NEW APPROACH AND TECHNIQUES FOR INFORMATION HIDING METHOD IN IMAGE DATA

Jozef Chaban

   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

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