Watermarking-MATLAB codes update/edit-Mathematical model

IF YOU'RE NOT FAMILIAR WITH THIS WORK PLEASE DON'T BID ON THIS PROJECT I have a matlab codes I need to update/ edit to add more features to it. Then I need full mathematical model for the whole system. Mathematical model is the description of the any system in terms of mathematical equations instead of codes. The software is about stereo video watermarking, that means you need good knowledge in both mathematical frequency transformations and MATLAB. I attached few articles for reference. Full description and all the codes/materials will be sent to the nominated freelancer only . You have a quick look to the attached papers to check if you are familiar with this job. AGAIN, if you're not familiar with this work please don't bid on this project. Good Luck ! P.S. , This is no easy few code lines project, it needs high proficiency in this specific field