| Image Contrast Enhancement [message #47669] |
Sat, 25 February 2006 15:39 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
I've finally completed what I have been doing piecemeal over
the past week or so: put ALL my new image contrast improvements
into a single user interface, XSTRETCH.
http://www.dfanning.com/programs/xstretch.zip
Using the image histogram as a guide, you can now threshhold
your image values and perform a contrast stretch between those
values using linear, power-law (gamma), log, or an inverse
hyperbolic sine function as the scaling function. Moreover,
the code has been re-organized so that I can easily add additional
scaling functions as needed. This program works great with
even the worst of the images I have in my perverse collection.
Now that I have the proper tools, I'm going to work on an
application that will allow the user to interactively combine
images in a way that will produce pretty color output images.
Suggestions welcome.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
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