I am trying to isolate each of the blue painted fingernails in the image. However, I am not sure what approach should be considered due to the white design on each nail interrupting the otherwise uniform nail color. This of course, makes
EdgeDetect a lot harder to apply. Any suggestion would be appreciated.
i = Import["http://i.stack.imgur.com/46JAy.jpg"]
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Thanks to both Belisarius and Vitaliy Kaurov for your in depth responses. I am trying to consider a more general case such as the following image. I would like to use an edge detection approach to find the area of the nails. using a
MedianFilter does help a lot and isolates the nail areas. However, what would be the next step in using the result to detect the nail areas? I am guessing that I would need to 'complete' the circles of these lines first. Is there a better approach? Perhaps measuring the density of the lines would be the best...
i = Import["http://i.stack.imgur.com/6khSE.png"]