What is psnr in steganography?
PSNR is one of metrics to determine the degradation in the embedded image with respect to the host image..
Hiding messages in digital data. See http://en.wikipedia.org/wiki/Steganography which will help. Read More
Steganography is good with JAVA because JAVA is a highly secured language. If we use steganography with JAVA, it will enforce multiple levels of security of data. form: RISHU Read More
The only real advantages of using Java for steganography is that it has built in support for reading and storing various image types (probably the most common medium used for steganography). Other than that, it's no more suitable than any other language than can read from and write to files. Read More
Steganography is hiding a message within something else, in such a way so that someone who doesn't know it is there will have trouble finding it. It is not considered to be as good as encryption, since it is not really hard to discover by people looking for it. Read More
I think no same meaning , only spellings are different. Read More
I think you mean "Steganography". Read More
Some uses are: Signals Analysis, DSP, cryptography, steganography, and image editing. Read More
The obvious advantage of steganography is that you can hide a secret message in another message, be it text, image, audio, or whatever media you decide to hide your secret in. The main problem with this is that either you or the person you're sending the "secret" message to need to be able to find the message. And if you can find it, then the bad guys you want to keep the message a secret… Read More
The advantage of steganography, over cryptography alone, is that messages do not attract attention to themselves. Plainly visible encrypted messages-no matter how unbreakable-will arouse suspicion, and may in themselves be incriminating in countries where encryption is illegal.Therefore, whereas cryptography protects the contents of a message, steganography can be said to protect both messages and communicating parties. However, it can also pose serious problems because it's difficult to detect. Network surveillance and monitoring systems will not… Read More
Three methods of cryptography are Substitution (substituting one symbol for another), Transposition (rearranging the order of the characters), and Steganography (hiding the existence of the message). Read More
The biggest problem steganography faces is that of size. There is a limit to the size of a file which you can embed information into. For instance if you take a 16 bit image where each pixel is 4 bytes in three colours RGB you can only reliable encode the lower byte before the colour changes become visible in the viewed image. This means that the image you are embedding your data in has to… Read More
Precisely Timed Signal Transmission in Neocortical Networks with Reliable transmission using temporal phase coded optical signals with ... to the existing WDM network for optical steganography transmission. Read More
2000 Pontiac bonivelle with dual zones ac and heat when put to ac on both sides blows cold on psnr side and hot on driver side any suggestions?
I had the same problem on my 2000 Bonneville, its low on refrigerant in the AC cooling system which means it has a leak somewhere. Have the pressure in the AC cooling system checked by a professional. They can inject a dye into the system and check it with a black light to find where the leak is and fix it. Read More
Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity. =) Hope this helps. Read More
main diff is cryptography in change the code format of original data & image stenography hide the data behind other file not change the data code this is main diff b/w image stenography & cryptography. Read More
Abdelrahman Desoky has written: 'Noiseless steganography' -- subject(s): COMPUTERS / Security / General, Electronics in espionage, Data transmission systems, COMPUTERS / Security / Cryptography, Coding theory, Data encryption (Computer science), Confidential communications, BUSINESS & ECONOMICS / Management Read More
Unix is designed to be a more open operating system than closed, so 'hiding' data is not something that is typically done. The operating system does not really have any way of hiding data, other than the use of encryption, or steganography, etc., which really aren't a function of the operating system software. Read More
Yes - the technique is called steganography, which is the practice of hiding data within image files. However, the process is not practical for hiding multiple messages or images within images - the clue for anyone viewing the data is an unusually large image file. If privacy is a concern, encryption would be a better avenue to pursue. Read More
Cryptography takes a file and transforms it, through a cryptographic algorithm, into a new file (usually of about the same size - although it may also pad it to bring it up to a standard size). This new file is known as cyphertext. The original file (also known as clear text) can be recovered from the cyphertext by application of the decryption algorithm. Usually the encryption requires some kind of "key" as part of the… Read More
