Discrete transforms - Open Access .click

, 2021
With the development of Internet networks, the importance of information security is becoming more and more significant. Therefore, it is considered necessary to study the existing methods in order to develop them for creating more suitable approaches ...
J. Sharafi, Y. Khedmati, M. Shabani
semanticscholar +1 more source

Discrete Cosine Transform

IEEE Transactions on Computers, 1974
A discrete cosine transform (DCT) is defined and an algorithm to compute it using the fast Fourier transform is developed. It is shown that the discrete cosine transform can be used in the area of digital processing for the purposes of pattern recognition and Wiener filtering.
Ahmed, N., Natarajan, T., Rao, K. R.
openaire +2 more sources

Application of discrete transforms with selective coefficients for blind image watermarking

Transactions on Emerging Telecommunications Technologies, 2019
Watermarking scheme is not helpful in conveying the original image continually so as identifying the owner's mark from the watermarked image. In the current situation, our chosen topic is significant in real‐time applications like fraud recognition ...
E. L. Lydia +4 more
semanticscholar +1 more source

mathematics
computer science
engineering

telecommunication
physics
classification

fos: mathematics
discrete version of topics in analysis
data structure