Convert Jpeg to ASCII with PHP
May 12th, 2010 by
admin | 
<html>
<head>
<title>Ascii</title>
<style>
body{
line-height:1px;
font-size:1px;
}
</style>
</head>
<body>
<?php
function getext($filename) {
$pos = strrpos($filename,'.');
$str = substr($filename, $pos);
return $str;
}
if(!isset($_POST['submit'])){
?>
<form action="<?echo $_SERVER['PHP_SELF'];?>" method="post">
JPG img URL: <input type="text" name="image"><br>
<input type="submit" name="submit" value="Create">
</form>
<?
}else{
$image = $_POST['image'];
$ext = getext($image);
if($ext == ".jpg"){
$img = ImageCreateFromJpeg($image);
}
else{
echo'Wrong File Type';
}
$width = imagesx($img);
$height = imagesy($img);
for($h=0;$h<$height;$h++){
for($w=0;$w<=$width;$w++){
$rgb = ImageColorAt($img, $w, $h);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
if($w == $width){
echo '<br>';
}else{
echo '<span style="color:rgb('.$r.','.$g.','.$b.');">#</span>';
}
}
}
}
?>
</body>
</html>
I can’t take any credit for this…. I saw it over at PHPSnips and thought it was cool
Please Note:
This can and will absolutely hammer server resources. It should only be used to generate one offs. I definately would not leave it open for the end user to generate ascii art.