how to create a RGB composite using multiband reader

[iferencik]

I have a custom Multiband reader which I am feeding 3 urls representing 3 images

The multiple URL's are B4, B3 and B2 bands of a sentinel 2 image

here is the info endpoint

folowing url produces a gray image

I'd like to produce something like this

Is is possible to produce a composite using the multiband reader?

the FastAPI docs of the router are here

https://titiler.undpgeohub.org/docs#/Multibands%20Cloud%20Optimized%20GeoTIFF

Thanks

[vincentsarago]

@iferencik you need to apply either rescaling or color formula. The sentinel-2 data is in uint16 so it needs to be rescaled to 0->255 in order to create a JPEG or PNG image. By default TiTiler will rescale the data using the min/max of the data type