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Merge pull request #3158 from arielelkin:master

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This commit is contained in:
Vadim Pisarevsky 2014-08-26 16:07:10 +00:00
commit 2811d40840
1 changed files with 7 additions and 2 deletions
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doc/tutorials/ios/video_processing/video_processing.rst
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@ -199,11 +199,16 @@ From here you can start processing video frames. For example the following snipp
{ {
// Do some OpenCV stuff with the image // Do some OpenCV stuff with the image
Mat image_copy; Mat image_copy;
cvtColor(image, image_copy, CV_BGRA2BGR); cvtColor(image, image_copy, COLOR_BGR2GRAY);
// invert image // invert image
bitwise_not(image_copy, image_copy); bitwise_not(image_copy, image_copy);
cvtColor(image_copy, image, CV_BGR2BGRA);
//Convert BGR to BGRA (three channel to four channel)
Mat bgr;
cvtColor(image_copy, bgr, COLOR_GRAY2BGR);
cvtColor(bgr, image, COLOR_BGR2BGRA);
} }