In processing chain, Calibration>Multilook> Train Correction, or Calibration>ML>Spk filt>TC, and saving in bigtiff geotiff for further analysis, I see that pixel values got to be between 0-0.3 while it is float 32. But excluding calibration and/or speckle filter, pixel values became nicely between zero to couple of hundreds.
Wondering why “Calibration” and or “Speckle Filter” ruin the pixel values unexpectedly?
normal? any advice?