Capacity and Security analysis of watermark image truly imperceptible

Abstract: In this paper capacity and security of invisible watermarked is enhanced. It provides secure, imperceptible robust communication of high amount of information by hiding secret bits of information with a digital content as a cover .Objective of information hiding is to embedding secret information as much as possible without perception of carrier is affected. To hide the secure data information hiding algorithm LSB bit Based on high frequency domain in color image is proposed which provides high imperceptibility and high capacity of information hiding. It allows adding high amount of hidden copyright notices or other verification messages as much as possible to images which is imperceptible to human eyes.

Keywords: Digital Watermarking, Invisible Watermarking, Security, Capacity, Imperceptibility, PSNR, Frequency domain.