Hi all,

As you know atmospheric effect causes real Dn values to be reduced.

So if we apply an atmospheric correction method like quick correction or log residual (using envi software).

Resulted dn values should be in original range.

But what is the problem?

For example after applying quac method,dn values range grow to 10 or 20 time greater than original value.

What is the problem? Do you know?

Thank you.

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