Instantly share code, notes, and snippets.

Embed
What would you like to do?
Damn Simple PHP Ascii Art Generator
#!/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;
}
@ghost

This comment has been minimized.

Show comment
Hide comment
@ghost

ghost Sep 21, 2013

Can't you replace:

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

$chars = array_reverse($chars);

$c_count = count($chars);

with:

$chars = "#0XT|:.' ";

$c_count = strlen($chars);

I'm not understanding why the array_reverse() is being used as you can declare the array in reverse to begin with. Also the chars do not need to be in an array as a string is already indexed. $chars[1] for instance will grab the 2nd char from a string. Other than that, awesome script! =o)

ghost commented Sep 21, 2013

Can't you replace:

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

$chars = array_reverse($chars);

$c_count = count($chars);

with:

$chars = "#0XT|:.' ";

$c_count = strlen($chars);

I'm not understanding why the array_reverse() is being used as you can declare the array in reverse to begin with. Also the chars do not need to be in an array as a string is already indexed. $chars[1] for instance will grab the 2nd char from a string. Other than that, awesome script! =o)

@donatj

This comment has been minimized.

Show comment
Hide comment
@donatj

donatj Dec 3, 2013

Its declared as an array rather than a string to allow me to use multibyte characters more easily, I'm not here but I had experimented with it.

As for the array_reverse, its simply so its easier for my brain to wrap it self around, starting at lightest and going to darkest. That is all.

Owner

donatj commented Dec 3, 2013

Its declared as an array rather than a string to allow me to use multibyte characters more easily, I'm not here but I had experimented with it.

As for the array_reverse, its simply so its easier for my brain to wrap it self around, starting at lightest and going to darkest. That is all.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment