OpenCV Tips
@OpenCVTip
Infrequent tips on OpenCV.
You might like
An example usage of parallel_for_() that paints an image to random colors in parallel: gist.github.com/barisdemiroz/3…
You can use parallel_for_() to easily parallelize your data processing loops.
You can initialize/seed RNGs using `state` field. e.g. theRNG().state = getTickCount();
You can use theRNG() to access default, thread local random number generator. e.g. float x = theRNG();
There is an undocumented TickMeter class to measure elapsed time.
OpenCV announces VTK-based 3D visualization module: viz demo: youtube.com/watch?v=75Ytgy… docs: docs.opencv.org/modules/viz/do…
OpenCV Development Team worked hard in scorching summer heat and has prepared the OpenCV 2.4.6 release for you! opencv.org/opencv-2-4-6-i…
Sorry, this time it is not about OpenCV, it is about my home country, Turkey. wrttn.in/129692
Microsoft released Image Watch, a free Visual Studio extension for viewing in-memory OpenCV images during debugging: opencv.org/image-debugger…
Try out the beta version of OpenCV 2.4.4. The final 2.4.4 is expected within ~2 weeks. opencv.org/opencv-2-4-4-i…
e.g. rectangle(img, rect, CV_RGB(255,0,0)); // draws a red rectangle.
As drawing function color parameters, use CV_RGB() macro for clarity instead of Scalar().
A new cv::putText to print text on image in the same way as you print "Hello world!" to std::cout.goo.gl/PeZBF
Here you can see how all the available fonts in OpenCV 2.4.3 appear: i.imgur.com/r9Jzu.png
You need to know the text size in order to position the text or create an image that's big enough to contain the text...
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