A method for verifying the authenticity of a captured image, said captured image being generated by an image capturing system having means for measuring a plurality of parameters associated with said captured image and means for watermarking said plurality of parameters within said captured image, said method comprising the steps of:
- specifying at least one of said plurality of parameters to be measured and watermarked by said image capturing system;
- capturing an image of a desired object with said image capturing system;
- watermarking said captured image of said object with said specified parameters;
- generating a corresponding verification key based on said watermarked parameters;
- storing said watermarked image and said corresponding verification key;
- retrieving said watermarked image and said corresponding verification key;
- extracting from said watermarked image said watermarked parameters using said verification key;
- comparing said extracted parameters with said specified parameters to determine if said extracted parameters match said specified parameters.