Rather than printing a document, filling it out by hand and then scanning to so that you are able to return it electronically, use Gimp and ImageMagick to sign documents electronically.
First, make sure to have a png image with the signature on a transparent background.
Next, open …
mkdir /tmp/tl cp timelapse*.jpg /tmp/tl/
Resize the images to a certain size. (Optional):
for i in *.JPG; do echo -e "$i...\c"; convert "$i" -resize 1920x1080 "$i"; echo done; done
Create …
I decided to try and start signing my pictures.
composite -watermark 15% -gravity southeast sign-1.png $i $i;
It needs more tweaking but that will do for now.
To convert all files in a directory:
for i in *.JPG; do echo -e "$i... \c"; composite -watermark 15% -gravity southeast sign-1 …more ...
Three ways to invert an image:
convert black-white.png -negate white-black.png convert upside-down.png -rotate 180 rightside-up.png convert upside-down.png -flip rightside-up.png
| source: | http://www.imagemagick.org/pipermail/magick-users/2003-October/011071.html |
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I already posted about image magick before but since this time I actually needed to use it, I found the "for" statement to work better than find.
$ for i in *.jpg; do echo "$i"; convert "$i" -resize 600x "$i"; done
Edited:
$ for i in *.JPG; do echo -e "$i...\c …more ...
To batch resize images using image magick:
find . -name “*.jpg” -exec convert {} -resize 800×600 {} \;
| source: | http://ubuntuchocolate.wordpress.com/2007/09/22/howto-batchmass-image-resize/ |
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