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How to recognize graphs from image

asked Sep 15 '12

Diego Stamigni gravatar image

updated Oct 5 '0

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 Dec 3 '12

updated Dec 3 '12

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 Dec 3 '12

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: Sep 15 '12

Seen: 2,409 times

Last updated: Dec 03 '12