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Questions related from Al Bris
I would like to see the spectral reflectance's across my entire image so I can attach a color bar. Is there a way to do this in ENVI? I've only seen how to make spectral plots. Thank you!
02 June 2021 857 2 View
Hello, My SPEAR Relative Water Depth analysis results is not quite accurate. E.g. the deepest part of the water is being classifies as the most shallow. Is there a different method or process I...
26 May 2021 4,773 0 View
Hello, I would like to apply a cloud mask over my layer stack before I input my data into SPEAR water depth analysis. The SPEAR feature does not allow me to apply a spectral mask before the SPEAR...
21 May 2021 1,469 0 View
Hello, I am trying to analyze water depth using SPEAR relative water depth, and inputting ground truth measurements. However, the SPEAR results mask a large portion of my interest region because...
19 May 2021 5,898 3 View
Hello, I just created a "Quick Stats" histogram to view my Landsat 8 data after I divided each band by 10,000, and I see that the maximum reflectance values of all 7 bands are between 3-6. Do I...
03 May 2021 9,380 15 View
Hello, My Landsat 8 (Collection 2 Level 2) 7-band layer stack has a cyan tint across the entire image. Do I need to apply any kind of correction? Level 2 Landsat 8 imagery should be corrected to...
03 May 2021 1,449 2 View
I am new to ENVI and attempting to do a radiometric calibration on Sentinel 2 L1C images. The metadata in the ENVI header shows 0.000 for the gain and offset values of all of the bands. I believe...
09 April 2021 2,993 1 View
