UnsatisfiedLinkError Java OpenCV 3.0.0
Dear all, I just compiled Opencv-3.0.0 from the source code on Github with the following options: I'm running on Redhat 6.6. mkdir build cd build cmake -D WITH_PTHREADS_PF=OFF -D WITH_OPENMP=ON -D...
View ArticleDFT crop the spectrum due to pad 0
In the opencv_tutorials,the example 2.8 Discrete Fourier Transform we pad the image with 0,when we finish DFT we need to throw away the newly introduced values,but i can not understand this statement...
View Articlespeed improvement cascade gpu
Hi, I just relate the improvement I got by chance, working with cascadeclassifier_gpu.cpp (v 2.4.10) I tried this file with a webcam video stream and one face picture in front of the cam. I was...
View ArticleCollection of Job Openings, Internships, Project Openings, etc... related to...
Well being by myself the last couple of months in the process of finding a new job related to software development and/or R&D activities with the use of the OpenCV library and not seeing something...
View ArticleWhat is the best Python IDE for OpenCV in Ubuntu linux? Is EMACS good?
I was using Anaconda Spyder IDE on Windows but could not use SIFT/SURF functions in present version of OpenCV 3.0.0, unless I used the previous version of OpenCV (2.4.11). Linux, I guess, would be a...
View ArticleHelp creating a DroidScript Plugin
Hi Guys, We think it would be cool to improve DroidScript with an OpenCV plugin, so that all the OpenCV goodness can be made available to 'non-expert' JavaScript coders on the Android platform. Some...
View ArticleIs there a way to lock onto an object in the webcam and track its movements?
I have created a a program where I identify whether there are any humans standing in front of the webcam. Is there a way where I can lock onto them and see if they have moved out of the frame? Please...
View Articleimage matcher tutorial
is there a working example similar to http://docs.opencv.org/doc/user_guide/ug_features2d.html
View ArticleHand detection by skin color matching
I am trying to detect a hand after face detection. I have managed to detect the face using the following code: img = cv2.imread("test.jpg",1) img_hsv = cv2.cvtColor(img,cv2.COLOR_BGR2HSV) hc1 =...
View ArticleDetect two objects in contact
Suppose two objects in motion are in contact with each other. There could be a scenario when contact breaks for a while, so I want to capture that moment. How can I achieve it??
View ArticleIs opencv 3.0 really compatible with microsoft visual studio 2015?
I have setup Opencv as described here (which needs to be updated by the way):...
View ArticleSaving an image using OpenCv & Android
Hi, using java, i have created a camera using surface view.. I am trying to save the image using open cv so that i can modify the image (crop, resize etc) but i have am having trouble converting the...
View ArticleWhat precision do you get with stereoCalibrate?
Hi Guys, I have a stereo rig that I am trying to calibrate but I am having trouble with my precision. I would therefore ask what level of precision is normal when working with stereo calibrate. I feel...
View ArticleOpenCV 3.0.0 + VS 2015 + Windows 10 Pro x64 - frame always empty
Hi all! I built OpenCV 3.0.0 for VS 2015 in Windows 10 Pro x64. Then I compiled the following code: #include "opencv2\opencv.hpp" #include int main(int argc, char** argv) { cv::VideoCapture...
View ArticleDo I follow the same installation procedures with opencv 3.0 + Visual Studio...
I already have windows 10 x64 , downloaded visual studio 2015 and opencv 3.0 and no matter trying to apply many different steps out there still when i build and debug my project always there is an...
View ArticleIdeas for separating LDA clusters to improve SVM accuracy?
I've been trying to classify some tags (each tag is a 24*24 pixel image) that I have on the backs of insects. There are 3 tag types: circle (O), rectangle (I) and Queen (Q). There's also a fourth tag...
View ArticleHow do I cast Point2f to Point2d?
I am trying to copy a vector of Point2f's into a vector of Point2d's. I am unable to directly cast the Point2f elements to Point2d, as in: for (int i = 0 ; i < (int)vector1.size() ; i++) {...
View ArticleUsing triangulatePoints() and projectPoints() with stereo cameras
Hi, I have a stereo camera setup for which I am doing relative pose estimation of one camera w.r.t the other using the essential matrix. Once I computed the pose, I want to refine it; so I was...
View ArticleHow to make a good long video (capture) with VideoWriter ?
Hello, I want to capture my software window by using OpenCV. I found the VideoWriter class and use it to make video with screenshots taken each X msec. My software use Qt so I take a QPixmap each...
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