Hi John,

if you subset your original image using OTB (for instance with the ExtractROI application) it will create by default an ascii file with the extension .geom. This file contains metadata info for supported sensors.

You can also create this .geom file with the original product using the ReadImageInfo application (-outkwl parameter).

It allows then to use the extract as input of the orthorectification or optical calibration application for instance.

Manuel


Le 02/06/2016 16:20, John (EBo) David a écrit :
When I use otbcli_ExtractROI to extract regions of interest of raw WorldView2 images I loose all projection information. I have been having some issues moving back and forth between GDAL and OTB, and wanted to try an all OTB implementation. Using "gdal_translate -srcwin ..." mostly works but appears to drop some definitions or does not play gracefully with expected but missing variables.

What is the common practice in OTB to extract an ROI and keep all other metadata in place?

  Thanks and best regards,

  EBo --

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