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    • EmperoR

      Dear Guests   12/24/2016

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Why when i change scale factor of an image to 1(0-1), the output image becomes black?

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you need to explain your problem in detail, and post some picture to help us understand the exact problem ;):P

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is your data in scaled spectral reflectance? what software do you use?

My guesses would be; either 10000 is very large value to divide the bands by, or you have a scaling issue (you need to stretch the data in the resulted bands)!

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thank's my dears for your help...


my data is aster(bands 1 to 9)...i layer stacked and resampling it an performed quick atmospheric correction. you know that QUAC creates a surface reflectance image, scaled into two-byte unsigned integers using a reflectance scale factor of 10,000.

now i want to change this scale factor to 1, so that, it's spectral profile to be comparable with The spectral curves that available in spectral library which my project demands that.

i use ENVI 5.3


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