Two WPT Levels Decomposition for Color Image Cryptography

Abstract: Digital color image is one of the most important types of data used due to the large number of computerized applications that are needed for mankind. The importance of digital color image force use to seek a good method of cryptography to protect the image from any unauthorized party. In this paper research we will introduce a method of color image cryptography, this method will be implemented and tested, we will show the main positive characteristics of this method and we will prove that this method satisfies the requirement of good methods of cryptography.    Keywords: Cryptography, WPT, Decomposition, Level, PSNR, Error, Encryption Time.