thanks for the titorial but there is some thing weird ,you named the file " SAM_result" and the result was unclassified image (black) than you add a new file named test?it shows a good result ? so how we can fixe the unclassified problem?
It is available in the envi installation folder. You can download it from usgs, however, the spectral library format is different from the envi format, so you must convert it and the conversion seems difficult, the easiest one is just use the spectral library available in envi installation.
Hello sir,Can this be done in arcgis or qgis?if it can be done then please make a video on that,you have explained in very easy way loved it but I am not having ENVI
Do I need to convert to BOA/Reflectance after I download ASTER L1T from USGS?? I have also applied radiometric/atm correction after watching your video???
Usgs have some extensive spectral library, however the format is not easily implemented in most software, ENVI also have some spectral libs which can you use
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thanks for the titorial but there is some thing weird ,you named the file " SAM_result" and the result was unclassified image (black) than you add a new file named test?it shows a good result ? so how we can fixe the unclassified problem?
I get a black image after applying SAM. Any solution???
Hello sir, your video is very helpful, for a beginner, it was a great help. But please is the spectral library available? How can I download it?
It is available in the envi installation folder. You can download it from usgs, however, the spectral library format is different from the envi format, so you must convert it and the conversion seems difficult, the easiest one is just use the spectral library available in envi installation.
Hello sir,Can this be done in arcgis or qgis?if it can be done then please make a video on that,you have explained in very easy way loved it but I am not having ENVI
no, it can't
Do I need to convert to BOA/Reflectance after I download ASTER L1T from USGS?? I have also applied radiometric/atm correction after watching your video???
Yes, you still need to perform those atmospheric correction/boa reflectance, unless you are using L2 or L3 data, you don't have to do it.
@@GEO2004 Thank You so much. Can you please tell me how to convert it to BOA or relectance?
all right, I will make a video about it
@@GEO2004 Thank you... Just to confirm ... DO I need to convert L1T to TOA/BOA after I have done pre processing (radiometric/Atmospheric) ?
Seems you are not understand, if you do atmospheric correction, you are exactly got BOA reflectance
Where to find spectral library? I'm doing it for antimony mapping
Usgs have some extensive spectral library, however the format is not easily implemented in most software, ENVI also have some spectral libs which can you use
Sir, can I do it with landsat 8?
Now aster data don't provide swir?
How can I solve this
You can do it with landsat, however, the accuracy will be very low, if aster doesnt provide swir anymore just use old aster imagery,