Hi Koduri,
for the project I'm working on I needed something similar.
Using the C++ API of OpenCV I found the following code to be working:
Code:
osgImg-readPixels( 0, 0, width, height, GL_BGR, GL_UNSIGNED_BYTE );
cv::Mat cvImg(osgImg-t(), osgImg-s(), CV_8UC3);
cvImg.data = (uchar*)osgImg-data();
// Flipping because of different origins
cv::flip(cvImg, cvImg, 0);
Cheers,
Dakota
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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=50895#50895
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