Encryption is the process of making information unreadable except to intended recipient by means of codes, cyphers, steganography, etc. DES - Data Encryption Standard 128 bit encryption - used by browsers to communicate with secure servers RSS - Proprietary large prime number based encryption PGP - Open source encryption similar to RSS WEP - Wired Equivalence Privacy, 40 or 128 bit encryption for secure Wi-Fi etc. Read More
Consider Watson's, Holmes', and Hilton Cubitt's reactions: ". . . See what you can make of that, friend Watson." He tossed a sheet of paper upon the table, and turned once more to his chemical analysis. ___I looked with amazement at the absurd hieroglyphics upon the paper. ___"Why, Holmes, it is a child's drawing!" I cried. ___"Oh, that's your idea!" ___"What else should it be?" ___"It is certainly rather a curious production," said Holmes. "At… Read More
It's called steganography. Clear-text or cipher-text is merged with existing data and, depending on the format, slightly alters the existing data to conceal the source data. For example, if I'm sending you a complex color picture with high resolution and 24 or more bits per pixel, I can "steal" 1 or 2 low order bits for my own uses. This would probably cause a chance in the color picture so minor human eyes cannot discern… Read More
There are numerous medical terms that mean "record or a photo" usually with the word part -graph- in them. The following list contains some medical term examples: agraphesthesia, agraphia, allograph, anapnograph, anepigraphous, autograph, cablegram, cacographer, calcography, calligraphy, cartography, carve, cerography, chalcography, cheirography, choreography, chorography, chronogram, chrysography, cinematography, cryptography, crystallography, dactylography, decagram, demographics, diagram, epigraph, ethnography, flexography, geography, graft, gram, grammar, grammatolatry, gramophone, graph, graphemics, graphic, graphite, graphologist, graphomania, graphonomy, graphopatholigist, graphophobia, graphthomancy, greffier, Hagiographa, haplography… Read More
Masters is always MORE and HIGH VALUE than a Bachelors. It's really very Wrong to Compare BE / Btech to MCA, because, as you all know that BE / Btech is NOT Eligible for doing Ph.D (CS/IT), as MCA degree is Eligible for Ph.D The Person, Who Compare BE / Btech to MCA should study about the Difference between a Bachelor's and a Master's Degree. MCA is Equivalent to ME (Computer Science and Engineering). Particularly… Read More
John trithemius born 1462 died 1516, was a monk and a magician from worship of the virgin. To magic is a strange move but his initiation is uncertain, as he is surrounded by mystery, and it wasnt until after his death that any real idea of his activities was formed. It was obvious he studied the cabala and also wrote a book called "antepallus maleficiorum comprehensus", which was a book of the classification of witches… Read More
You just want to make a software that can watermark numeric datasets through pattern generation technique but you don't have any idea what types of patterns can be generated for numeric datasets?
I don't believe this to be possible. Watermarking a data set intrinsically alters the data such that the original data cannot be recovered without knowing what the original data set was, or what pattern generated the data set. Knowing either of these would defeat the purpose of watermarking. Watermarking is commonly used in steganography, a technique used to encrypt a payload (the watermark) within an image (the carrier). However the image is altered in such… Read More
More Suggestions Agent Oriented Programming We need open architectures that continuously change and evolve to accommodate Crusoe Processor Mobile computing has been the buzzword for quite a long time Mobile Processor In January of 2000, Transmeta Corporation introduced the Crusoe processors Tele Immersion Tele-Immersion is a new medium that enables a user to share a virtual space Suggestions: * Face Recognition Technology * DNA Computing in security * 4g Wireless Systems * Spyware and Trojan… Read More
SYLLABUS OF III SEMISTER B.E. COMPUTER SCIENCE (SEMISRER PATTERN) 33CSI: Applied Mathematics Unit 1 : Integral TransformsFourier integral theorem, Fourier and Laplace transforms and their simple properties, Simple properties of Laplace transforms to-solve ordinary differential equation including Application to one dimensional partial differential equations. The z-transform definition and properties, inversion, with Laplace transform, Application of z-transform to solve difference with constant coefficient. Unit 2: Complex VariableAnalytic function, Cauchy-Riemen condition, conjugate, function, singularities, Cauchy's integral theorem… Read More
Sathyabama University (Established under section (3) of UGC Act, 1956) Jeppiaar Nagar, Chennai 600 119. DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION ENGINEERING B.E Curriculum BATCH (2006-2010) SEMESTER I No Subject Code Subject Name *Periods/Week Int. Marks Max. Marks in Univ. Exam Total Marks Min. Marks in Univ. Exam Min. Pass Marks Exam Duration in hrs. L T P THEORY 1 6C0001 English 4 1 0 20 80 100 35 50 3 2 6C0002 Engineering Mathematics-I 4… Read More