SEO URL for full image?

What do I have to do to ensure that the full images get an SEO URL?
I have activated colorbox.

The full image URL:

/zp-core/full-image.php?a=land-xyz/asdfghjk&i=PICT0023.JPG&q=75&wmk=%21&dsp=Protected%20view&check=a67bfe9d0c89713d651f13cff7a04d944812f233

in the source code:

<div id="image"><strong><a href="/zp-core/full-image.php?a=land-xyz/asdfghjk&amp;i=PICT0023.JPG&amp;q=75&amp;wmk=%21&amp;dsp=Protected%20view&amp;check=a67bfe9d0c89713d651f13cff7a04d944812f233" title="PICT0023" class="fullimage cboxElement"><img src="/cache/land-xyz/asdfghjk/PICT0023_600.jpg" alt="PICT0023" width="400" height="600"></a></strong></div>