Watermarking Image

[graham23s]

Hi Guys,

 

When i upload and merge my watermark .png on to my  images it still shows the square border rather than just the logo, the square borders should be invisible.

 

My watermark code:

	 // DEFINITIONS...
     define('WATERMARK_OVERLAY_IMAGE', '../img/img-wmLogo.png');
     define('WATERMARK_OVERLAY_OPACITY', 100);
     define('WATERMARK_OUTPUT_QUALITY', 100);

Function code:

function create_watermark($source_file_path, $output_file_path)
{
 list($source_width, $source_height, $source_type) = getimagesize($source_file_path);
 if ($source_type === NULL) {
 return false;
 }
 
 switch ($source_type) 
 {
 case IMAGETYPE_GIF:
 $source_gd_image = imagecreatefromgif($source_file_path);
 break;
 case IMAGETYPE_JPEG:
 $source_gd_image = imagecreatefromjpeg($source_file_path);
 break;
 case IMAGETYPE_PNG:
 $source_gd_image = imagecreatefrompng($source_file_path);
 break;
 default:
 return false;
 }
 
 $overlay_gd_image = imagecreatefrompng(WATERMARK_OVERLAY_IMAGE);
 $overlay_width = imagesx($overlay_gd_image);
 $overlay_height = imagesy($overlay_gd_image);
 imagecopymerge($source_gd_image,$overlay_gd_image,$source_width - $overlay_width,$source_height - $overlay_height,0,0,$overlay_width,$overlay_height,WATERMARK_OVERLAY_OPACITY);
 imagejpeg($source_gd_image, $output_file_path, WATERMARK_OUTPUT_QUALITY);
 imagedestroy($source_gd_image);
 imagedestroy($overlay_gd_image);
 
}

It appears like: http://www.camnev-electronics.com/wwwwwwwwwwwwwwwwwwwwwwwww-2743.html and http://www.camnev-electronics.com/test-2739.html

 

I know nothing about photoshop but my designer has swore blue the background is transparant, is this a coding problem would you say? i can't think of what else to chjeck.

 

any help would be appreciated!

 

cheers guys

 

Graham

[Psycho]

Can you provide a sample of the wartermark image?

 

FYI: Based upon the two links provided, it seems you used two different images for the watermark and you received two different results (one is partially transparent and the other is not transparent at all). Since the same code was changed, my initial reaction is that the difference is caused by the different images.

[graham23s]

Hi P,

 

Ah that is because i messed with the opacity settings here:

define('WATERMARK_OVERLAY_OPACITY', 100);

I used 100 for the black one, and 50 for the transparent one

 

Here is the latest one: http://www.camnev-electronics.com/img/img-wmLogo.png and another: http://www.camnev-electronics.com/img/wmlogo1.png

 

I cannot figure it out at all lol

 

cheers P

 

Graham