beat of the fire, very pretty, with the written language c

橡皮区矩形CRectTracker c#实现-rubber rectangular area CRectTracker c#

对于一些图像来说，常用的边缘检测算法有时候无法设立合适的阈值将它们的梯度较小的模糊边缘检测出来。为了解决这个问题，有两种解决方法：将图像方差标准化，拉大模糊边缘的梯度值，或通过设置sigmoid函数，将像素所在区域的信息传递到梯度值中去，对其进行调整，就能找到合适阈值，有效地将模糊边缘提取出来。本程序把这两种算法实现并与与传统算法进行了比较。-For some images, the commonly used edge detection algorithm sometimes can not be an appropriate threshold for the gradient of their smaller fuzzy edge detected. To solve this problem, there are two solutions: the image variance standardization, widening the fuzzy edge of the gradient value, or by setting the sigmoid function pixel region to disseminate the message to the gradient values to adjust, on the can find a suitable threshold, effectively extracted fuzzy edge. This procedure of these two algorithms with the traditional algorithm.

De Boor s algorithm is a generalization of de Casteljau s algorithm. It provides a fast and numerically stable way for finding a point on a B-spline curve given a u in the domain.

自己先了一个关于VGA显示的verilog代码，该代码实现的功能主要是显示屏的几种颜色的显示。由于自己写的，希望对于那些初学FPGA者有些许的帮助

按所需的颜色显示不同的区域- According to color demonstration different region which needs

现在非codebehind方式下不能生成png图形，大家以后要用png就用codebehind方式吧-now under way not to be generated png graphics, since we used to use png codebehind style

图形学中一个简单的画圆程序-Graphics a simple procedure Circle

画椭圆的方法有很多，这是其中一种，用DDA算法画的-oval paintings are lots of ways, this is one of those painted with the DDA Algorithm

本源码是基于Keil MDK编写的。上面开发环境中没有keil的选项，不知道为什么？本程序可以直接运行在火牛STM32的开发板。是基于UCOS+UCGUI编写的。 -The source code is written based on the Keil MDK. The above development environment does not the keil option, do not know why? This program can run directly on the AC adapter the STM32 development board. Written UCOS+UCGUI.

非常有用的yuv格式转avi格式的转换程序。-Very useful yuv format to avi format conversion process.