| Re: Interactive Contrast/Brightness of Images [message #27798] |
Wed, 07 November 2001 12:32 |
R.Bauer
Messages: 1424
Registered: November 1998
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Senior Member |
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David Fanning wrote:
>
> Folks,
>
> I've written a short article about how to interactively
> change the contrast and brightness of an image. These
> quantities are also called the window level and window
> width of an image, too. This kind of functionality is
> often required, for example, with 16-bit medical images.
>
> You can find the article here:
>
> http://www.dfanning.com/ip_tips/contrast.html
>
> I also wrote a program, named WindowImage, to
> demonstrate the idea. You can find the program
> here:
>
> http://www.dfanning.com/programs/windowimage.pro
>
> You will need my TVImage program as well if you
> want to run this program:
>
> http://www.dfanning.com/programs/tvimage.pro
>
> Run the program like this:
>
> IDL> WindowImage
>
> The trick in such a program is to find a neat
> algorithm for changing the contrast and brightness
> as you drag the cursor either horizontally or vertically
> on the image. I'm not totally enamored with the one
> I came up with and I suspect someone out there has
> a better one. If so, I'd like to hear about it. :-)
>
> If you haven't visited the Coyote lately, you might
> want to have a look. I've been busy the past couple
> of weeks. :-)
>
> You can find over 20 new programming tips here:
>
> http://www.dfanning.com/documents/tips.html#NewTips
>
> As always, I appreciate the feedback.
>
> Cheers,
>
> David
Dear David,
looks quite good and all for no charge :-))
Reimar
--
Reimar Bauer
Institut fuer Stratosphaerische Chemie (ICG-1)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
http://www.fz-juelich.de/icg/icg1/
============================================================ ======
a IDL library at ForschungsZentrum Juelich
http://www.fz-juelich.de/icg/icg1/idl_icglib/idl_lib_intro.h tml
http://www.fz-juelich.de/zb/text/publikation/juel3786.html
============================================================ ======
read something about linux / windows
http://www.suse.de/de/news/hotnews/MS.html
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