All the images on this site are produced by members of the research group or their associates. The name of the person responsible for each image is given on each picture.

The images are also encoded with a DigiMarc™ digital watermark. This embeds some extra information into each image which can be used to tell that the image is from this site. A code number is linked to the DigiMarc web site which gives details of the owner of the image. Click here to follow an example encoded link from the images on this site. This is done as a precaution to prevent improper use of our images. If you want to use a particular image for some purpose, please contact David Nash.