Extracting lines from an image to feed to OCR - Tesseract

Question

I was watching this talk from pycon http://youtu.be/B1d9dpqBDVA?t=15m34s around the 15:33 mark the speaker talks about extracting lines from an image (receipt) and then feeding

Answer 1

Take a look at the technique used to detect the skew angle of a text.

Groups are lines are used to isolate text on an image (this is the interesting part).

From this result you can easily detect the upper/lower limits of each line of text. The text itself will be located inside them. I've faced a similar problem before, the code might be useful to you:

All you need to do from here is crop each pair of lines and feed that as an image to Tesseract.