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What else can I help you with?
How do you calculate a PSNR for an image?
Peak Signal-to-Noise Ratio (PSNR) is calculated by first determining the Mean Squared Error (MSE) between the original and distorted images. MSE is computed by averaging the squared differences of pixel values. The PSNR is then calculated using the formula: ( PSNR = 10 \times \log_{10} \left(\frac{MAX^2}{MSE}\right) ), where ( MAX ) is the maximum possible pixel value (e.g., 255 for 8-bit images). Higher PSNR values indicate better image quality.
Why steganography is good with java?
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
What is digital steganography?
Hiding messages in digital data. See http://en.wikipedia.org/wiki/Steganography which will help.
Source code for psnr of image using matlab?
To compute the Peak Signal-to-Noise Ratio (PSNR) of an image in MATLAB, you can use the following code: function psnr_value = compute_psnr(original, distorted) mse = mean((original(:) - distorted(:)).^2); % Calculate Mean Squared Error if mse == 0 psnr_value = Inf; % If no difference, PSNR is infinite else max_pixel = max(original(:)); % Maximum pixel value psnr_value = 10 * log10(max_pixel^2 / mse); % Calculate PSNR end end Call the function with two images as inputs: compute_psnr(original_image, distorted_image).
Where is steganography used?
Stenography is when someone is ored
What is audio steganography?
Audio steganography means that the hide the information in that audio formate on the audio formate by using the LSB ,Echo,phase and spread spectrum coading. in these steganography method is most usefual and good method to hide the data in audio formate but one major disadvantage is if in audio steganography metod in processing data in that some intrupts are ocurred then input is not equal to output.
What are the advantages of using steganography technique with java?
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.
What is steganography?
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.
Who developed Stenography or father of Steganography?
The concept of steganography, the practice of hiding information within other non-secret text or data, can be traced back to ancient times. One of the earliest documented uses is attributed to the ancient Greeks, particularly the historian Herodotus, who noted that messages were hidden on wooden tablets. However, the term "steganography" itself was coined much later, in the 17th century, by the German scholar Johannes Trithemius in his work "Steganographia." Thus, while there isn't a single "father" of steganography, Trithemius is often recognized for formalizing the concept.
Difference bitween steganography and stegnography?
I think no same meaning , only spellings are different.
What is the comparison between stenography and cryptography in terms of gray level?
I think you mean "Steganography".
What are the benefits of steganography?
Steganography offers several benefits, including enhanced security for sensitive information by concealing data within other non-suspicious files, making it less likely to be detected by unauthorized parties. It helps maintain privacy and confidentiality, especially in communication, by obscuring the existence of the message itself. Additionally, it can be used for digital watermarking, allowing for the protection of intellectual property and verification of content authenticity. Overall, steganography provides a layer of security that complements encryption techniques.
