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Re: How to dispaly one image with different color tables? [message #44165 is a reply to message #44162] Tue, 24 May 2005 04:41 Go to previous message
Benjamin Hornberger is currently offline  Benjamin Hornberger
Messages: 258
Registered: March 2004
Senior Member
envi35@yahoo.ca wrote:
> Hello,Could you give me some help on the following problem --
> I want to use different color tables to display different parts of an
> image.

http://www.dfanning.com/color_tips/twocolortables.html

> My image (intarr(700*700) includes 3 parts: ocean (=999),
> land(=900), several ROIs on land (=0~100). I'd like my ocean to be
> white, land to be yellow, and ROIs to be displayed using the Blue-red
> color table.

Note that you will have to byte-scale the image before display, so your
image values will change.

If you want to build your own color table:

http://www.dfanning.com/color_tips/create_colortable.html

Also skim through

http://www.dfanning.com/documents/tips.html

and you'll find many other useful stuff.

Good luck,
Benjamin
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