[badtz]

I'm not sure if anything like this exists but it's worth a shot

Is there some type of code that can read through an image and find if that image contains a special watermark (that's not visible on the photo unless you zoom in 100%) ...... ?

There's PHP classes that can add the watermark, but I'm trying to find one that verifies if the picture has it in there somewhere.

Any help would be great!

[ralph4208w]

I'm not familiar with the php classes which you've mentioned, but I would think that such an image evaluation tool would be very complex. Modifying an image is one thing, but deducing the content of the image is a much more complicated process. So, I'd venture a guess that a free/public image evaluation program is probably not available. Please let us know if you find something.