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Converts red-cyan 3D anaglyphs to side-by-side format viewable by crossing your eyes. Useful for people who don't have 3D glasses or prefer not to use one.
Creates a PDF from multiple images. One page per image.
If you want a specific arbitrary order you can use {1,3,5,10,12}
* you may use jpg, tif etc
** if you do use jpg images you might want to add "-compress Zip" as suggested below to prevent from having the images from being re-compressed.
To ignore aspect ratio, run:
for file in *; do convert $file -resize 800x600! resized-$file; done
and all images will be exactly 800x600.
Use your shell of choice.. This was done in BASH.
mogrify can be used like convert. The difference is that mogrify overwrites files:
http://www.imagemagick.org/www/mogrify.html
Of course, other source colors can be used as well.
In this example, the docx gets converted to Open Document .odt format.
For other formats, you'll need to specify the correct filter (Hint: see "Comments" link below for a nice list).
Quickly create a new image with a certain size and background color.
Outputs the number of different pixels.
2 params to increase tolerance:
* thumbnails size
* fuzz, the color distance tolerance
See http://en.positon.org/post/Compare-/-diff-between-two-images for more details.
http://manpages.ubuntu.com/manpages/hardy/man1/icotool.1.html
There is also wrestool command.
A simple command to extract audio from flv/mp4 video file.
Just change extentions...
full command:
for fn in xkcd*.png xkcd*.jpg; do; echo $fn; read xw xh <<<$(identify -format '%w %h' $fn); nn="$(echo $fn | sed 's/xkcd-\([0-9]\+\)-.*/\1/')"; wget -q -O xkcd-${nn}.json http://xkcd.com/$nn/info.0.json; tt="$(sed 's/.*"title": "\([^"]*\)", .*/\1/' xkcd-${nn}.json)"; at="$(sed 's/.*alt": "\(.*\)", .*/\1/' xkcd-${nn}.json)"; convert -background white -fill black -font /usr/share/fonts/truetype/freefont/FreeSansBold.ttf -pointsize 26 -size ${xw}x -gravity Center caption:"$tt" tt.png; convert -background '#FFF9BD' -border 1x1 -bordercolor black -fill black -font /usr/share/fonts/truetype/freefont/FreeSans.ttf -pointsize 16 -size $(($xw - 2))x -gravity Center caption:"$at" at.png; th=$(identify -format '%h' tt.png); ah=$(identify -format '%h' at.png); convert -size ${xw}x$(($xh+$th+$ah+5)) "xc:white" tt.png -geometry +0+0 -composite $fn -geometry +0+$th -composite at.png -geometry +0+$(($th+$xh+5)) -composite ${fn%\.*}_cmp.png; echo -e "$fn $nn $xw $xh $th $ah \n$tt \n$at\n"; done
this assumes that all comics are saved as xkcd-[number]-[title].{png|jpg}.
it will then download the title and alt-text, create pictures from them, and put everything together in a new png-file.
it's not perfect, but it worked for nearly all my comics.
it uses the xkcd-json-interface.
though it's poorly written, it doesn't completely break on http://xkcd.com/859/
Creates a better looking gif than the original post via imagemagick processing high quality jpgs, rather than converting directly to gif from the video itself.
You can use "decode()" in a similar manner:
python -c 'print "68656c6c6f".decode("hex")'
Create transparent image to use as icon, watermark for other images, etc.