随笔分类 - OpenCV

StereoBM::disp12MaxDiff Crash the Release

摘要：Initializing "cv::StereoBM bm.state->disp12MaxDiff" should be careful, inappropriate value might crash your program. Suggested that you set it to -1 t... 阅读全文

posted @ 2015-03-25 06:11 Grandyang 阅读(948) 评论(0) 推荐(0)

cvSave in VS2010 or Linux

摘要：cvSave这个函数是OpenCV中用来保存某个数据类型到文件中常用的函数，它原本共有五个参数，但是在VS2010中只需要填前两个，而在Linux必须填满五个，否则会出错，如下：// VS2010cvSave("m.xml", mat);// LinuxcvSave("m.xml", mat, NU... 阅读全文

posted @ 2015-03-21 07:11 Grandyang 阅读(674) 评论(0) 推荐(0)

Write cv::Mat to a file

摘要：如果我们想把OpenCV中的矩阵数据类型cv::Mat保存在一个文件中，可以使用如下的代码：void writeMatToFile(cv::Mat& m, const char* filename) { ofstream fout(filename); if(!fout) { ... 阅读全文

posted @ 2015-03-20 23:33 Grandyang 阅读(5128) 评论(0) 推荐(0)

OpenCV 2.4.10 Linux Qt Conifguration

摘要：Download CMake 2.8.12Extract the file, and run "./bootstrap", then "make", then "sudo make install"Add some dependencies, run "sudo apt-get install bu... 阅读全文

posted @ 2015-03-14 08:48 Grandyang 阅读(531) 评论(0) 推荐(0)

OpenCV2.4.10 Mac Qt Configuration

摘要：Download OpenCV 2.4.10Download CMake 2.8Open CMake and choose the source code directory and build binary directoryThen click "Configure", and "Generat... 阅读全文

posted @ 2015-03-14 06:01 Grandyang 阅读(667) 评论(0) 推荐(0)

OpenCV count the number of connected camera 检测连接的摄像头的数量

摘要：有时候在项目中我们需要检测当前连接在机子上的摄像头的数量，可以通过下面的代码实现，其中连接摄像头的最大数量maxCamNum可以任意修改：/** * Count current camera number */int countCamera() { int maxCamNum = 5; ... 阅读全文

posted @ 2015-03-12 03:51 Grandyang 阅读(1109) 评论(0) 推荐(0)

OpenCV 2.4.11 VS2010 Configuration

摘要：Add in the system Path:C:\opencv\build\x86\vc10\bin;Project->Project Property->Configuration Properties->VC++Directories ->Include Directories:C:\open... 阅读全文

posted @ 2015-03-12 01:49 Grandyang 阅读(2721) 评论(0) 推荐(0)

Qt 5.4 OpenCV 2.4.11 Win 32 Configuration

摘要：Download CMake 2.8.2Download OpenCV 2.4.11Download Qt 5.4Highly improtant note: The installation directory should not contain any space or non-English... 阅读全文

posted @ 2015-03-11 04:29 Grandyang 阅读(975) 评论(0) 推荐(0)

OpenCV show two cameras 同时显示两个摄像头

摘要：用OpenCV同时显示两个摄像头的内容的代码如下：#include #include #include #include #include #include using namespace std;int _tmain(int argc, _TCHAR* argv[]) { CvCapture... 阅读全文

posted @ 2015-02-27 04:48 Grandyang 阅读(3742) 评论(0) 推荐(0)

IplImage 与 QImage 相互转换

摘要：在使用Qt和OpenCV编程时，对于它们各自的图像类QImage和IplImage难以避免的需要互相之间的转换，下面我们就来看它们的相互转换。1. QImage 转换为 IplImageIplImage *QImageToIplImage(const QImage * qImage){ int... 阅读全文

posted @ 2015-02-21 01:46 Grandyang 阅读(2096) 评论(0) 推荐(0)

CvMat and cv::Mat

摘要：CvMat:typedef struct CvMat{ int type; int step; /* for internal use only */ int* refcount; int hdr_refcount; union { uchar... 阅读全文

posted @ 2015-02-06 04:12 Grandyang 阅读(2377) 评论(0) 推荐(0)

[转帖] CvMat，Mat和IplImage之间的转化和拷贝

摘要：原文地址： http://blog.csdn.net/holybin/article/details/17711013在OpenCV中Mat、CvMat和IplImage类型都可以代表和显示图像。 IplImage由CvMat派生，而CvMat由CvArr派生即CvArr -> CvMat -> I... 阅读全文

posted @ 2015-02-05 00:44 Grandyang 阅读(3547) 评论(0) 推荐(0)

Configuration of OpenCV2.1.0 with VS2010

摘要：Add in the system Path:C:\Program Files (x86)\OpenCV-2.1.0\build\bin\DebugProject->Project Property->Configuration Properties->VC++Directories ->Inclu... 阅读全文

posted @ 2015-01-29 01:20 Grandyang 阅读(237) 评论(0) 推荐(0)

OpenCV学习链接

摘要：Creating a video with OpenCV 阅读全文

posted @ 2014-12-04 14:25 Grandyang 阅读(307) 评论(0) 推荐(0)

Video Codecs by FOURCC 视频格式编码

摘要：FOURCCNameSummary1978A.M.Paredes predictorThis is a LossLess video codec. >>>2VUY2VUY / BlackMagic>>>3IV03ivx3IV0 no longer used for this codec, howev... 阅读全文

posted @ 2014-12-04 07:32 Grandyang 阅读(3823) 评论(0) 推荐(0)

OpenCV Show Image cvShowImage() 使用方法

摘要：新版的OpenCV在所有的函数和类前都加上了cv或Cv，这样很好的避免了区域污染（namespace pollution），而且不用在前面加‘cv::’，非常的使用。像之前的imshow()函数被现在的cvShowImage()所替代，现如今在OpenCV中显示一张图片可用如下代码：C API:Ip... 阅读全文

posted @ 2014-11-21 00:08 Grandyang 阅读(20807) 评论(0) 推荐(0)

OpenCV IplImage FlyCapture2 Image Conversion 两种图像类的相互转化

摘要：OpenCV的IplImag和 FlyCapture2 的 Image是两种常见的图片格式，在实际的应用中，我们通常要混合使用OpenCV和FlyCapture2这两个SDK，所以这两种图片格式之间的相互转换就是经常需要做的。首先分别来看看两种图片类的定义：IplImage:typedef stru... 阅读全文

posted @ 2014-11-20 09:03 Grandyang 阅读(3346) 评论(1) 推荐(1)

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