Processing low quality images

Posted by Iman01 on Feb 25, 2015; 1:48pm
URL: http://imagej.273.s1.nabble.com/Processing-low-quality-images-tp5011763.html

Hello every one,

I'm trying to measure bubble diameters inside a reactor. The original images were not clear or transparent enough, so I had a friend to work on them in photoshop to get more clear bubbles inside the image. Still I cant process the image in imagej. I cant set the threshold to match the B/W bubbles inside the new picture. Here are the original and the edited images. So is there any way to improve the quality of this image to be processable?
 




Thanks for your help in advance