Blank screen result after supervised classification

[saqib73]

I download a image of sentinel2B make a subset of image resampling the sub set give training sites on vector data and use maximum likelihood classifier
after processing it show me blank s

creen

[ABraun]

Classification only works with reprojected data

Rndom forest classification steps

I reproject the data into Geographic Lat/Lon. After that, the values do not change. I try some times with some different data and I find out that in the classification step, it works with the Lat/Lon project.

Sentinel-2 Classification Problem

Dear Braun When I changed sentinel-2 coordinate system to wgs84, classification problem has solved completely. Thanks for your excellent support. Sincerely,

[saqib73]

i followed this procedure
1st make a subset of image
2nd reprojected the image
3rd resampling the image
and the start supervised classification
plz guide me the peper procedure
and also some procedures about reproduction

[saqib73]

plz someone guide me

[ABraun]

I think it is best to start with the S2 resampling operator to bring all bands to the same resolution, then make a subset, then reproject to WGS84, then import the training data

[saqib73]

how to reproject the image

[ABraun]

Raster > Geometric > Reprojection

[saqib73]

showing this menu what do next ??

[ABraun]

remove the checkbox “reproject tie point grids” and start with Run

[saqib73]

not working again showing me blank screen

[ABraun]

this is hard to reproduce without more information.

Maybe you can follow along this tutorial: https://www.youtube.com/watch?v=cUbSYSHexDw