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How to recognize graphs from image

asked 2012-09-15 11:11:32 -0500

Diego Stamigni gravatar image

updated 2012-09-21 10:08:49 -0500

Kirill Kornyakov gravatar image

I would like some advice about the recognition of graphs (not too complexes) in images. Do you have some idea of how can I do ?

Note: I mean (+x, +y) graphs (cartesian coordinate system).

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answered 2012-12-03 15:06:04 -0500

updated 2012-12-03 15:09:50 -0500

In the first use the projection for recognize of table(chart) in the vertical & horizontal direction. In the next step you have to use morph open for recognize spots(remove green lines & remain green spots).

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answered 2012-12-03 06:50:27 -0500

Adi gravatar image

I did this a while back. There is no fool-proof solution, but some things can be done quite easily.
Open the image to get rid of the grid, threshold the color channels to get the line and/or use morphology to leave only detect the dots.
Once you have the dots you're mostly done.

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Asked: 2012-09-15 11:11:32 -0500

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Last updated: Dec 03 '12