The Research Of Anti-print-and-scan Attack On Color Digital Image Watermarking

This paper mainly study anti-print and scan color image watermarking algorithm, By analyzing the anti-print and scan digital watermarking algorithm status,and print scanned color image data before and after the proposed effective anti-Print and Scan Color Image Watermarking Algorithm.This paper analyzes the process of color printing digital image scanning effect, according to the image scanned by the printing of its DCT coefficient analysis, the brightness of the color image components on a color digital image watermark embedding watermarking algorithm.To ensure the quality of color images in the case, can effectively increase the embedding capacity, and anti-print scan attack.Based on the Minimal Brightness Variation Quadruple, according to the color relevance, on this basis proposes a spatial domain watermarking algorithm for color digital image.The experiment shows the attack on the print and scan a certain robustness.