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2008/09/23 ASCII Artwork Generator from image file

2008/09/23 07:55

ASCII Artwork Generator from image file

2008/09/23 07:55 in PHP

Now a days, we don't useASCII Artwork usually for internet communication, because technology is changing rapidly.

Following snipet is the really great source can generage ASCII Artwork from image file such as jpeg or gif.

<?php
 $filename = $_POST['file'];

 $image = file_get_contents($filename);

 $image = imagecreatefromstring($image);

 $width = imagesx($image);
 $height = imagesy($image);

 $m_aspect = 164.0 / 48.0;
 $i_aspect = $width / $height;

 if($i_aspect < $m_aspect)
 {
$percent = 48.0 / $height;
$new_height = $height * $percent;
$new_width = 11.875 * $new_height / 6.0 * $width / $height;
 }
 else
 {
$percent = 164.0 / $width;
$new_width = $width * $percent;
$new_height = 6.0 * $new_width / 11.875 * $height / $width;
 }

 $image_p =imagecreatetruecolor($new_width, $new_height);
 imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

 for($i = 0; $i < $new_height; $i++)
 {
$rgb =ImageColorAt($image_p, 0, $i); // OPTIMIZED
$r = dechex(($rgb >> 16) & 0xFF); // OPTIMIZED
$g = dechex(($rgb >> 8) & 0xFF); // OPTIMIZED
$b = dechex($rgb & 0xFF); // OPTIMIZED
echo '' . strtoupper(dechex(rand(0, 15))); // OPTIMIZED
for($j = 1; $j < $new_width; $j++)
{
 $rgb = ImageColorAt($image_p, $j, $i);
 $r = dechex(($rgb >> 16) & 0xFF);
 $g = dechex(($rgb >> 8) & 0xFF);
 $b = dechex($rgb & 0xFF);
 if(strlen($r) < 2)
 {
$r = '0' . $r;
 }
 if(strlen($g) < 2)
 {
$g = '0' . $g;
 }
 if(strlen($b) < 2)
 {
$b = '0' . $b;
 }
// NO OPTIMIZATION echo '' . strtoupper(dechex(rand(0, 15))) . '';
 if($rgb != ImageColorAt($image_p, $j - 1, $i)) // OPTIMIZED
 { // OPTIMIZED
echo ''; // OPTIMIZED
 } // OPTIMIZED
 echo strtoupper(dechex(rand(0, 15))); // OPTIMIZED
} // OPTIMIZED
echo ''; // OPTIMIZED
echo ' ' . "\n\n";
 }

 imagedestroy($image);
 imagedestroy($image_p);
?>

Posted by Super Coder