Search
Search Results
-
An Error Free and key sensitive color Image Encryption using Sine powered map and Arnold transform in Stockwell domain
This paper presents a new image encryption technique which can securely transmit images over unsecured networks. The security of transmitting...
-
Image encryption using discrete orthogonal Stockwell transform with fractional Fourier transform
In this article, a new image encryption algorithm has been proposed for image security. This algorithm is created with discrete orthogonal Stockwell...
-
Secure Evaluation of Discrete Sine Transform in Homomorphic Encrypted Domain
Discrete sine transform (DST) is widely used in compression encoding, image processing, and speech enhancement. In cloud computing, outsourcing...
-
Color image encryption based on discrete trinion Fourier transform and compressive sensing
To protect visual content in color images, this paper presents an encryption method by employing discrete trinion Fourier transform and compressive...
-
A sine transform based preconditioned MINRES method for all-at-once systems from constant and variable-coefficient evolutionary PDEs
In this work, we propose a simple yet generic preconditioned Krylov subspace method for a large class of nonsymmetric block Toeplitz all-at-once...
-
A multicriteria optimization of the discrete sine transform for versatile video coding standard
The additional discrete transforms from cosine (DCT) and sine (DST) families that come with the Adaptive Multiple Transform (AMT) approach is one of...
-
Improved discrete Tchebichef transform approximations for efficient image compression
In recent years, the Discrete Tchebichef Transform (DTT) has gained popularity as a signal processing tool for image and video compression due to its...
-
A new image/video encryption scheme based on fractional discrete Tchebichef transform and singular value decomposition
One of the major application areas of the fractional-order discrete transform (FrDTs) is in signal and information security, particularly in signal...
-
The Discrete Cosine Transform (DCT)
The Fourier transform and the DFT are designed for processing complex-valued signals, and they always produce a complex-valued spectrum even in the...
-
An adaptive approach for multi-media steganography using improved chaotic map and discrete cosine transform
Steganography is the process of hiding secret data within the image, audio or the text files. Video steganography is a technique where the secret...
-
Transform Coding
The essence of transform coding is to transform signals from one domain (e.g., time domain) to another domain (e.g., frequency domain) with a set of...
-
A synergetic image encryption method based on discrete fractional random transform and chaotic maps
The discrete fractional random transform (DFrRT) has excellent mathematical properties and inherent randomness feature from the Fourier Transform...
-
The relationship between graph Fourier transform (GFT) and discrete cosine transform (DCT) for 1D signal and 2D image
Graph Fourier transform (GFT) is an important theoretical tool in spectral analysis of graph signal. This paper focuses on Laplacian-based GFT on two...
-
The Discrete Fourier Transform in 2D
The Fourier transform is defined not only for 1D signals but for functions of arbitrary dimension. Thus, 2D images are nothing special from a...
-
A novel watermarking technique for video on android mobile devices based on JPG quantization value and discrete cosine transform approach
In today's communication era, social media and sharing data through the world wide web plays a substantial role. As per a recent survey, 80% of...
-
A new two-dimensional sine-coupled-logistic map and its application in image encryption
Chaotic map has some important features such as unpredictability, ergodicity, and complexity. When chaotic map is widely used for information...
-
FPGA-based implementation of the VVC low-frequency non-separable transform
The Versatile Video Coding (VVC) standard, released in July 2020, brings better coding performance than the High-Efficiency Video Coding (HEVC)...
-
Sine cosine bird swarm algorithm-based deep convolution neural network for reversible medical video watermarking
Recently, advancements in multimedia have made a huge impact on watermarking technologies. The digital video watermarking is the process of embedding...
-
A binary hybrid sine cosine white shark optimizer for feature selection
Feature Selection (FS), a pre-processing step used in the majority of big data processing applications, aims to eliminate irrelevant and redundant...
-
Error analysis of the exponential wave integrator sine pseudo-spectral method for the higher-order Boussinesq equation
In this paper, we derive a new exponential wave integrator sine pseudo-spectral (EWI-SP) method for the higher-order Boussinesq equation involving...
