I’ve recently upgraded from OpenCV 2.4.11 to OpenCV 3.1 by following this guide. This sudo make install seems to have worked successfully and when I run pkg-config –modversion opencv, I get the appropriate version (3.1.0). But for some reason, I am now running into linker errors, and even simple p…
Tag: opencv
Raspberry PI remote debug GTK error
I’m using NetBeans IDE 8.0.2 on my Win7 machine to develop Raspberry Pi opencv C++ application. I’m building & debugging the application remotely on the Raspberry Pi from my Win7 machine. At run time the application fails with “Gtk-WARNING **: cannot open display:” error when reach…
0 NATIVE_LIBRARY_NAME cannot be resolved or is not a field with Linux + Eclipse + Java
I get an error on Core.NATIVE_LIBRARY_NAME like so: Stacktrace: I had settled the NativLibrary path at the following location. /home/…/OpenCV/opencv-2.4.5/build/lib I had followed the instruction on https://www.openshift.com/blogs/day-12-opencv-face-detection-for-java-developers but it doesn’t cre…
Basler Pylon 4 SDK and OPENCV 2.4.8, Linux simple viewer
I am developing a simple camera viewer to test Basler camera acA1300-30gc. I am working in Ubuntu 14.04 with Basler Pylon 4 and OPENCV version 2.4.8 because I am going to develop a machine vision application and I need to analyze frames on the fly. Based on OpenCV Display Image Tutorial, Sample Code in Pylon …
opencv installation ffmpeg error
I have been trying to install opencv for a long time in my fedora 20 32 bit system.I followed the instructions from http://docs.opencv.org/trunk/doc/py_tutorials/py_setup/py_setup_in_fedora/py_setup_in_fedora.html#install-opencv-python-in-fedora But after all cmake commands when I m trying to make it I am get…
cv2.hough circles error on video
When I run cv2.HoughCircles() I am getting the error My code is GNU nano 2.2.6 File: cv.py Answer you are not checking if you circles is None. If you do that, it works: Output generated: