Qt widget to display OpenCV images in an OpenGL frame
You can find the full tutorial here on Robot-Home.it website.
First part:
Usage example:
Qt widget to display OpenCV images in an OpenGL frame
License: GNU Lesser General Public License v3.0
Qt widget to display OpenCV images in an OpenGL frame
You can find the full tutorial here on Robot-Home.it website.
First part:
Usage example:
how can i Transparent background to show .png( RGBA ) images, i try to change "mBgColor" ,and use
glClearColor(0,0,0,0); , but the background turned black, still no transparent, can you help me to fix this?
thanks...
Hi
the build under Ubuntu 16.04 failed with this .pro file.
/usr/bin/ld: cqtopencvviewergl.o: undefined reference to symbol '_ZN2cv8cvtColorERKNS_11_InputArrayERKNS_12_OutputArrayEii'
//usr/lib/x86_64-linux-gnu/libopencv_imgproc.so.2.4: error adding symbols: DSO missing from command
You have to add the opencv_imgproc library.
LIBS +=
-L$$LIBS_PATH
-lopencv_imgproc
-lopencv_highgui
-lopencv_core
}
When using the widget stand-alone, if the widget window is resized by the user manually, the program crashes.
Multiple instances of startTimer(0), slows down the GUI for some reasons. If you trigger the command for 4-5 times, GUI gets really slow. Can use threads for the same operation
Hello,
I have tried your source code in my Qt 5.4.1 OpenGL ES 2.0 and I got below issues.
protected QOpenGLFunctions_2_0 - Not working (this file included but not this line gives me error)
Following function says 'was not declared in this scope'
glMatrixMode
glLoadIdentity
glOrtho
glPushMatrix
glRasterPos2i
glDrawPixels
glPopMatrix
Will guide me what should I do to resolve all these errors.
Thanks
Tushar Kachhadiya
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.