HOWTO : 2 clicks resizing pictures with Nautilus

[freeflight]

Just a small howto to let you resize a directory full of big pictures (typically from cameras) in a few click with zenity and nautilus.

Put this script (you may also need to adapt to your needs) in your nautilus script directory ~/.gnome2/nautilus-scripts/ with the name of your choice (in this example Create_thumbs) :

#! /bin/sh

# Dialog box to choose thumb's size
SIZE=`zenity --list --title="Choose the thumbnail's size" --radiolist           --column="Check" --column="Size" "" "320x240" "" "640x480" "" "800x600" "" "1024x768"`

if [ $SIZE -eq ""]; then    
zenity --error --text="Size not defined by user.
Please choose a size to use. "
exit 1
fi


# How many files to make the progress bar
PROGRESS=0
NUMBER_OF_FILES=`find -iname "*.jpg" -maxdepth 1 | wc`
let "INCREMENT=100/$NUMBER_OF_FILES"

mkdir -p thumbnails

# Creating thumbnails. Specific work on picture should be add there as convert's option
(for i in *.jpg *.JPG; do
echo "$PROGRESS";
echo "# Resizing $i";
convert -resize $SIZE  -bordercolor black -border 10x10 -quality 50 $i thumbnails/$i
let "PROGRESS+=$INCREMENT"
done
) | zenity  --progress --title "$Creating thumbnails..." --percentage=0

1. Choose a directory and launch the script by right-clicking > scripts > Create_thumbs
2. Choose the size your wish to use :


3. See the script in action :


4. A new directory appeared :


As i said, this script should be adapt to your needs. Any improvments are welcome!

Seb

[Sniffer]

Good very good.

thks for all your work.

[ow50]

Thanks. I used to have a much simpler (and worse) script for this.

I used an entry dialog for size input:

SIZE=`zenity --entry --title "Create thumbnails" --text "Biggest thumbnail dimension (pixels)"`

Suggestions:
- Add more image filetypes or just try to resize all files. As far as I know, convert doesn't crash trying to resize non-image files, they will just be skipped.
- Close the progress window on completion with "--auto-close"

[risager]

This is great. For you script-writing people I have a suggestion for something I needed a few times. I often want to email a picture to someone, but want to rescale it first. This script is most helpful in doing so. But it would be even more cool (IMO) to have, in addition, a script that does exactly what this script does, except that it should attach the files to an email instead of writing it to a new folder. Does anyone know how to do that?

[23meg]

this script could be combined with the email script found on this page to do what you want. there are other useful scripts on this page as well.

[Sniffer]

Problem: When enter one of my directory's with jpeg files, i press the create thumbs script, i choose the size but then....

The progress bar appears as full with the last jpeg bellow, i press ok, i enter the thumbs folder automatic generated....BUT NO Jpeg files inside!!!!! Odd

[freeflight]

Originally Posted by Sniffer Problem: When enter one of my directory's with jpeg files, i press the create thumbs script, i choose the size but then.... The progress bar appears as full with the last jpeg bellow, i press ok, i enter the thumbs folder automatic generated....BUT NO Jpeg files inside!!!!! Odd

Well, that's right. As it, the script only work with *.jpg and *.JPG. If your files are named *.jpeg, it wont work, sorry.

I'll modify the script and follow above advises to improve it...

[infinito]

I've made some little changes on original script, just to avoid some bash scripting errors. Here's the code:

#! /bin/sh

# Dialog box to choose thumb's size
SIZE=`zenity --list --title="Choose the thumbnail's size" --radiolist --column="Check" --column="Size" "" "320x240" "" "640x480" "" "800x600" "" "1024x768"`

if [ "${SIZE}" == "" ]; then    
zenity --error --text="Size not defined by user.
Please choose a size to use. "
exit 1
fi

# How many files to make the progress bar
PROGRESS=0
NUMBER_OF_FILES=`find -iname "*.jpg" -maxdepth 1 | wc -l`
let "INCREMENT=100/$NUMBER_OF_FILES"

mkdir -p thumbnails

# Creating thumbnails. Specific work on picture should be add there as convert's option
(for i in *.jpg *.JPG; do
echo "$PROGRESS";
echo "# Resizing $i";
convert -resize "${SIZE}"  -bordercolor black -border 10x10 -quality 50 "${i}" thumbnails/"${i}"
let "PROGRESS+=$INCREMENT"
done
) | zenity  --progress --title "$Creating thumbnails..." --percentage=0

Thanks for the script and idea!!

[GeirG]

freeflight: Nice script, thanks for shareing.

Infinito: Nice details, although it seems you missed a " after thumbnails/"${i} , and the entire last line.

Regards,

[Sniffer]

Originally Posted by freeflight Well, that's right. As it, the script only work with *.jpg and *.JPG. If your files are named *.jpeg, it wont work, sorry. I'll modify the script and follow above advises to improve it...

Nope, as you can see on the screenshot 1 my files are named as jpg or JPG, a launch the script, choose the size, press ok, the progress bar automatic go to the end...i press ok and nothing inside thumbnail folder!!!!!!!!!

Just see the screenshots.