Bøger af Ashok Kumar K

The algorithm focuses on VLSI implementation of an invisible-robust and an invisible-fragile spatial domain watermarking algorithm. The VLSI chip can insert any one or both the watermarks depending on the requirements of the user. The proposed watermarking chip can be easily incorporated as a module in any existing JPEG encoder and a secured JPEG encoder can be developed. In existing system, a watermarking encoder that can perform invisible robust, invisible fragile watermarking and combination of both in spatial domain. The chip can be easily integrated in any marking and combination of both in spatial domain. The chip can be easily integrated in any existing JPEG encoder to watermark the images right at the source end.