[SOLVED] imagettftext() does not use the color I specify

[sneamia]

<?
$img = imagecreatefromgif('resources/sig_bg.gif');

$background = imagecolorallocate($img, 0, 0, 0);
$white = imagecolorallocate($img, 255, 255, 255);

$bbox = imagettfbbox(16, 0, 'resources/CALIBRIB.TTF', 'wrong');
imagettftext($img, 16, 0, 455 - $bbox[2], 70, $white, 'resources/CALIBRIB.TTF', 'wrong');

header('Content-type: image/png');
imagepng($img);
imagedestroy($img);
?>

 

As you can see, I open an image stored locally on my server.  It then uses imagettftext to write white text on the image.  However, this is where it screws up.  The text it writes is black, not white.  I'm not entirely sure what I am doing wrong.  Any ideas?

 

I tried $img = imagecreate(500, 100); and it writes the text correctly, with the correct color.  It seems like there is something incompatible when I use imagecreatefromgif and imagettftext.

[d.shankar]

Try now dude this will work

 

<?php
$img = imagecreatefromgif('resources/sig_bg.gif');

$background = imagecolorallocate($img, 0, 0, 0);
$white = imagecolorallocate($img, 255, 255, 255);

$bbox = imagettfbbox(16, 0, 'resources/CALIBRIB.TTF', 'wrong');
imagettftext($img, 16, 0, 455 - $bbox[2], 70, $white, 'resources/CALIBRIB.TTF', 'wrong');

header('Content-type: image/png');
imagegif($img);
imagedestroy($img);
?>

 

[sneamia]

Honestly, why do you think exporting as a gif would change the color of the text?

 

It doesn't work for me.  And you also keep the header as image/png while exporting imagegif.

[d.shankar]

Then atleast you must use a PNG Image

 

[code=php:0]
$im    		 = 	imagecreatefrompng($image_path);

[/code]

 

The only way.

[sneamia]

Can you explain what that has to do with text color?

[d.shankar]

Can i know something ??

 

Why are u trying to mix up PNG and GIF .. is this how PHP GD suggests you to use ??

 

My code is running perfect here. I dont what's up with your side. ??

[Barand]

Strange one. I had to use my own gif and font (arial) but your code worked fine - white text ??? ???

 

 

@d.shankar

 

GIF was converted to GD image format

GD image was converted to PNG on output.

 

Nothing wrong with that. In fact that's how to convert a file from one format to another.

 

[GingerRobot]

I agree; very strange. My only thought is that it might be something to do with the fact that gifs are limited to 256 colours. I'm not sure if that could possibly cause a problem though.

 

I wonder if you could perhaps supply the image you're working with so I could test it with that. Also, what version of PHP and GD are you using?

[Barand]

(Just had same thought, GR)

 

I wonder if it's a pallette issue.

 

Check the value of $white. If it's -1 the allocation failed. (Full pallette?)

 

In that case try

 

$white = imagecolorexact($img, 255,255,255) // if it's already in pallette

or

$white = imagecolorclosest($img, 255,255,255) // get nearest to white from pallette

[sneamia]

Yea, it seemed to be the color palette.  I just stuck with png.  Thanks guys.

[corbin]

White was probably the transparency color, and it was being made black for some reason....  I guess that's what you meant by palette problem though. ;p