Use OpenCV for contour extraction, very good use! OpenCv for the beginner who is...

种子填充法： 1、原理：将区域内的一点(种子)赋予给定的颜色，然后将这种颜色扩展到整个区域内 -Seed filling: 1, Principle: The region that (seeds) to give a given color, the color and then extended to the entire region

本源码包含了多种模式识别算法，针对同一次手写的数字，进行各种算法识别，可以比较各种算法的识别效果。-The source code contains a variety of pattern recognition algorithms, for the same handwritten figures, a variety of algorithms to identify, can compare the various algorithms to identify the effect.

功能：将图中所有直线的端点的Z座标均改为0。用途：用于处理PKPM软件形成的图中两直线不能fillet的问题。-Function: to map all of the Z line endpoint coordinates are changed to 0. Uses: PKPM software used to deal with the formation of two straight line graph should not fillet problem.

用VC写的在图上画坐标轴并由函数确定来不断更改坐标轴上的数据。- Writes with VC the picture coordinate axis and determined on the chart by the function unceasingly changes in the coordinate axis the data.

VC6下VTK体绘制，然后boxwidget多角度任意切体数据-VTK volume rendering under VC6, and then arbitrarily cut boxwidget multi-angle data

using dct in watermark

计算机图形学之三次B样条曲线的绘制源码及其程序。-Computer graphics of the three B-spline curve drawing source and its procedures.

vrml交互实例。 简单的台灯，可以任意转动，开灯关灯等的交互，门的开关，颜色变换等-vrml interactive examples

用于将MNIST数据文件转换成bmp图像和txt文件的matlab程序，程序中有详细注释说明，简单易用。已经测试过，正确无误。-Matlab code for translating MNIST data set files to bmp pictures and txt files. It has been proved to be correct through test.

将BMP图像转换为JPG图像-of BMP images converted to JPG images