Imagecreatetruecolor() Leaves Black Line

Ive been using the GD function imagecreatetruecolor() to resize images on the server and it does the job, but not entirely satisfactorily.

First the output can be quite rough, but the really disturbing habit it has how it leaves a black line to the right and the bottom of resized images.

How do I get it to stop doing that?
zicheAsked:
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RoonaanConnect With a Mentor Commented:
try

     if ($old_width > $old_height)
     {
          $new_width = $MAX_WIDTH;
          $new_height = ceil(($old_height / $old_width) * $new_width);
     } else {
          $new_height = $MAX_HEIGHT;
          $new_width = ceil(($old_width / $old_height) * $new_height);
     }

-r-
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RoonaanCommented:
Make sure your resize script rounds up and does not round down when resizing images.

-r-
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zicheAuthor Commented:
Im a bit rusty with my php skills, here is my size calculation code:

      if ($old_width > $old_height)
      {
            $new_width = $MAX_WIDTH;
            $new_height = ($old_height / $old_width) * $new_width;
      } else {
            $new_height = $MAX_HEIGHT;
            $new_width = ($old_width / $old_height) * $new_height;
      }

Where how do I include rounding up functionality?
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zicheAuthor Commented:
Thanks Roonaan.

You are the one!
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