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I have a Garmin Nuvi GPS, which contains images, in dot SRF format. I would like to edit the images, or create new srf image files. I have tried to use GIMP to edit or export images to and from this format but I do not see support for it. Is there a package that supports editing this type of file in GIMP, or some other image editor?

Ubuntu Mate 17.10 is my OS.

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I tested with the following file:

wget http://rawsamples.ch/raws/sony/RAW_SONY_DSC-F828.SRF

Partial success on 2 fronts:

  1. Gimp: This gui application will import these files, and subsequently allow editing but will not export to the .srf format unfortunately. This is done with the assistance of ufraw:

    sudo apt-get install gimp gimp-ufraw

  2. ImageMagick: This command line application easily converts .srf files to .png for subsequent editing, but not possible to subsequently export to .srf. A simple command line will accomplish conversion:

    convert RAW_SONY_DSC-F828.SRF test.png

So: easy to read and subsequently edit but less easy to export to srf in all applications that I have tested (including Krita if you want to try something a little different)...

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  • I'll have to post my answer to this which was much more convoluted. the GPS may have srf files, but the ones i wrote using this gimp plug-in didnt work. other factors like fixed image size could also have been an issue. In any case, I ended up converting the png files (or whatever) to srf using a hex editor, to modify the headers, and footers, to make an image that my gps would accept and use.
    – j0h
    May 22, 2019 at 22:26

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