Application of Fourier CGH digital watermarking technique in color image Forgery-Prevention printing
Mingwei Wang · Journal of Optoelectronics·laser · 2008
Based on Fourier CGH technique,a digital watermarking system for the color image print-and-scan process is presented.The Fourier CGH digital watermarking technique is applied in color image forgery prevention printing.And we also designe an extracting program in the system.Compared with other digital watermarking system that aims at printscan process,the system has the advantages of large information capacity and blind detection.Moreover,the hidden information also survives cropping and scaling attacks.The system can be applied to the color image Forgery Prevention Printing.