remove many small black spots

Posted by Merlin Verdecia on
URL: http://imagej.273.s1.nabble.com/remove-many-small-black-spots-tp3683971.html



I would be very grateful if someone could explain to me how to extract the blood vessels from the image of the attachment number 1 because I have tried and I get the image of the attachment number 2 which has many small black
 spots.How I can remove these black spots?
thank you very much