problem displaying white text on php generated images

contactspark

Hello,

Still working on an application to dynamically generate images with PHP. I have run into another small problem though.

I am watermarking a jpeg in the image I'm dynamically generating. I would like to display white text on the background but when the image is displayed, the text ends up just being transparent.

I know that usually this is solved by doing an imagefill with the desired background color but I can't do that is this case as it would blot out portions of the watermarked image.

Any ideas on how to display white text on a non-white watermarked image without making the text transparent?

Thanks!

sks1024

put this code in a page called pic.php and call it after you have watermarked the image. it will use that image a write text to it

header("Content-type: image/jpeg");

$imgsize = getimagesize("/path_to_photo/photo_name");

$newwidth = $imgsize[0];

$newheight = $imgsize[1];

$image = imagecreatefromjpeg("/path_to_photo/photo_name");

$newimage = imagecreate($newwidth, $newheight);

$white = imagecolorclosesthwb($image, 255,255,255);

imagestring($image, 5, 5, 5, "your_text_here", $white);

imagecopymerge($newimage, $image, 0, 0, 0, 0, $newwidth, $newheight,100);

imagejpeg($newimage);

imagedestroy($newimage);

Then called the image with

Working example is at www.finaticsportfishing.com/fishingreports

Click on a post with a picture with it

contactspark

Hey - thanks for the reply. I actually figured it out on my own by just trying a bunch of different stuff. I found that the simplest way to get white text on a nonwhite background (or any other color come to think of it) is to create the color variables using the imagecolorresolve function. In other words, instead of $white=imageColorAllocate($image,255,255,255); I used $white=imageColorResolve($image,255,255,255);.

Now I just need to figure out how to kern text with the imagettftext command. Any ideas?

Thanks,
Sung

sks1024

Not sure what you mean by kern

contactspark

I guess I might have been using the word wrong - it might actually be kerning - I just don't use the word often in regular discourse.

Kern or Kerning or whatever is the spacing between individual letters horizontally. Basically I want to be able to set constraints on widths of words in an image. That might mean either stuffing a large word into a smaller space or expanding a small word into larger space.

In other words - say I'd like to have the word "drunk" fill the same space as the word "inebriated" or vice versa.

INEBRIATED
D R U N K

Thanks,
Sung