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How to display a 16-bit gray image [message #59822]

Sun, 20 April 2008 23:38

Magic.Zhou
Messages: 16
Registered: April 2008

Junior Member

I am doing a assignment, the image is 16-bit( 0-(2^16)-1), I use tvscl
commond to display the image, but seems not ideal, is there someone
who can give me the idea? Thank you!

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Re: How to display a 16-bit gray image [message #59968 is a reply to message #59822]

Mon, 21 April 2008 04:59

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Magic.Zhou@gmail.com writes:

> I am doing a assignment, the image is 16-bit( 0-(2^16)-1), I use tvscl
> commond to display the image, but seems not ideal, is there someone
> who can give me the idea? Thank you!

Often 16-bit images are "windowed and leveled", meaning
you allow the user to select the center (level) and
extent (window) of the data to be scaled into 256 values
for display:

http://www.dfanning.com/ip_tips/contrast.html

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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