14-05-2014, 04:20 PM
Lossless Compression and information hiding in images using Steganography
Abstract:
In this paper a novel method is proposed to provide more security for the key information with the combination of image compression and data encryption method. This method requires less memory space and fast transmission rate because of image compression technique is applied. Steganography plays an important role in information security. It is the art of hiding the fact that communication is takes place, by hiding information in other information. Many different file formats can be used. For hiding secret information in images, there exist a large variety of stenographic techniques some are more complex than others and all of them have respective strong and weak points. Many applications have different requirements of the steganography technique used. Some applications may use absolute invisibility of the secret information, but others require a larger secret message to be hidden. This method has been implemented and tested on varies images and data. It provides better security for encrypted data and no distortion in the image quality.