Detect an object in a camera image in C#

c# .net image-processing edge-detection
Jon Grant picture Jon Grant · Jul 31, 2009 · Viewed 28k times · Source

I have an image, taken from a live webcam, and I want to be able to detect a specific object in the image and extract that portion of it to do some further processing.

Specifically, the image would be of a game board, let's say for the purposes of this question that it's a Sudoku game board.

My initial approach was to look for contrasting areas and work it out from there, but I seem to end up with a lot of potential edges (many erroneous) and no real clue as to how to work out which ones are the ones I actually want!

Are there any algorithms, libraries, code samples, or even just bright ideas out there, as to how I would go about finding and extracting the relevant part of the image?

Answer

Mladen Prajdic picture Mladen Prajdic · Jul 31, 2009

use the free AForge.Net image processing library for this. there's a ton of cool stuff to play with.

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