Getting blobs from similar colored contours in grayscale image

asked 2015-06-03 23:38:36 -0500

John K. gravatar image

updated 2015-06-04 00:43:57 -0500

I want to select the staff lines as individual blobs in either of these images:

The staff lines have similar darker gray color than the rest of the image.

Is this possible?

Edit: The regions that I want to select are shown in this image (roughly, I selected them manually): It's ok if other blobs are getting selected too (I can filter them by their area afterwards).

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Here my results with adapative threshold and connectComponents. Surface is about 12000 pixels ( Contour your shape). You can extract this contour and can fill after I must say that's not a logical answer. Your image are not in visible light?

LBerger gravatar imageLBerger ( 2015-06-04 03:04:14 -0500 )edit