#!/bin/sh

ffmpeg -r 50 -i /mnt/usb/V/talks/JamesRandi_2007.mp4 -f image2 %04d.jpg
for image in *jpg
do
    convert $image -scale 1x1 -format "%[fx:r] * .27 + %[fx:b] * .06 + %[fx:g] * .67"  info:|bc -l >> luminance_pattern
done
nl luminance_pattern > luminance_pattern.data
rm *jpg