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OpenCV Tutorials —— Detection of planar objects
这篇教程其实是上一篇的总结 ,利用 features2d 和 calib3d 模块来发掘场景中的物体 ~~ 1, Create a new console project. Read two input images. Mat img1 = imread(argv[1], CV_LOAD_IMAGE...
分类:其他好文   时间:2014-11-27 10:33:36    阅读次数:215
OpenCV Tutorials —— Features2D + Homography to find a known object
通过特征检测和单应性匹配来发掘已知物体 ~~ Use the function findHomography to find the transform between matched keypoints. Use the function perspectiveTransform to map t...
分类:其他好文   时间:2014-11-27 09:10:48    阅读次数:399
OpenCV Tutorials —— Feature Matching with FLANN
Extractors of keypoint descriptors in OpenCV have wrappers with a common interface that enables you to easily switch between different algorithms solv...
分类:其他好文   时间:2014-11-26 22:31:38    阅读次数:730
OpenCV Tutorials —— Feature Detection
FeatureDetector::detect Detects keypoints in an image (first variant) or image set (second variant). FeatureDetector::create The following detector ty...
分类:其他好文   时间:2014-11-26 22:16:39    阅读次数:190
iOS 6 By Tutorials ---第二章--【第一弹】--【翻译】
Chapter 2 :Programming in Modern Objective-C By Matthijs Hollemans第二章:最新的OC编程Old habits die hard, but if you’re still writing Objective-C in the styl....
分类:移动开发   时间:2014-11-26 20:37:16    阅读次数:296
OpenCV Tutorials —— Creating yor own corner detector
Use the OpenCV function cornerEigenValsAndVecs to find the eigenvalues and eigenvectors to determine if a pixel is a corner. Use the OpenCV function c...
分类:其他好文   时间:2014-11-26 18:42:32    阅读次数:400
OpenCV Tutorials —— Detecting corners location in subpixeles
亚像素精度(更加精确) ~~ void cornerSubPix(InputArray image, InputOutputArray corners, Size winSize, Size zeroZone, TermCriteriacriteria) Parameters: image – In...
分类:其他好文   时间:2014-11-26 18:34:59    阅读次数:291
超详细的java反射教程
看技术博客时,看到关于java反射的博文,写的非常好。猛击下面的地址,开始java反射之旅中文翻译地址:http://ifeve.com/java-reflection/英文原版地址:http://tutorials.jenkov.com/java-reflection/index.html
分类:编程语言   时间:2014-11-26 18:10:54    阅读次数:213
OpenCV Tutorials —— Shi-Tomasi corner detector
Shi-Tomasi 算法是Harris 算法的改进。 Harris 算法最原始的定义是将矩阵 M 的行列式值与 M 的迹相减,再将差值同预先给定的阈值进行比较。后来Shi 和Tomasi 提出改进的方法,若两个特征值中较小的一个大于最小阈值,则会得到强角点。 void goodFeaturesTo...
分类:其他好文   时间:2014-11-26 17:57:58    阅读次数:969
OpenCV Tutorials —— Harris corner detector
Harris 角点检测 ~~ Why is a corner so special Because, since it is the intersection of two edges, it represents a point in which the directions of these t...
分类:其他好文   时间:2014-11-26 16:04:47    阅读次数:253
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