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Re: Stretching MODIS data [message #79216 is a reply to message #79175]

Mon, 13 February 2012 02:34

titan
Messages: 59
Registered: March 2006

Member

On 7 Feb, 07:34, David Fanning <n...@idlcoyote.com> wrote:
> titan writes:
>> Since I would like to have a standard reference color is there a way
>> to define an histogram of reference to which all the images can be
>> referred??
>
> I don't know what this means. You could certainly
> take a histogram of a "standard image" and use
> that for the histogram matching. Is that what you
> mean?
>
> Cheers,
>
> David
>
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.idlcoyote.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

Yes you are right. I was thinking that the difficulty is in
determining a "standard image" containing all the value you can find
in a meteo image (clouds, snow, land, sea ....) because, in my
opinion,it could be feasible to compare the histogram of images
belonging to the same area in the same period (or season) but not if
they belong to different period of the year.
Am I correct??

Anyway if I apply the scalemodis code the result I obtain is
characterized by yellow cloud and not white like the one you obtain
in your example..
do you have any idea why I obtain this result?

thanks a lot

cheers,

titan

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[Message index]

		Stretching MODIS data By: titan on Tue, 31 January 2012 03:36
		Re: Stretching MODIS data By: David Fanning on Mon, 06 February 2012 22:34
		Re: Stretching MODIS data By: titan on Mon, 13 February 2012 02:34
		Re: Stretching MODIS data By: titan on Tue, 07 February 2012 07:58
		Re: Stretching MODIS data By: David Fanning on Mon, 13 February 2012 05:45

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