How to Recode Pseudo Color Images?

Posted by D Kelly O'Day on Mar 09, 2010; 4:52am
URL: http://imagej.273.s1.nabble.com/How-to-Recode-Pseudo-Color-Images-tp3689048.html

Hello

I am trying to figure out how to convert various climate data images to a usable format for analysis in ImageJ.

As an example, I'd like to analyze this NOAA image of mean sea level changes.

 link  

I believe it is a pseudo color image.

I have created a color index to mm/yr rise from the color scale bar. Here are a few lines of my table:

Index  Temp
1           -9
102        -8
101        -7

....

7           30
8           27
9            9

I enter this table into the Analyze > Calibrate table and try various functions, but with no success.

Is there a way for ImageJ to convert a color index to an equivalent mm/yr value. I have been able to calibrate 8-bit images. It's the pseudo color images that are confusing me.

I'd appreciate any help you can  give me.

Kelly O'Day