🚀 go-pugleaf

In article <fred.722416637@dip3> fred@dip3.ee.uct.ac.za (Fred Hoare) writes:
>I (and the other people in my lab) have a requirement to be able
>to display 16 bit greyscale images on a Sun workstation. We have
>several pieces of software that display images, but they all convert
>the images to 8 bit first. What we require is a display routine that
>would allow a person to choose what intensity range in the image was
>displayed on the screen, at any time. I presume this would be done by 
>changing the way the lookup table gets mapped to the data.

The way that I attack it is to either just truncate the lower 8 bits
or to scale the data so that the maximum value is mapped into 255 and
the minimum value is mapped into 0.  The can either be done by table
lookup or through some direct scaling.

I'm not sure what is meant by "allow a person to choose what intensity
range was displayed on the screen..."  I suppose that you could use a
sliding eight bit window that could be used as a mask to map into the
color table but without a lot of fiddling the images are going to look
awfully strange.

							spl
-- 
Steve Lamont, SciViGuy -- (619) 534-7968 -- spl@szechuan.ucsd.edu
UCSD Microscopy and Imaging Resource/UCSD Med School/La Jolla, CA 92093-0608
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