流星雨的源程序,运用该程序可以设计出你想看到的流星雨，很漂亮的-Meteor shower of the source, using the program can design you want to see the meteor shower, very nice

RGB LED display with soft-pwm This project demonstrates two things. 1. How to do 3-channel PWM when you only have 1 timer (eg ATTiny13) 2. How to produce an attractive light display with an RGB LED. It was originally designed as a

canny检测器是很有效的边缘检测器，该函数可以实现对目标图像的边缘提取。该方法总结如下：1.图像使用带有指定标准差的高斯滤波器来平滑，以此减少噪声；2.在每一点计算局部梯度和边缘方向；3.第二步中确定的边缘点会导致梯度幅度图像中出现脊，然后追踪所有脊的顶部，并将所有不再脊顶部的像素设置为0；4.执行边缘链接-canny detector is very effective edge detector, this function can be achieved on the target im

屏幕缺陷检测背景纹理拟合，用于LED mura缺陷检测(for p=1:1 [X,Y,Z]=random_point(img,0.5); C=coeffi(X,Y,Z); background=form(img,C); IMG=im2double(img); defect=IMG-background; img=defect; end defect=abs(defect); figure(2),imshow(img,[]),title('');)