Seyed شاشدی ءخاشئئشیه ههشذشقه - dept. of Information, Communication & Security Technology Malek Ashtar University of Technology of TehranRasht, Guilan

This Reduction in time consumption of optimized digital image watermarking using genetic algorithm and robust against cropping attack is presented here. By using genetic algorithm with the main conventional image watermarking algorithm, the time consumption for embedding is increased by increasing the resolution of the cover images. Using regions of interest in image watermarking for dividing the cover image to regions which are less imperceptible and have high robustness after embedding is a pre-processing technique that in one way decreases the time consumption of embedding by separating the regions of interest of the cover image, however, this pre-processing algorithm increases the time consumption. To overcome this problem, the chromosome lengths of the genetic algorithm can be shortened by changing the indicators of the regions of interest.

component;Cropping; Image; Regions of Interest; Time Consumption; Watermarking