Boolean operation code and the original note

这是有关数字图像处理的几篇论文，涉及到Matlab 和Labview，学习图像的同学可以参考一下。-It is about digital image processing of several papers related to Matlab and Labview, students study the image for reference.

awimg=rgb2gray(im1) tic [accum, circen, cirrad] = CircularHough_Grd(rawimg, [20 30],5,50) circen toc figure(1) imagesc(accum) axis image title( Accumulation Array from Circular Hough Transform ) figure(2) imagesc(rawimg) colormap( gray ) axis image hold on plot(circen(:,1), circen(:,2), r+ ) for k = 1 : size(circen, 1), DrawCircle(circen(k,1), circen(k,2), cirrad(k), 32, b- ) end hold off title([ Raw Image with Circles Detected , ... (center positions and radii marked) ]) figure(3) surf(accum, EdgeColor , none ) a

计算几何经典算法集合，包括旋转卡壳求凸包，求重心，多边形面积，多边形周长，直线方程等-Collection of classical computational geometry algorithms, including the rotating卡壳for convex hull, and center of gravity, polygon area, polygon perimeter, linear equations, etc.

本原代码集是我对计算机图形学的编程实践，包括画直线、反走样直线、画圆、画椭圆、画矩形、画多边形、矩形填充、多边形填充、3D变换、光照、贴图等-primitive code sets for my computer graphics programming practice, including painting line, anti-aliasing straight Circle, painted oval, rectangular painting, drawing polygon, rectangle filling, polygon filling, 3D transformation, lighting, textures, etc.

中值滤波，对图像在Visual C++下处理，对于刚入门学习VC处理图像来说是一个很好的学习工具-Median filtering, the images dealt with under the Visual C++ for beginners learning VC image processing is a good learning tool

use the dct in watermark

手写数字识别，能识别0-9，识别精度高，程序简单-Handwritten numeral recognition, to identify 0-9, identification of high accuracy, simple

HomoFilt.m 同态滤波器 ExGrey.m 灰度拉伸 Split.m 图象分割 ReadPic.m 读Pic图-HomoFilt.m homomorphic filter ExGrey.m tensile Split.m gray image segmentation ReadPic.m Fig Reading Pic

< matlab教程7.1>>中所有matlab源程序

一个很有用的数字图象HOUGH变换的源代码-very useful in a digital image HOUGH transform source code