Filestorage: how to save Mat with more columns
Filestorage used like like this Mat G; ... FileStorage file_func_g_comp("func_g_comp.xml", FileStorage::WRITE); file_func_g_comp << "MyData" << G; file_func_g_comp.release(); stores data in...
View ArticleCircle detection with HoughCircles v3.1.0
I'm experimenting with the sample code at https://github.com/opencv/opencv/blob/master/samples/cpp/tutorial_code/ImgTrans/HoughCircle_Demo.cpp , but I'm can't figure out how to use HoughCircles to...
View ArticleDoes imshow work using OpenCV 3 on ios?
I am trying to produce the Simple Blob Detector in iOS using OpenCV. I get an error related to highgui not being installed. When I comment out the code, the offender is imshow. imshow("keypoints",...
View ArticleConfidence in Face Recognition
Can someone explain to me basically how the confidence is calculated in the Eigenfaces, LBPH and Fisherfaces methods from the OpenCV Contrib modules? Is it calculated based on the distance? Thanks in...
View ArticleHow do I convert urllib parameters to urllib3?
Hi everyone, This code makes the URLs of the images contained in the link, be resized and saved in a folder. The code is not mine, but I intend to use it as the basis for my project....
View ArticleAny way to implement waitkey for java
Please help m ... I want to use waitkey in java program but i read documentation too but i cant find the waitkey(). So please help m or tell m how to use waitkey function in java ... Thanks in advance...
View Article31 linkage errors while building OpenCV_world dll on VS2013 with Qt
While building opencv_world as a DLL, Visual Studio shows me 31 linkage errors: Error 28 error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall...
View Articleblender animation
I have multiple tracks of animation in the action editor, but the programmer for Unity is asking me to put ALL animations into ONE track and just mark off each animation on the timeline? Is there an...
View ArticleConvert void buffer pointer to Mat
I have a module which receives a void pointer to a buffer. The original data type is uint16. When I try putting the variable into a Mat, I get weird errors from Mat imBuff = cv::Mat(628, 314, frame,...
View ArticleInterpretation of color parameter
I've tested a code sample which uses circle(), but what surprises is me that the RGB-color parameter passed with Scalar(0, 0, 255) is interpreted as RED. It turns out that the color parameter is...
View Article"has no symbol" error on Mac
1) Latest code from master 2) Mac 10.11 3) XCode 8.0 I want to generate static library for my Swift program. following error reported during "make". static library can be generated and "sudo make...
View ArticleWhat better way of passing extra parameters to compile?
I am compiling OpenCV in order to make it more optimized possible to run on Cortex-A53 processor in a NanoPI M3 produced by FriendlyARM. I have used in my projects the following keys: -mtune=cortex-a53...
View ArticleJava + Netbeans - Error: "no opencv-310.jar in java.library.path"
I am trying to use opencv with java, but im having some issues. When i tried to run some code i got the error: "no opencv-310.jar in java.library.path". I've tried to set the "-Djava.library.path =" to...
View ArticleHow to select package type on build distribution processes
When compiling OpenCV the package creation process creates three packages type, as must be done to select only a specific package type in the building?
View ArticleSelecting the name of the package to be created during the building process...
The packet creating proceso for distribution creates three packets being two type tar and a third compressed binary type in a shell file. how can I select the name of these files created or intervene...
View ArticleWhat does the function compute from stereobm do?
Hey, is it possible to see the exact code of the compute function in the stereobm example? I'm struggling to find it.
View ArticleCannot open some video files in OpenCV 2.4.13 for Java
Hi, I have a problem regarding opening video files. I recently created an .avi-file from a bunch of images that I had taken from a camera. When I tried to open this using the following line of code,...
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The Atlanteans were destroyed. There are at least two good reason for this: first, the fact that all of the leaves have dropped off of your bonsai is a good sign that it has entered dormancy and,...
View ArticleEdit video with picture
Hi guys, I'm really new to opencv, but I need to get something done urgently. I have this video on my android app, in this video, I want to replace the head of an individual on the video with the...
View ArticleHow to integrate OpenCV with DEV c++ and display an image stored in disk.
Please provide proper discription,
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