A Survey on Digital Image Steganographic Methods
نویسندگان
چکیده
Many approaches and techniques are available in the literature for information hiding. Figure 1 shows a generic embedding and extracting scheme. The inputs to the embedding scheme are the hiding message, the cover data and an optional public or secret key K. The output is stego data, also called stego object. Inputs to the generic extracting scheme are the tested data, the secret or public key, and the original cover data besides information about steganographic scheme used. The output is the extracted message. Steganographic techniques can be divided into various categories. The basic and most common ABSTRACT
منابع مشابه
A Survey on Image Steganography and Steganalysis
Steganography and steganalysis are important topics in information hiding. Steganography refers to the technology of hiding data into digital media without drawing any suspicion, while steganalysis is the art of detecting the presence of steganography. This paper provides a survey on steganography and steganalysis for digital images, mainly covering the fundamental concepts, the progress of ste...
متن کاملA Survey on Digital Image Steganography and Steganalysis
Steganography is an information security approach used to hide messages inside suitable covers in such a way that it is not known to attackers. The cover files may be any digital data including Image or Audio files. For steganography several methods exists where each of them has some advantages and disadvantages. Steganographic applications have varying requirements depending upon the steganogr...
متن کاملEncryption based LSB Steganography Technique for Digital Images and Text Data
Digital steganography is the art and science of hiding communications; a steganographic system thus embeds secret data in public cover media so as not to arouse an eavesdropper’s suspicion. A steganographic system has two main aspects: steganographic capacity and imperceptibility. However, these two characteristics are at odds with each other. Furthermore, it is quite difficult to increase the ...
متن کاملHybrid and Blind Steganographic Method for Digital Images Based on DWT and Chaotic Map
Steganography is the art and science of hiding secret information into digital media with the intention to transmit this information. Most of the steganographic methods either use spatial domain or frequency domain for embedding the secret information. Current hybrid methods require the original cover image to extract the secret information making these methods to become not practical. This pap...
متن کاملData embedding in digital images using critical functions
In this paper, ‘‘uniform embedding’’ (independent of image contents and pixel correlations while embedding) and ‘‘adaptive embedding’’ (depend on image contents and pixel correlations while embedding) in image steganography are investigated. A compact steganographic embedding function is proposed to ensure the correctness and efficiency, and a pixel correlation function is utilized to discrimin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011