Legacy ImageMagick Discussions Archive

Hi,
I'm working on a script for Imagemagick, in order to convert photos to comic-images. Up to now I have created the following script:

for x in *.png; do
convert -normalize -posterize 8 -despeckle -despeckle -despeckle -blur 1 -paint 2 $x $(basename $x .png)_comic.png
convert -posterize 9 -blur 18 -blur 4 -paint 3 -adaptive-sharpen 3 -edge 1 -negate -evaluate Multiply 1.5 -fx '(r+g+b)/3' +contrast -charcoal 1.1 -monochrome $x $(basename $x .png)_umriss.png
convert -transparent "#ffffff" -channel Alpha -evaluate Divide 1.5 -despeckle -paint 2 $(basename $x .png)_umriss.png $(basename $x .png)_umriss_trans.png
convert -paint 2 $(basename $x .png)_comic.png $(basename $x .png)_zusammen.png
composite $(basename $x .png)_umriss_trans.png $(basename $x .png)_zusammen.png $(basename $x .png)_final.png
rm -v *_comic.png *_umriss.png *_umriss_trans.png *_zusammen.png
done

I'm not quite satisfied with the result of this script...
Does anyone of you have suggestions to improve this script?

Best regards
Christopher

could you post a link of an input and output resulting image so others can try what you have done and see what you get and what changes can be made?

Hi,

sure. The convertet pictures you can find here:

http://www.christopherstark.de/extern/comic-effect.zip

Explanation of the script here:

// For Comic Effekt

convert -normalize -posterize 8 -despeckle -despeckle -despeckle -blur 1 -paint 2 picture.png comic.png

// Convert picture to Shapes

convert -posterize 9 -blur 18 -blur 4 -paint 3 -adaptive-sharpen 3 -edge 1 -negate -evaluate Multiply 1.5 -fx '(r+g+b)/3' +contrast -charcoal 1.1 -monochrome picture.png shapes.png

// Shapes to transparency:

convert -transparent "#ffffff" -channel Alpha -evaluate Divide 1.5 -despeckle -paint 2 shapes.png shapes_transparent.png

// compose shapes and image

composite shapes_transparent.png comic.png result.png

you might get some ideas from viewtopic.php?f=1&t=11140

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