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Add random line noise, adjust amount of static

This commit is contained in:
Skylar Ittner 2017-06-09 13:03:14 -06:00
parent cbbd8859c8
commit 8cc0315cf7
1 changed files with 10 additions and 2 deletions
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12
api.php
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@ -61,12 +61,20 @@ switch ($VARS['action']) {
imageSaveAlpha($img, true);
$black = imagecolorallocate($img, 0, 0, 0);
$white = imagecolorallocate($img, 255, 255, 255);
for ($i = 0; $i < 512; $i++) {
// Add static noise
for ($i = 0; $i < 150; $i++) {
imagesetpixel($img, mt_rand(0, 63), mt_rand(0, 63), $black);
}
for ($i = 0; $i < 256; $i++) {
for ($i = 0; $i < 75; $i++) {
imagesetpixel($img, mt_rand(0, 63), mt_rand(0, 63), $white);
}
// Add lines
for ($i = 0; $i < 2; $i++) {
imageline($img, mt_rand(0, 63), mt_rand(0, 63), mt_rand(0, 63), mt_rand(0, 63), $black);
}
for ($i = 0; $i < 5; $i++) {
imageline($img, mt_rand(0, 63), mt_rand(0, 63), mt_rand(0, 63), mt_rand(0, 63), $white);
}
imagepng($img);
exit();
case "verify":