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#!/usr/bin/php -q
<?php

if(isset($argv[1]) && strlen($argv[1])) {
	$file = $argv[1];
}else{
	echo 'Please Specify a File';
	exit(1);
}

$img = imagecreatefromstring(file_get_contents($file));
list($width, $height) = getimagesize($file);

$scale = 10;

$chars = array(
	' ', '\'', '.', ':',
	'|', 'T',  'X', '0',
	'#',
);

$chars = array_reverse($chars);

$c_count = count($chars);

for($y = 0; $y <= $height - $scale - 1; $y += $scale) {
	for($x = 0; $x <= $width - ($scale / 2) - 1; $x += ($scale / 2)) {
		$rgb = imagecolorat($img, $x, $y);
		$r = (($rgb >> 16) & 0xFF);
		$g = (($rgb >> 8) & 0xFF);
		$b = ($rgb & 0xFF);
		$sat = ($r + $g + $b) / (255 * 3);
		echo $chars[ (int)( $sat * ($c_count - 1) ) ];
	}
	echo PHP_EOL;
}