19 lines
539 B
Bash
19 lines
539 B
Bash
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#!/bin/bash
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# This script relies on ImageMagick.
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# It is NOT compliant with ImageMagick forks like GraphicsMagick.
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RAND_ANGLE=$1
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RAND_ITALIC=$2
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INPUT=$3
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SOLUTION=$4
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convert -size 300x60 xc:none -pointsize 20 \
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\( -clone 0 -fill black \
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-stroke black -strokewidth 1 \
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-annotate "${RAND_ANGLE}x${RAND_ITALIC}+0+0" "\n $INPUT" \
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-roll +$ROLL_X+0 \
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-wave "$WAVE1_AMPLITUDE"x"$WAVE1_LENGTH" \
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-roll -$ROLL_X+0 \) \
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-flatten -crop 300x60 +repage -quality 500 -depth 11 png:"/var/tmp/captcha/${SOLUTION}_$(date "+%Y-%m-%d-%H%M%S").png"
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