note 51540 deleted from ref.image by tularis
| From: | tularis@php.net | Date: | Sun, 29 Jun 2008 21:08:04 +0000 |
| Subject: | note 51540 deleted from ref.image by tularis | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-140950@lists.php.net to get a copy of this message | ||
Note Submitter: snagnever at gmail dot com
----
Here i'm again... i have made little improvements on the last post, so i'll post the new
one here. The same that the old one image to "asci"
<?php
//
// image2asci - test script 2
// by sn4g <snagnever@gmail.com>
// 2005 - april - 2
// simple script that read "each" pixel from a image and
// outputs an html colorized version of it.
//
$name = basename($_GET['name']);
$file = "/path/to/images/" . $name;
if( file_exists($file) ) {
$what = getimagesize($file);
switch( $what['mime'] ){
case 'image/png' : $src_id = imagecreatefrompng($file); break;
case 'image/jpeg': $src_id = imagecreatefromjpeg($file); break;
case 'image/gif' : $old_id = imagecreatefromgif($file); $src_id =
imagecreatetruecolor($what[0],$what[1]); imagecopy($src_id,$old_id,0,0,0,0,$what[0],$what[1]);
break;
default: break;
}
}
else die("No such file");
if( $src_id ){
$x_size = imagesx($src_id);
$y_size = imagesy($src_id);
// if it really read each pixel, it'd be too slow and heavy. so, here we determine
// how many pixels the script must 'jump' each loop. tip: y jump must be greater
// than the x jump, to decrease the distorcion.
$x_jump = 2;
$y_jump = 3;
// char/strings that will construct the image. it's randomly selected after,
// in the loop. a value in the array will be one pixel in the asci-image.
$pixel_char = array(0);
echo "The image is $x_size x $y_size\n";
echo "<span style='font-size:8px; font-weight:bold;'>";
echo "<pre>";
// now it has a 'nested loop' to read 'each' pixel and print it
for( $y = 0; $y < $y_size; $y+=$y_jump ){
for( $x = 0; $x < $x_size; $x+=$x_jump ){
if( $x >= $x_size || $y >= $y_size ) break;
$rgb = @imagecolorat($src_id, $x, $y);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
if( $x >= $x_size ) break;
if( $y >= $y_size ) break;
$pc = rand(0,count($pixel_char)-1);
$pc = $pixel_char[$pc];
echo "<font style='color:rgb($r,$g,$b)'>$pc</font>";
} // end of 'x' loop
echo "\r\n"; // end of a line
} // end of 'y' loop
}
?>