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| Hi all,
Could anyone in the forum please tell me how to exclude the background cell (value R:0, G:0, B:0) in unmxing the spectral input images? I used the linear spectral unmixing tool in ENVI 4.2.; I then displayed the fractional images, using the cursor location/value and found that the background cell has value. They are also included in statistics calculation. I want to exclude them. How should I do it?
Thank you very much.
Kind regards,
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| You should create a mask of the background values (under Basic Tools ->Masking->Build Mask), and then when selecting your file for input to the LSU, also select this mask band. |
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