Allows me to add subtitles to a sequence of images.

subtitler.sh

#!/bin/bash

input=$1
output=$2

declare -A st1=([text]="C IS THE FRUIT OF COMPUTING" [start]=80 [end]=123 )
declare -A st2=([text]="YOU CAN MAKE GAMES" [start]=124 [end]=161 )
declare -A st3=([text]="DATABASES, COMPILERS" [start]=162 [end]=210 )
declare -A st4=([text]="ENGINES, DRIVERS" [start]=211 [end]=247 )
declare -A st5=([text]="THERE'S, UM" [start]=248 [end]=265 )
declare -A st6=([text]="C EMBEDDED SYSTEMS" [start]=266 [end]=289 )
declare -A st7=([text]="C DNSS, C APPS" [start]=290 [end]=328 )
declare -A st8=([text]="IN CELLPHONES, IN TVS" [start]=329 [end]=402 )
declare -A st9=([text]="THERE'S BYTECODE C AND MICROPROCESSOR C" [start]=403 [end]=474 )
declare -A st10=([text]="INTERPRETED C" [start]=475 [end]=545 )
declare -A st11=([text]="OBJECTIVE-C" [start]=546 [end]=599 )
declare -A st12=([text]="ANSI C" [start]=600 [end]=627 )
declare -A st13=([text]="C PLUS PLUS" [start]=628 [end]=660 )
declare -A st14=([text]="C SHARP" [start]=661 [end]=702 )
declare -A st15=([text]="C AND BASH" [start]=703 [end]=741 )
declare -A st16=([text]="C ON ROUTERS" [start]=742 [end]=783 )
declare -A st17=([text]="C COMMAND LINES" [start]=784 [end]=827 )
declare -A st18=([text]="THAT'S..." [start]=828 [end]=870 )
declare -A st19=([text]="THAT'S ABOUT IT" [start]=871 [end]=915 )

#.1,.3:.3,.6:.6,.9:.9,1
progression_back=( .1 .3 .6 .9 )
progression_front=( .3 .6 .9 1 )
mkdir $output/
rm -rf $output/*.png
cp $input/*.png $output/

for i in {1..19}; do
	ref=st$i[text]; text=${!ref}
	ref=st$i[start]; start=${!ref}
	ref=st$i[end]; end=${!ref}
	echo "$text s$start e$end"
	for j in $(seq $start $end); do
		padded=`printf %04d $j`
		echo -n "$padded "
		convert "$output/$padded.png" -pointsize 32  -font "exo-extra-bold.ttf" -gravity south  \
			-stroke "rgba(0,0,0,.9)" -fill "rgba(0,0,0,.9)" -strokewidth 4 -annotate +0+20 "$text" \
			-stroke none -fill "rgba(255,255,255,1)" -annotate +0+20 "$text" \
			"$output/${padded}-subtitled.png"
		mv "$output/${padded}-subtitled.png" "$output/$padded.png"
	done	
done
#animate -d 4 $output/*.png
beep

Used to make this -> http://imgur.com/gallery/MHRp6rK