Graph Creation of RGB Image?

Optical Toolbox
#1

I want to batch process a large number of S2 products. I want to open, form an RGB Image, geo-register, and write out as GEOTIFF.

I know how to do all of these steps in a graph except for the creation of the RGB image. In SNAP I can right click on an open file and do it, but I cannot find a way to do it in a graph so I can automate it.

Any tips appreciated!

Geotiff bands order
#2

Hi @Cyga74,

I don’t think there is a dedicated operator to form an RGB composition in the graph builder / batch processing although it would be very convenient for some applications (may be a good suggestion to improve SNAP in future versions). I could suggest you to:

  • include a subset (band subset) step on your methodology and select only band 2, 3 , 4. You can then export those bands as GeoTIFF and create your RGB composition automatically in another software

  • Manual creation would be the only option that I can think of to perform the step in SNAP. I’m sure you are not considering this option if you have a large dataset.

M

#3

Python is good for batch processing. Does S2 to RGB PNG using snappy solve your problem?

#4

Have you considered to move to Python and implement your processing chain via snappy module? that way could allow you to include the RGB image formation as an automatic step