Feature Frame Watermarking
HEDLEY C. MORRIS, Imad Muhi El-Ddin · 2018 52nd Asilomar Conference on Signals, Systems, and Computers · 2007
A new transformation based on Projective Area- Invariants is presented. This transformation allows an image with a distinguished triangle to be put in correspondence with a set of affine invariant universal images. By using these images to define embedding locations an affine invariant watermarking process is defined. To locate these watermarks results from shape theory are introduced. The algorithm is illustrated by application to a set of standard images.