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From: Avengeline on 10 Mar 2010 23:27
After using sobel edge detection on an image..

I plotted a graph of pixel values vs pixel position (for one row of the image)..

The link of the graph is attached here: http://farm5.static.flickr.com/4010/4423446095_1f8d52cc4a_b.jpg

I located all the edge positions and plotted them on the same graph using marker 'o'

I am confused on one thing.. probably I do not have a deeper understanding on edge detection...

Is it only 1 edge lies between a local maxima and minima?

In my graph, 2 edges (E1 & E2) lie in between the same local maxima and minima.. is it possible?


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