How to show extremal region of text in opencv

Asked Jul 18 '15 at 12:29

Active Jul 20 '15 at 09:25

Viewed 586 times

I have code from here. It's reference from Neumann L., Matas J.: Real-Time Scene Text Localization and Recognition, CVPR 2012.

Result is rectan of text region, but I need the output like this for analysis.

How to show extremal regions of text in this code? I try to show image by imshow("",regions);, but it does not work.

in this code

vector< vector<Vec2i> > region_groups;
vector<Rect> groups_boxes;
    erGrouping(src, channels, regions, region_groups, groups_boxes, ERGROUPING_ORIENTATION_HORIZ);

sorry for my mistake . I'm not strong langues too!!

I would like to draw region_groups into the white picture

edited Jul 20 '15 at 09:25

asked Jul 18 '15 at 12:29

Thanakrit Nanthathong

this is result of code above http://www.mx7.com/view2/ytLAyhHiym8FCSzN and tutorial http://docs.opencv.org/3.0-beta/modules/text/doc/erfilter.html# – Thanakrit Nanthathong Jul 18 '15 at 13:06
possible duplicate of [OpenCV 3.0.0 MSER Binary Mask](http://stackoverflow.com/questions/28515084/opencv-3-0-0-mser-binary-mask) – Miki Jul 19 '15 at 23:54
Thx u @Miki it's very useful – Thanakrit Nanthathong Jul 20 '15 at 09:31

How to show extremal region of text in opencv

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