Re: batch process jpegs

[mick crane <mick.crane@gmail.com>]

On 2019-05-02 06:21, mick crane wrote:
> On 2019-05-01 19:15, Jonas Smedegaard wrote:
> > Quoting mick crane (2019-05-01 19:59:06)
> > > I've got a bunch of jpgs from the camera where the bits I want are a 
> > > bit
> > > underexposed. What I'd like is a GUI that will batch process them.
> > > It's been a few years since I processed any camera images and I seem 
> > > to
> > > have forgotten what my workflow was.
> > > I think I might be able to do it with Graphic::Magick if I could give 
> > > it
> > > some sensible numbers and nip2 looks like it can do it so I'm reading
> > > the docs for that.
> > > I can't quite see how to use Gimp script-fu thing.
> > > Any suggestions for available GUI that will batch process jpgs ?
> >
> > The king of photo editing nowadays is darktable - can be confusing to
> > navigate at first, but is quite powerful - also does batch processing.
> >
> > But if you mean shell scripting then you want something else - and for
> > each of perl, python, ruby, haskell, java, etc. there is no doubt
> > several capable photo processing libraries if you want even more
> > "scripting" than shell.  :-)
> >
> >
> >  - Jonas
>
> Thanks, Darktable looks awesome and friendly interface. Now I just
> need to find the "apply to all" menu item.
>
> mick

well that seems to work.
change one of the photos in darktable and it saves the .xmp file
close darktable.

#!/bin/bash
let n=1000
for i in *.JPG
do
darktable-cli $i IMG_7169.JPG.xmp $n.jpg
let n=n+1
done

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