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morf.sh
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morf.sh
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#!/bin/bash
IN=in.png
OUT=out.png
# Dimensions
WIDTH=$(identify -ping -format '%W' "$IN" )
HEIGHT=$(identify -ping -format '%H' "$IN" )
# morf movements by raster size (larger the number, the more chance of movement, but movements can be small)
A=8
B=8
C=8
ASTART="$(((WIDTH/A) * $(( ( RANDOM % A ) + 1 )) ))"",""$(((HEIGHT/A) * $(( ( RANDOM % A ) + 1 )) ))"
ASTOP="$(((WIDTH/A) * $(( ( RANDOM % A ) + 1 )) ))"",""$(((HEIGHT/A) * $(( ( RANDOM % A ) + 1 )) ))"
BSTART="$(((WIDTH/B) * $(( ( RANDOM % B ) + 1 )) ))"",""$(((HEIGHT/B) * $(( ( RANDOM % B ) + 1 )) ))"
BSTOP="$(((WIDTH/B) * $(( ( RANDOM % B ) + 1 )) ))"",""$(((HEIGHT/B) * $(( ( RANDOM % B ) + 1 )) ))"
CSTART="$(((WIDTH/C) * $(( ( RANDOM % C ) + 1 )) ))"",""$(((HEIGHT/C) * $(( ( RANDOM % C ) + 1 )) ))"
CSTOP="$(((WIDTH/C) * $(( ( RANDOM % C ) + 1 )) ))"",""$(((HEIGHT/C) * $(( ( RANDOM % C ) + 1 )) ))"
MORFCOMMAND=$(echo convert "$IN" -distort Shepards \" "$ASTART" "$ASTOP" " " \
"$BSTART" "$BSTOP" " " \
"$CSTART" "$CSTOP" \
\" "$OUT")
echo "$MORFCOMMAND"
eval "$MORFCOMMAND"