Rasoul Kharazmi

4 Questions 6 Answers 0 Followers

Questions related from Rasoul Kharazmi

Normalization of values after atmospheric correction in module FLAASH ?

Hi, as we know, after performing module FLAASH for atm. correction, the values are not within the normal range and suggested to use this formula: (b1 le 0)*0+(b1 ge 10000)*1+(b1 gt 0 and b1 lt...

10 October 2017 6,371 0 View

Distance between spectral bands

Hi everybody! I'd like to calculate annual LULC change using Landsat images. as we know, TM/ETM/OLI does not have equal distance between spectral bands and the reflectance graphs should be...

04 April 2017 6,045 4 View

Image preprocessing- atmospheric correction or radiometric correction?

hi, everyone, I can't find any resource for this problem Which one takes precedence? atmospheric correction or radiometric correction

10 October 2016 7,609 5 View

Why do I get zero when calculating the NDVI for my region?

hi everyoneI calculate NDVI for my region but appeared 0 values in my result. I tested it in ARC GIS and ERAS but gave me the same result. how can i solve this problem?

01 January 2016 7,257 13 View