Re: [Sheflug] Batch Process Images - Debian

[(Ted Harding) <ted.harding@xxxxxxxxxxxxxxxx>]

On 11-Oct-07 10:44:37, Richard Ibbotson wrote:
> Hello there
> 
> Was wondering if anyone out there might know how to do this.  Had a 
> look round with Google but I can't find exactly what I want.
> 
> I want to batch process about 100 photographs.  I think I can do that 
> with Gimp but command line might also work ?  I want to reduce 
> pictures that are 3Mb in size down to about 300k or thereabouts so 
> that I can upload them to the internet for a slide show. My 
> workstation is Debian Etch stable.
> 
> Anyone any ideas ?
> -- 
> Richard

JPEG images at 1024x768 tend to range from 200-300KB, so I'd suggest
you perhaps try ImageMagick's 'convert' program, say, on the
lines of

for i in *.jpg ; do
 j=`basename $i jpg`
 convert -geometry 1024x768 $i newpics/$j.1024x768.jpg
done

where you run the script in the directory where the original
photos are (assuming that these are jpg's too), which has a
subdirectory newpics.

This should work OK, since digital camera photos generally
have a 4:3 aspect ratio.

Hoping that helps!
Ted.

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E-Mail: (Ted Harding) <Ted.Harding@xxxxxxxxxxxxxxxx>
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Date: 11-Oct-07                                       Time: 12:20:08
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