About RGB image edge detection

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Priyanka
Priyanka le 30 Jan 2012
Commenté : Image Analyst le 12 Nov 2015
How to find edge detection of RGB image using component gradient operator like sobel gradient and laplace gradient operator?

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Image Analyst
Image Analyst le 30 Jan 2012
For starters you could use rgb2hsv and then run an edge detector on the V channel. This would detect edges in the luminance channel only. A better method might be to calculate "delta E" (the CIELAB color difference metric) between the center pixel and it's neighbors in a sliding window. You could use nlfilter() for that.
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Image Analyst
Image Analyst le 12 Nov 2015
I'm attaching my local Delta E color edge detector in case anyone wants it.

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