[gdal-dev] Layerstack multiple images, of different extents and variable number of bands

[Michael Sumner]

I would start with

gdalwarp <all your sources/files> out.tif

set -ts to something small at first to get a visual like -ts 1024 0   (the
y zero means the aspect ratio is figured out sanely from the x size  - with
no arguments you get best-preserving grid from all resolved inputs - set
some or 3 of -t_srs -tr -te -ts for a specific grid spec).

Just make sure the file with the largest number of bands is first in the
input list (separated by spaces), if actual data overlaps in matching
sequential bands last-in wins (IIUC).

Cheers, Mike









On Wed, Jan 24, 2024 at 4:02 AM lefsky--- via gdal-dev <
gdal-dev at lists.osgeo.org> wrote:

> I've been incorporating gdal into my processing pipelines and have a
> question about a feature.
>
> I need to be able to layer stack multiple images with different extents
> and varying numbers of bands, usually exceeding 1. I haven't been able to
> find a single command to do this in gdal. Am I missing something? If there
> is no such feature, has anyone developed a script out there that can
> robustly do all of those things (i.e. with checking for violation of
> assumptions about files and error handling)?
>
> Michael
>
> --
> Michael Lefsky (He/His)
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-- 
Michael Sumner
Software and Database Engineer
Australian Antarctic Division
Hobart, Australia
e-mail: mdsumner at gmail.com
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