OpenCV-Python used in commercial application
Hello, Is it required to publish the code that was written in OpenCV-Python free version, if used in a commercial application. By commercial application I mean an application sold for profit. If I...
View ArticleVisual Studio Reference
Hello Guys, hope you are doing great! I have a questions, is there a way to make a reference from my Visual Studio Solution to the Dlls if I place them in a separate directory? Right now it is...
View ArticleLoss of quality on saved image - open cv
I am doing some image modifying using open cv and when i save the image, i lose quality and it becomes very blurred and pixelated... I have tried using compression methods but doesnt seem to be...
View ArticleStatistical and Central Moments
How to compute the statistical and central moments in OpenCV ? I need help. Thanks!
View ArticlegetLinearRowFilter for floating rows
I have row kernel cv::Mat kernel = (cv::Mat_<< -0.5, 0.0, 0.5) And want filtering matrix with float values using not filter2D. Founded interface BaseRowsFilter and function implemented this,...
View ArticleOpenCV3: Lnk 2019 errors despite linking all libraries including the numerous...
I have a vc++ 32 bit console application I have all the paths set correct, all the libraries included including the numerous libs from staticlib directory. VSS 2013 target architecture is set to x64...
View Articleimread returns empty mat in examples
Hi, I'm working on a little robot with stereo camera which communicates with a server (to compute depth map / find obstacles) I want to try the stereo calibration example of OpenCV 3.0. I had some...
View ArticleVideostab and realtime videostab
Hello! I need to process video from webcam and stabilize it. I can't find any example or tutorial for videostab. Is this possible? I mean use videostab for this? Thanks!
View ArticleInstalling OpenCV Manager 3.0.0 on Android (phone + emulator)
Hi, I'm new to open cv and I'm trying to install the open-cv 15 puzzle app on my android emulator, using android studio. I've read online from other sites that the current cv manager isn't available...
View ArticleIs it the triangulation routine is correct? (OpenCV 3.0.0)
Hi, In the "triangulate.cpp" at line 84 we have: // preallocate SVD matrices on stack cv::Matx matrA; cv::Matx matrU; cv::Matx matrW; cv::Matx matrV; and A should be equals to U*W*V. So, isn't the...
View ArticleHow do i solve this in open cv 2.4.11(vs 2010)
View ArticleMerging / Combining separately trained Fisherface models
Hi, Is it possible to merge separately trained Fisherface models into one model? I am running into insufficient memory allocation and I was thinking maybe I could break down my training images into...
View ArticleTracking features over time with BRISK
For visual odometry, I want to track features over a sequence of frames. I tried tracking features with `cv::calcOpticalFlowPyrLK` in OpenCV 2.4, but I have the problem that these features drift (e.g....
View Articlecount the number of distinct object in a video
Hi, I have a video containig object moving with different speed. I would like to count how many object cross a line. For now I am able to track every object in a frame and I write the center of every...
View Articlecapture highest possible quality video and save it in a file using opencv 3.0...
Hello everyone, I'm very new to opencv and I want to 1) capture video highest possible quality video from my logitech webcam 2) save the captured video in a file 3) set resolution of 1980*1080 or...
View ArticleOpenCV 3.0 nonfree.hpp
Hi, In the transition guide to OpenCV 3 it says nonfree modules were removed, but I still found **/usr/include/opencv2/xfeatures2d/nonfree.hpp** in *opencv-contrib*. So I wanted to ask if this code...
View ArticleBrief Extractor
I am using BRIEF descriptor in my project, but I want to change the existing BriefDescriptorExtractor as my own function (like MyBRIEF.cpp) and call it from MATLAB (i.e. mex it). I want to make...
View Articleeye fixation and saccadic movement
Hi Is it possible to track eye fixation and saccadic movement using opencv ?
View ArticleCould not find OpenCV Sample - face-detection.apk! (not build opencv sample...
hi my friends,i use opencv library for android,i run other sample opencv successfully but for Sample - face-detection this have a message "Could not find OpenCV Sample - face-detection.apk! "; i seted...
View ArticleCreating a sub array of a Mat throws assertion error
Hey there, In my program, I am looping through a 2D Mat, using a rectangle with width 5 and height 1, and checking float point values in this sub array. My code goes as follow: for (int i = 0; i <...
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