#!/usr/bin/env bash

# straightpage.sh
# Ingests a PXM image, and outputs a PXM image (straightened) with the
# same encoding.
# $1 = infile
# #2 = outfile

infile="$1"
angle="$(pamtilt -angle=3 "$1")"
tmp1=`mktemp`
pnmrotate "$angle" "$1" > "$tmp1"

# Fill the border with white, to hide copy marks
convert "$tmp1" -gravity Center -crop 95%x95+0+0 -background white -flatten -monochrome "$2"

# Cleanup
rm $tmp1