Counting color pixels

Posted by Smileyy1585 on Sep 12, 2009; 9:01pm
URL: http://imagej.273.s1.nabble.com/Counting-color-pixels-tp3691188.html

Hi,


I am new to this forum but I'm having some difficulty with the ImageJ program. My goal is to take color doppler images and to count the colored pixels within a certain area. The main colors I am looking for are red and blue, but the color ranges from light to dark red and blue. What makes things difficult is that the background is black, light and dark grey. Basically I want to count the colored pixels and divide it by the total number of pixels of a chosen area.

I keep seeing that this is possible with Image J, but I have not been able to make this work. Any help would be appreciated. Thank you!