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OpenCV Tutorials —— Remapping
重定向,也就是把图像中的像素从一个地方对应到另一个地方 To accomplish the mapping process, it might be necessary to do some interpolation for non-integer pixel locations, since t...
分类:移动开发   时间:2014-11-21 18:24:17    阅读次数:155
OpenCV Tutorials —— Affine Transformations
仿射变换 Affine Transformation 1,It is any transformation that can be expressed in the form of a matrix multiplication (linear transformation) followed by...
分类:其他好文   时间:2014-11-21 18:03:05    阅读次数:184
【Cubian】set up
源:http://mirrors.163.com/.help/debian.htmlhttps://lug.ustc.edu.cn/wiki/mirrors/help/debian下载地址:http://docs.cubieboard.org/tutorials/cb2/installation/c...
分类:其他好文   时间:2014-11-19 10:41:51    阅读次数:161
OpenCV Tutorials —— Hough Circle Transform
Hough 圆变换 和 Hough 直线变换原理相同,只是参数空间不同 : In the line detection case, a line was defined by two parameters . In the circle case, we need three parameters ...
分类:其他好文   时间:2014-11-19 00:14:29    阅读次数:198
OpenCV Tutorials —— Sobel Derivatives
图像边缘 —— 像素灰度值变换剧烈的点 You can easily notice that in an edge, the pixel intensity changes in a notorious way. A good way to expresschanges is by using de...
分类:其他好文   时间:2014-11-19 00:08:24    阅读次数:308
OpenCV Tutorials —— Canny Edge Detector
最好的边缘检测子 Canny algorithm aims to satisfy three main criteria: Low error rate: Meaning a good detection of only existent edges. Good localization: The ...
分类:其他好文   时间:2014-11-19 00:02:06    阅读次数:256
OpenCV Tutorials —— Hough Line Transform
霍夫直线变换 —— 用于检测图像中的直线 利用图像空间和Hough参数空间的点——直线对偶性,把图像空间中的检测问题转换到参数空间,通过在参数空间进行简单的累加统计,然后在Hough参数空间中寻找累加器峰值的方法检测直线 Standard and Probabilistic Hough Line T...
分类:其他好文   时间:2014-11-18 23:57:43    阅读次数:580
OpenCV Tutorials —— Laplace Operator
发掘图像边界 —— 一阶导数顶点不好求,可用二阶导数过零点来代替 Getting the first derivative of the intensity, we observed that an edge is characterized by a maximum, as it can be s...
分类:其他好文   时间:2014-11-18 23:55:21    阅读次数:286
OpenCV Tutorials —— Basic Thresholding Operations
Threshold Binary This thresholding operation can be expressed as: So, if the intensity of the pixel is higher than , then the new pixel intensity is ....
分类:其他好文   时间:2014-11-18 23:53:21    阅读次数:292
OpenCV Tutorials —— Adding borders to your images
扩展图像边界: BORDER_CONSTANT: Pad the image with a constant value (i.e. black or BORDER_REPLICATE: The row or column at the very edge of the original is re...
分类:其他好文   时间:2014-11-18 23:44:20    阅读次数:338
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