Can a watermark be detected in a digital image on a web site?
A. Yes. It is possible to read watermarks embedded in JPEG images published on web sites. It is also possible to read watermarks embedded in Indexed Colour images (GIFs) although it is difficult to guarantee that the watermark can be detected in all circumstances, since this depends upon the size of sample data available and whether excessive image manipulation has taken place. Nonetheless, SureSign should prove to be of immense value to those who wish to monitor the use of their images on the Internet.
