Stroke Width Transform (SWT) implementation (Java, C#...)
Here is code that does what you asked for: http://libccv.org/doc/doc-swt/
Other projects that are relevant:
- https://www.google.com/search?q=text+detection+in+images
- python and c++ implementation by TiRG (screenshot sample) : http://funkybee.narod.ru/
- python and c++ implementation by TiRG (source code) : http://sourceforge.net/projects/tirg/
My friend Andrew and I implemented Stoke Width Transform (SWT) on a mobile phone during a class project at Cornell. Maybe you can get hint from the report.
The report: http://www.cs.cornell.edu/courses/cs4670/2010fa/projects/final/results/group_of_arp86_sk2357/Writeup.pdf
Our code: https://sites.google.com/site/roboticssaurav/strokewidthnokia
Updated code: https://github.com/aperrau/DetectText