A Review on Data Hiding Techniques in Compressed Video
نویسندگان
چکیده
منابع مشابه
A Review on Data Hiding Techniques in Compressed Video
This paper presents various Data Hiding techniques of video in compressed domain. Data is embedded into digital media for the purpose of identification, annotation, copy right and tampering detection. The identification purpose mainly falls into the area of cloud computingmaking sure that the sender is the one intended; annotation refers to the property of tagging or giving captions to the vide...
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In this paper we propose a new adaptive block based compressed domain data hiding scheme which can embed relatively large number of secret bits without significant perceptual distortion in video domain. Macro blocks are selected for embedding on the basis of low inter frame velocity. From this subset, the blocks with high prediction error are selected for embedding. The embedding is done by mod...
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Reversible data hiding (RDH) has been intensively studied in the community of signal processing. Also referred as invertible or lossless data hiding, RDH is to embed a piece of information into a host signal to generate the marked one, from which the original signal can be exactly recovered after extracting the embedded data. The technique of RDH is useful in some sensitive applications where n...
متن کاملHigh-Capacity Data Hiding in MPEG-2 Compressed Video
A technique for high capacity data hiding in MPEG-2 streams is presented. The objective is to maximise the payload while keeping robustness and simplicity. Ancillary data is embedded in the host signal by modulating the quantized block DCT coefficients of I frames. To achieve robustness, each information bit is embedded in more than one DCT coefficient within each intra coded block. The extract...
متن کاملA Review On Data Hiding Techniques In Encrypted Images
Now a days there is very big problem of data hacking into the networking era. There are number of techniques available in the industry to overcome this problem. So, data hiding in the encrypted image is one of the solution, but the problem is the original cover cannot be losslessly recovered by this technique. That’s why Recently, more and more attention is paid to reversible data hiding (RDH) ...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2016
ISSN: 0975-8887
DOI: 10.5120/ijca2016908091