[GRASS-user] i.atcorr output

[Pham Thy]

Daniel Victoria wrote:
> Hi all,
>
> This is problably a dumb question but, as someone posted the other day
> "The only stupid question is the one not asked", here goes.
>
> I'm using i.atcorr to correct landsat tm5 images and from the manual I
> saw that the output is in reflectance. But it's scaled from 0 to 255.
> The question is: The 255 value means a reflectance of 1? Or is 100 the
> reflectance of 1?
>
> Thanks
> Daniel
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I also have the same question about the scale. Why the output value from 
0-255 not 0-1? I checked my data, it is not true that value of 255 is 
reflectance of 1. Please anybody help us how to get the true reflectance 
value or how to convert?
Best
Thy