setUseOpenCL
Hi, When I tried a simple face detection code in Java I ran into the foll for some images only: OpenCV Error: Assertion failed (retval == CL_SUCCESS) in...
View ArticleHeap memory corruption bug in C++ HoughLinesP function
In development environment of VS2010, opencv 2.4.11, Windows7-32bit, and an MFC GUI program, the HoughLinesP function always causes a heap memory corruption error in an automatic memory clearing stage...
View ArticleWhat is the algorithm of basic opencv image stitching (sift or surf )??
Hi, I am OpenCV beginner, and i want to stitch 2-images using opencv. So i am finding typical algorithm(sift, surf). But, I knew that opencv support image stitching(below). In this...
View ArticleIIR filter using opencv
Hi, Is there is a function to make an infinite impulse response (IIR)filter in opencv? Thanks to your answers
View ArticleHow to handle videos in anamorphic format?
Hello, I am working with AVCHD videos (MTS format). These videos have a native resolution of resolution of 1440x1080 pixels with a pixel ratio of 1.33:1 and aspect ratio 16:9. I found that they call...
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Michele FrazierEasy Guitar Lessons - What You Must Know
The Secrets And Techniques To Receiving The Most Out Of Your Yoga ExerciseExercise can be successful but only if it is approached effectively. Even workout routines like yoga will have Michele Frazier...
View ArticleProblem with OpenCV calibration module
I have been spending some time to get my camera calibration working using OpenCV module as documented...
View Articleimshow() shows the image after scanf_s()
Hello, I would like to get some user input after I show an image. But even though imshow() is being executed, it waits till the user input to show the image. I get an empty window until scanf_s() is...
View ArticleUsing calcOpticalFlowPyrLK with multiple user defined point
Currently, I had use the cv2.moment to get the center point of the targets, however when I apply calcOpticalFLowPyrLK to track these point, the tracking result is not very good, sometime it doesn't...
View ArticleHow to read/write video with OpenCV in Python?
I want to create a small test application, and I need to input/output video with OpenCV Python API. How can I do that?
View ArticleHow long does it take to build opencv with CUDA ?
How long does it take to build opencv 3.0 with CUDA 7.5 using VS 2013 on windows 10 (i7-5820K 16Go) with no example no test and no perf_test but with contrib. Now I can say after one hour it's not...
View Articlecannot open source file
Hello there, I followed tutorial in [On you pages](http://docs.opencv.org/3.0-beta/doc/tutorials/introduction/windows_install/windows_install.html) "Installation by Using the Pre-built Libraries"....
View ArticleBest solution for car approaching to the gate and anpr lib
Hi People, I am new to OpenCV and I am working a project to detect a car. This is a little different from the ones I found online. Check the brief description: 1-) In this project the car approaches...
View Articlehow do you plot graphs in opencv projects?
Hey guys, I was just wondering, there are cases where sometimes you need to plot a graph in real time within a project in order to keep track or evaluate data or for any other possible reason. At the...
View ArticleI'm getting a segmentation fault when building my library in Cygwin
Hi all, I am using Cygwin in Windows 7 and am having some trouble with building my OpenCV library. Here are my steps so far: - I downloaded the most recent stable version of the source (3.00) -...
View ArticleLooking for opencv 2.4.5 download
Hi all, I am in the process of installing opencv on my raspberry pi, and I need to install 2.4.5 specifically. However, I can't find the file to download (not on sourceforge as far as I can tell)....
View ArticleIs there anywhere XML-files already trained to detection most popular objects?
I found ready treained XML-files only for face and its details (haarcascades), and for human body (HOG): https://github.com/Itseez/opencv/tree/master/data Is there anywhere a (database) link to...
View Articleopencv SRUF implementation in java
I am getting error message while using surf in javacv , how to fix it. here is error message. OpenCV Error: Bad argument (Specified feature detector type is not supported.) in...
View ArticleFAST Response is 0
I am using 2.4.10 and the FAST keypoint response is always 0. Is this fixed in later releases? Additionally, If one were attempting to economize resources and improve matching, it would be prudent to...
View Articlewhat is the 'bestLabels' params in cv2.kmeans() ?
I use opencv3 in python. I confirmation this page ↓ http://docs.opencv.org/3.0-beta/doc/py_tutorials/py_ml/py_kmeans/py_kmeans_opencv/py_kmeans_opencv.html In this explain , cv2.kmeans() function...
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