What is your recommended rendering of OpenCV when authors want to cite your...
To whom it may concern: What is your recommended rendering of OpenCVJ when authors want to cite your website? OpenCV (Open Source Computer Vision). 2016. http://opencv.org/ (Accessed on May XX, 2016.)...
View ArticleHow to draw histogram
Hi, How do i draw a histogram like the one in matlab ? http://www.mathworks.com/help/matlab/ref/histogram.html Is there a code with a few lines that draws a nice histogram like the one in matlab ? I...
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You Must Watch Virtual Reality Porn
Issues she sees in the VR porn industry: "Usually VR porn is fine," says Phoenix. "The problem I have is when a kid gets a hold of VR porn, what it teaches them." Kids who use VR porn as sex ed, says...
View ArticleAdd a public function to face recognition src-file
I have a c++ program from where I can create a LBPHFaceRecognizer, train it with with data, send an image for prediction etc. But now I want to customize lbph_faces.cpp. I can change/add private stuff...
View Articleidentifier "cvSubdivDelaunay2DInsert" is undefined
the code throws exception #include #include #include #include #include "PAW.h" #include "Triangle.h" #include #include #include #include #include #include #include /// //insert srcLandmark points in...
View ArticleHow to use opencv 3 with opencv_contrib
Hi I am trying to use opencv_contrib code with opencv 3. I am following this instructions here https://github.com/Itseez/opencv_contrib Step 2 says to select the opencv source code folder and the...
View ArticleGet object location from optical flow
In the first streaming camera frame (let it be frame A) I have found the location of a marker and performed solvePNP, so I can find the 3D pose of the marker. That works fine. For the next camera...
View ArticleSpline Interpolated Edge Detection of Satellite Imagery
I have never done anything with computer vision before, so forgive me a little bit here. I am a meteorologist with an interest in computer science, and I would like to experiment with computer vision...
View ArticleORB pyramid explanation
For ORB pyramid, anyone have some references/explanation on the code segment at https://github.com/Itseez/opencv/blob/master/modules/features2d/src/orb.cpp#L1041 I have downloaded books, lecture...
View ArticleUbuntu 16.04 X86_64, -DWITH_QT=ON, OpenCV 3.1.0
Using Ubuntu 16.04 X86_64 Desktop -DWITH_QT=ON andI get the errors below. -DWITH_QT=OFF and OpenCV and contrib build fine. uname -a 4.4.0-22-generic #39-Ubuntu SMP Thu May 5 16:53:32 UTC 2016 x86_64...
View ArticleHow I can dowload images and video samples in the tutorials?
How I can download images and video samples in the tutorials?
View ArticleORB harris corner detection matrix
I have a question on ORB harris corner detection matrix as below  May I know why two of the matrix entries go to ZERO ? Thanks !
View ArticleHow can i get color info from reconstruct() from SFM module (Opencv 3.1.0).
I am using Opencv extra module (opencv_contrib). From SFM module i am trying to get 3d point cloud using reconstruct(images_paths, Rs_est, ts_est, K, points3d_estimated, is_projective); , but this...
View ArticleFinding Bimodal Peak in Histogram
Hi, I'm trying to get the peak for a bimodal histogram. Here is the code and i just could not filter the last two int number=0; int size=0; for (int i=1; i<256-1;++i) {...
View ArticleImage acquisition techniques for Vision
Hi, I was wondering if anyone knows the different kinds of sensors being used in computer vision / image processing. For eg, i recently found out about [multispectral...
View ArticleTracking an Infrared LED or?
Doing a project at work and we need to have a user hold a stick. We need to track one end of this stick in real time and place a 3D particle system at that point. A HD webcam will record to a video...
View Articleestimate motion of ROIs in Image
Hello everyone. I am trying to detect in real time pedestrians with a camera mounted on a moving vehicle. My problem arises in the tracking phase. Basically, I am using the points in the point cloud...
View ArticleEdge detection based on line profile
Hi, I'm moving to OpenCV after using imagine processing techniques with the National Instruments Image acquisition and processing routines. There are a series of routines there for sample measurement...
View ArticleUsing custom opencv_ffmpeg*.dll version on Windows
From `opencv/3rdparty/ffmpeg/readme.txt`: > On Windows OpenCV uses pre-built> ffmpeg binaries, built with proper> flags (without GPL components) and> wrapped with simple, stable>...
View ArticleMultiple opencv 3 & IPP build issues
This post started out as a question, but morphed into a notification of multiple problems I had building opencv 3 with IPP "out of the box", and to provide a workaround, which works for me at least....
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