Re: random regions of interest

Posted by Wayne Rasband on Oct 13, 2005; 2:48pm
URL: http://imagej.273.s1.nabble.com/random-regions-of-interest-tp3704680p3704682.html

> can a mask be loaded into imageJ like we do in Photoshop

In ImageJ, masks are 8-bit binary images consisting of zero and 255.
Masks are created by Edit>Selection>Create Mask and by Analyze>Analyze
Particles when "Masks" is selected from the  "Show:" drop down menu.
Masks created by these two commands use inverting lookup table so that
zero pixels are white and 255 pixels are black. Use the Edit>Paste
Control tool or the Process>Image Calculator to apply masks to images.
The Paste Controller is particularly useful since it allows you to
interactively try different operators like AND, OR, XOR and Multiply.

The Hypermedia Image processing Reference has a masking tutorial at

       http://homepages.inf.ed.ac.uk/rbf/HIPR2/mask.htm#1

-wayne