Infrequent tips on OpenCV.
Joined April 2012
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3 Photos and videos
7 Apr 2016
An example usage of parallel_for_() that paints an image to random colors in parallel:
gist.github.com/barisdemiroz…
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7 Apr 2016
You can use parallel_for_() to easily parallelize your data processing loops.
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4 Apr 2016
You can initialize/seed RNGs using `state` field.
e.g. theRNG().state = getTickCount();
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4 Apr 2016
You can use theRNG() to access default, thread local random number generator.
e.g. float x = theRNG();
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29 Feb 2016
There is an undocumented TickMeter class to measure elapsed time.
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25 Apr 2014
OpenCV announces VTK-based 3D visualization module: viz
demo: youtube.com/watch?v=75Ytgy3Q…
docs: docs.opencv.org/modules/viz/…
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OpenCV Tips retweeted
3 Jul 2013
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-is-o…
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15 Jun 2013
Sorry, this time it is not about OpenCV, it is about my home country, Turkey. wrttn.in/129692
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OpenCV Tips retweeted
27 Mar 2013
Microsoft released Image Watch, a free Visual Studio extension for viewing in-memory OpenCV images during debugging: opencv.org/image-debugger-pl…
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15 Feb 2013
[tutorial] How to build OpenCV library and debug it in VS2010?
anlak.com/build-debug-opencv…
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OpenCV Tips retweeted
12 Feb 2013
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-is-u…
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11 Feb 2013
e.g. rectangle(img, rect, CV_RGB(255,0,0)); // draws a red rectangle.
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11 Feb 2013
As drawing function color parameters, use CV_RGB() macro for clarity instead of Scalar().
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OpenCV Tips retweeted
21 Jan 2013
A new cv::putText to print text on image in the same way as you print "Hello world!" to std::cout.goo.gl/PeZBF
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11 Jan 2013
You can find the code to produce the image in previous tweet here: pastebin.com/xTw3rSmT
11 Jan 2013
Here you can see how all the available fonts in OpenCV 2.4.3 appear: i.imgur.com/r9Jzu.png
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11 Jan 2013
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...