A New Watermarking Algorithm for Scanned Grey PDF Files Using Robust Logo and Hash Function. - Walid Alakk; Hussain Al-Ahmad (BCS International IT Conferenc, 2014)

A new watermarking algorithm for scanned grey PDF files using DWT and hash function. - Walid Alakk; Hussain Al-Ahmad; Alavi Kunhu (CSNDSP, 2014)