
Courtesy of some very helpful
ImageMagick hints by
Anthony Thyssen, a
bit of magic to create a “stack of polaroids” effect. Here it is
applied to one of my all-time
favourite photos.
convert -size 400x180 hatching.jpg -thumbnail '200x90>' \
-bordercolor white -border 6 \
-bordercolor grey60 -border 1 \
-bordercolor none -background none \
\( -clone 0 -rotate `perl -e 'print rand() * 30 - 15'` \) \
\( -clone 0 -rotate `perl -e 'print rand() * 30 - 15'` \) \
\( -clone 0 -rotate `perl -e 'print rand() * 30 - 15'` \) \
\( -clone 0 -rotate `perl -e 'print rand() * 30 - 15'` \) \
-delete 0 -border 100x80 -gravity center \
-crop 200x160+0+0 +repage -flatten -trim +repage \
-background black \( +clone -shadow 60x4+4+4 \) +swap \
-background none -flatten \
-depth 8 -colors 256 -quality 95 polaroid_stack.png