find_-contours

本代码主要关于摄影测量中的单向空间后方交会(resection of photogrammetry)

点云三维重建中需要用的法向量计算，能够有效避免法向量不一致的问题，更好进行三维重建。测试有用。(Normal vector calculation point cloud reconstruction in need, and can effectively avoid the problem of inconsistent normals, better three-dimensional reconstruction. Useful for testing.)

解决图像的DCT变换与逆变换，为JEPG压缩做铺垫(To solve the image DCT transform and inverse transform, in order to pave the way for JEPG compression)

好东西，下下来看就知道了好东西，下下来看就知道了(Good things, under the terms of the next good thing to know, under the circumstances of view to know)

利用matlab的gui设计的带有输入和输出功能的界面图形，可视性很强，学习非常值得(The interface graphics with input and output functions designed by GUI of MATLAB have strong visibility and worth learning.)

说明：  基于BP网络的印刷体数字识别技术的完整案例，对图像处理及其BP神经网络付有完整的程序，并可以允许，同时还附有大量的测试图片(Digit recognition technology integrity cases, right image processing and neural network BP to pay the full process and allows, but also with a large number of test pictures)

一个类似ACDSee的看图工具，可以察看很多种格式的图形文件。由ISee开发组提供(ACDSee pictures of a similar tool, you can see a variety of graphics file formats. ISee provided by the development team)

Space structure with static analysis % elastic beam element space structure with static analysis, elastic beam element

能够检测椭圆，并且在已知摄像机安装高度和倾角的情况下实现单目测距，代码能够运行(Ellipse can be detected, and the camera installation height and in the case of the known inclination to achieve monocular ranging code to run)

刚才传的所有程序试验处理的图像(passed the test procedures to deal with all the images)