Re: [Gimp-developer] batch processing

[jcupitt gmail com]

If you're comfortable at the command-line, imagemagick is very simple
and runs everywhere:

https://imagemagick.org

With bash you can enter:

for i in *.jpg; do
    convert $i --resize x768 resized_version_$i
done

My image processing package nip2 can batch-process in a GUI way,
though it's a bizarre program.

https://github.com/libvips/nip2

1. Start nip2
2. Click "File / Open", navigate to the source directory, click on the
first image, shift-click on the last, click Open
3. This will make a group of images, probably called A1. "Click
Toolkits / Image / Transform / Resize / Size to" to resize the group
4. Select Vertical, 768, Lanczos3 in the scrap of GUI you see
5. RIght-click on the name of the resize object (probably A2) and
select "Save as"
6. In the dialog, navigate to a destination directory, enter eg.
"fred00.jpg" as the filename, and click Save
7. The set of images will be saved as fred00.jpg, fred01.jpg, fred02.jpg etc.

John


On Fri, 9 Oct 2020 at 11:26, Drake Koefoed via gimp-developer-list
<gimp-developer-list gnome org> wrote:
> I would like to batch process a directory of images to h=768 retain aspect
> ratio.
>
> I have not seen a simple way to do this.  Something like the wonderful
> batch rename in Nautilus would be great if it exists or could be written.
> drakekoefoed mailfence com
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