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I did atmospheric correction of Landsat 5 image by Quick atmospheric correction method(QUAC), now I want to compare atmospheric corrected spectral signatures from ENVI QUAC with the input spectral signatures of a Raw image. What differences are there, and why these differences occur? enter image description here

Spectral signatures of a Raw image (Landcover features)

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Spectral signatures of an Atmospherically corrected image

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  • @Aaron sir kindly view this question now.
    – Autodidact
    Commented Dec 9, 2020 at 8:17
  • Then, ehy did you want to do atmospheric correction?
    – Mike Liu
    Commented Jan 16, 2021 at 8:09

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