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information about LUTs and image manipulation

Posted by Bill Saidel on Jan 10, 2008; 5:48pm
URL: http://imagej.273.s1.nabble.com/information-about-LUTs-and-image-manipulation-tp3697616.html

Hi Imagers,
     In my work with brain images, I convert from a 256-gray LUT to a  
16-gray LUT. The graphic display of the new LUT works fine.

When I save the 16 gray'ed image and reopen the recently-saved 16 gray  
level image, the display uses 16 levels but the value of each pixel  
corresponds to a value in a 256 gray LUT. That is, the values of the  
pixels in the 16 level image are one of 255.

  What does it take to save the values of the pixels in the displayed  
16 gray level image as one of 16 values?

Thanks in advance for removing an iota of ignorance,

Bill Saidel
Biology
Rutgers-Camden