NEW APPROACH AND TECHNIQUES FOR INFORMATION HIDING METHOD IN IMAGE DATA
Data hiding, a form of steganography, embeds identification code
(watermark or digital signature) into digital data for the
purpose of identification annotation, copyright and data
confidentiality. Watermark is an invisible mark placed in an
image that later can be detected. Watermarking techniques sign
images by introducing changes that are imperceptible to the
human eye but easily recoverable by a computer program.
Sometimes embed data remains present within the data after any
decryption process - data hiding exactly intended to complement
cryptographic processes. Several techniques are discussed as
possible methods for hiding data in image signal in this paper.
Keywords: watermarking, image data protection, data hiding, steganography, transmission security