The research team is composed of five senior researchers, one postdoctoral researchers and one PhD student.
The main objectives of the project are to design, develop and test prototypes for the RDH modules and for the RDH-compressors both for graylevel and color images. Our preliminary high capacity RDH schemes are already the state-of-the-art in data hiding and can provide, for graylevel images, embedding bitrates of more than 3 bits per pixel. Improvement of about 0.1 to 0.3 bpp are expected. Besides lossless compressors, the high capacity RDH schemes can be used in complex metadata embedding applications (e.g. embedding images into images). The preliminary RDH-compression rates are similar with the ones of JPEG-LS. The expected prototypes will outperform the compression rates of JPEG-LS and will be rather similar with the ones of PNG and JPEG 2000, with the advantage of immediate access to image content, without any computation. The interest in RDH-compressors is broad and covers any application where digital images are stored, retrieved, manipulated, received or transmitted.
