Paul Surgeon a écrit :
On Monday 07 May 2007 11:37, Guillaume Bonillo wrote:
Hi,
I am new to scheme scripting.
What i want to do is open pictures from a directory and apply a very
simple macro.
I can do it manually with the following steps :
- open image "the_image.jpg".
- save as .... the_image_with_thumbnail.jpg
- choose options : q = 0.85 , progressive, and default other options.
- check the option : save thumbnail.
- Click OK.
- close image.
Using a bash script or DOS batch file with imagemagick is a better and easier
solution.
Below is a bash script that I use to create thumbnails of photos from my
digital camera.
You can pass the jpg quality parameter to convert - I used the default which
is 75% I think. The options are in the docs.
-----------------------------
#!/bin/bash
echo "Converting ..."
if [ ! -d "resized-1024x768" ]
then
mkdir resized-1024x768
fi
if [ ! -d "resized-256x192" ]
then
mkdir resized-256x192
fi
# Loop through all jpg files in current folder
# ============================================
for i in *.jpg
do
FileName_Stripped=`echo $i | cut -d. -f1`
if [ ! -e "resized-1024x768/$FileName_Stripped-1024x768.jpg" ]
then
echo "Converting $i to $FileName_Stripped-1024x768.jpg"
convert -resize 1024x768
$i "resized-1024x768/$FileName_Stripped-1024x768.jpg"
fi
if [ ! -e "resized-256x192/$FileName_Stripped-256x192.jpg" ]
then
echo "Converting $i to $FileName_Stripped-256x192.jpg"
convert -resize 256x192
$i "resized-256x192/$FileName_Stripped-256x192.jpg"
fi
done
echo "Done"
-----------------------------
Thank you very much for pointing this tool to me.
However ...
I can't find in imagemagick the ability to save thumbnail as EXIF data
in the jpeg, and not in a different picture.
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