OpenCV in WPF aplicattion Visual Studio (C#)
Hello everyone. First of all thanks for watching my question! I would like to use OpenCV library in WPF aplicattion Visual Studio 2015 which the lenguage programing is just C#. Is it possible to use...
View ArticleReference footage for people
Hello everyone, I am building a passenger tracking system and have gotten pretty far :-) my system can detect already lots of different things id say mostly 75% accuracy but what i wanted to ask was if...
View ArticleExtracting bpp without explicitly mapping value to data types
Hi, I need to calculate the bits per pixel of a matrix and wonder if there is a decent method to extract the depth of an image in bits directly without explicitly mapping the types CV_8U,.... to the...
View ArticleDebug assertion fail when using grayscale
I am trying to make a hand recognition system but when i used grayscale for cvtColor, i get debug assertion fail but when i use HSV the code works fine. Can you resolve this ? I am a newbie in opencv....
View ArticleSelectROI unhandled exception:Access violation reading location
I am using opencv 3.1.0 and VS 2013 I am trying to track objects from video file but whenever I selected my ROI I got the following errors.> Debug Assertin Failed! Expression:> invalid null...
View ArticleImprove depth map quality
Hello all, I'm approaching to the ComputerVision and to OpenCV in these months. What I'm doing is create a stereo camera in order to obtain informations about an object (a cilindere more or less, with...
View Articlehow to find matching image
Hello, i want to extract similar image from vocabulary that was created in above code.this code run successfully creating two descriptors file.My question is that I don't understand that file...
View ArticlePassing an array of cv::GpuMat to a cuda kernel?
I'm trying to write my own cuda kernel but I can't find a way to pass an array of `cv::GpuMat` to the cuda kernel. Here is what I have until now: __global__ void somename(cv::cuda::PtrStepSz...
View ArticleSet a threshold in MulticlassSVM
I am currently testing my system(hand recognition system). It is identifying unknown gestures as known gestures, I mean that gestures that are not in my training data is being identified as one. Why is...
View Articleplease help me with the tutorials and algorithms which i should go through...
[link text](https://www.youtube.com/watch?v=8A7vfMP0r7s) [link...
View ArticleCombining FisherFaces and LBPH to improve accuracy
Hi everyone, i’m trying to implement a face recognition system for a video surveillance application. In this context test images are low quality, illumination change from an image to another, and,...
View ArticleWhat happened to cv2.NormalBayesClassifier python API?
Hi there, Does anyone know why OpenCV 3.X+ does not include the python API for the Normal Bayes Classifier anymore? I can still use version 2.9 but I don't want to be tied back to using an older...
View ArticleGaussianBlur ksize - correlation with image size
Hello, I wrote an algorithm that applies GaussianBlur on several images of different size. I read that GaussianBlur's ksize has to be odd and the same so I tried (5, 5) which works for some images but...
View Articleprinted circuit board component image recognition
Hi, I would like to use opencv to detect printed circuit board components in a camera image. What technologies/approaches would you advise? Thus far I've tried simple template matching with...
View ArticleRetrieve data from CvSeq
Hello, I have a structure of the type CvSeq* and I want retrieve data from it. Each line is composed of N element The code is: CvSeq *imageKeypoints = 0, *imageDescriptors = 0; int i; CvSURFParams...
View ArticleBaseRowFilter and BaseColumnFilter in opencv 3.x
I have some old code which I would like to use/port: template struct RowSum : public BaseRowFilter { RowSum( int _ksize, int _anchor ) { ksize = _ksize; anchor = _anchor; } void operator()(const uchar*...
View ArticleRecompile just one module
Hi all, I would like to modify the objectdetect module to expand its capabilities. I was wondering if it is necessary to recompile everything from source or if it exist a way to compile just that...
View ArticleView User's Journal
These days we wish to provide you the newest hack for extremely well-known and nicely-identified game which is Pixel Gun 3D! All of the alterations are usually made totally cost-free, and so you will...
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It may seem as if it is that you versus the planet sometimes in relation to working with forex currency trading. Together with the large number of real information available online, it may be...
View ArticleRules And Suggestions For Producing Cash With Foreign exchange
Knowing and getting into track on your own, is very important in carrying out the identical with all the industry of investing. Developing fiscal targets, aid individuals to succeed in fx trading....
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