#!/bin/bash

# This script relies on ImageMagick.
# It is NOT compliant with ImageMagick forks like GraphicsMagick.

RAND_ANGLE=$1
RAND_ITALIC=$2
INPUT=$3
SOLUTION=$4

convert -size 300x60 xc:none -pointsize 20 \
	\( -clone 0 -fill black \
	-stroke black -strokewidth 1 \
	-annotate "${RAND_ANGLE}x${RAND_ITALIC}+0+0" "\n $INPUT" \
	-roll +$ROLL_X+0 \
	-wave "$WAVE1_AMPLITUDE"x"$WAVE1_LENGTH" \
	-roll -$ROLL_X+0 \) \
	-flatten -crop 300x60 +repage -quality 500 -depth 11 png:"/var/tmp/captcha/${SOLUTION}_$(date "+%Y-%m-%d-%H%M%S").png"