I have to calculate the average multi-spectral image (6 bands)
over a set of ~100 images (6x1024x1280). That is, having 3 multiespectal
images A,B and C, I need M in which band1 is the average band1 of A, B and C
and so on. Also, I first subtract the mean for each band.

I currently do this in R, but takes a very long time. I essentially
make an stack (which is like a vrt file) with all bands and then
calculate the average of bands 1,7,13...
2,8, 14... etc
Is there a way of making this
calculation using either otb_cli or python-otb ?

Thanks

Agus

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