GD color to texture

Would it be remotely possible to, using GD library and PHP, parse a given image and find a specified color and replace it with an image texture?

I know how to replace it with another color, but a texture I don't. I couldn't find the solution anywhere :/

Please help?

 

1st, remotely ? I'd download the image first and then work with it.
2nd, if GD can't do it, maybe you can read the docs of ImageMagick

 

I don't know how well this would work, but it should produce something close.

I'd start by creating a new image the size of the image to be worked on, and using imagecopy to tile in the texture.
Then I would use imagecolortransparent and imagecopymerge to set the desired color to transparent in the source image and copy the source image over the newly created texture tiled image.

 

Joebert: I tried what you said but unfortunately i am getting a problem with the transparency.

<?php
$tile = $_GET['img']; 
header( "Content-type: image/png" );    
$src = imagecreatefrompng("tile1.png");    
$color = imagecolorclosest($src, 0, 148, 255);
imagecolortransparent($src, $color);
$new = imagecreatetruecolor(50, 50);
imagealphablending($src, true);
imagesavealpha($src, true); 
imagecopy($new, $src, 0,0,0,0,50,50);
$texture = imagecreatefrompng("_volanic_real.png");
imagecopymerge($new, $texture, 0, 0, 0, 0, 50, 50, 0);
$color = imagecolorclosest($src, 0, 148, 255);
imagecolortransparent($src, $color);
imagepng( $new );
imagedestroy($new);
?>

PHP:

This just prints the image that I am trying to replace with a texture, but instead of the transparent part---I just get black.

Help would be appreciated.

 

I think you had too much transparency stuff going on. This worked out for me.

<?php
   
$src = imagecreatefrompng('pacman.png');    
$color = imagecolorclosest($src, 27, 26, 55);
imagecolortransparent($src, $color);
imagealphablending($src, true);
imagesavealpha($src, true);

$texture = imagecreatefrompng('pattern.png');

$new = imagecreatetruecolor(460, 460);

imagecopy($new, $texture, 0, 0, 0, 0, 460, 460);
imagecopymerge($new, $src, 0, 0, 0, 0, 460, 460, 100);

imagepng($new, 'test.png');
imagedestroy($new);
imagedestroy($src);
imagedestroy($texture);

?>

PHP: