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Re: True-Color Modis Image [message #67549 is a reply to message #67475]

Fri, 31 July 2009 13:31

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> The secret to getting "bright" images, compared to what
> I was getting most of the day, appears to be knowing
> the esoteric numbers necessary to do a piecewise-scaling
> of the image into byte values, rather than doing a simple
> BYTSCL. I have an article in the works that I think will
> help people produce better results

Here is the aforementioned article:

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

There is a new Coyote program, ScaleModis, to go
along with it. I have to say, I *really* cleaned this
algorithm up from what I found on the MODIS web pages.

Yep, that's right HISTOGRAM and VALUE_LOCATE. My God,
those two programs together are amazing! Probably
another article or two just in that part of the code
itself, since I got confused by my own web pages. :-(

Anyway, you can find a superfast MODIS scaler here:

http://www.dfanning.com/programs/scalemodis.pro

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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[Message index]

		Re: True-Color Modis Image By: David Fanning on Thu, 30 July 2009 21:22
		Re: True-Color Modis Image By: jameskuyper on Thu, 30 July 2009 20:46
		Re: True-Color Modis Image By: David Fanning on Thu, 30 July 2009 15:14
		Re: True-Color Modis Image By: David Fanning on Thu, 30 July 2009 14:38
		Re: True-Color Modis Image By: David Fanning on Thu, 30 July 2009 12:12
		Re: True-Color Modis Image By: David Fanning on Fri, 31 July 2009 13:31
		Re: True-Color Modis Image By: d.poreh on Fri, 31 July 2009 01:08

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