cosine transform
Invisible Watermarking Audio Digital with Discrete Cosine Transform
... Security is one of the most important parts now, related to copyright which has a royalty to the content owner, this content are an audio file, invisible watermarking is one of the types of techniques that can be used to ...
5
Review Paper on 8-bit Discrete Cosine Transform using Common Boolean Logic Adder
... Discrete Cosine Transform for picture ...Discrete Cosine Transform is executed by utilizing just 6 CORDIC squares which needs just 6 ...
6
Efficient Sentence Embedding using Discrete Cosine Transform
... Vector averaging remains one of the most pop- ular sentence embedding methods in spite of its obvious disregard for syntactic structure. While more complex sequential or convolu- tional networks potentially yield ...
7
Evolution of the discrete cosine transform using genetic programming
... Discrete Cosine Transform (DCT). The cosine transform has been heavily researched and many efficient methods have been determined and successfully applied in practice; this paper presents a ...
10
Digital Image Watermarking Technique Using Discrete Wavelet Transform and Discrete Cosine Transform
... wavelet transform and discrete cosine transform has been presented, where the method operates in the frequency domain embedding a pseudo- random sequence of real numbers in a selected set of DCT ...
10
Relation of Generalized Two Dimensional Fractional Cosine Transform with Other Transform
... Fractional Cosine Transform (FRCT) is a generalization of the ordinary cosine transform and it has similar relationship with Fractional Fourier Transform ...fractional cosine ...
9
Convolution theorem for generalized two dimensional fractional cosine transform
... Hartley transform, fractional Hadamard transform, fractional cosine transform and fractional sine transform ...Fractional cosine transform is the extension of ...
5
Grayscale Image Compression using Discrete Cosine Transform
... Abstract - Image compression is the reduction or elimination of redundancy in data representation in order to achieve reduction in storage and communication cost. [1] Discrete cosine transform (DCT) is ...
8
Dual watermarking for video using discrete cosine transform
... the transform domain is represented in terms of its frequency coefficients and in spatial domain it is represented by ...Simply, transform domain means the image in the form of multiple frequency ...the ...
8
Computation of Hilbert Transform via Discrete Cosine Transform
... Hilbert transform (HT) is an important tool in constructing analytic signals for various purposes, such as envelope and instantaneous frequency analysis, amplitude modulation, shift invariant wavelet analysis and ...
6
A Generalized Approach to Linear Transform Approximations with Applications to the Discrete Cosine Transform
... linear transform approxima- tion for input set for different overall compu- tational resources with minimum ...to transform each input element with an approximation operator, such that we satisfy the ...
17
Empirical Analysis of Invariance of Transform Coefficients under Rotation
... radial transform and polar harmonic transforms such as polar cosine transform, polar sine transform and polar complex exponential transforms, are used for feature extraction in various image ...
9
Polar Harmonic Transform for Fingerprint Recognition
... Polar Harmonic Transforms (PHTs) are a set of 2D transforms which are based on a set of orthogonal projection bases, to generate a set of features which are invariant to rotation [1]. PHTs represent a set of transforms ...
6
VLSI Architecture for 2-D Sub-band Wavelet Transform using 9/7 Wavelet Coefficient
... wavelet transform (DWT) over the unitary transforms like discrete wavelet transform (DWT), discrete cosine transform (DCT), discrete sine transform (DST) and discrete Fourier ...
6
A review of Image Compression
... (DiscreteFourier Transform) and DCT (Discrete Cosine Transform) areused to change the pixels in the original image into frequencydomain coefficients (called transform ...
5
Analysis of Efficiently Lossless Compression of Color Image by using Deferent Algorithms
... discrete cosine transform (MDCT), which is focused around a DCT of covering ...8 transform coefficient show in which the (0,0) component (upper left) is the DC (zero-frequency) part and sections with ...
5
PERFORMANCE ANALYSIS OF DUAL CHANNEL SPEECH ENHANCEMENT METHOD WITH DCT AND HADAMARD TRANSFORMS USING NORMALIZED LATTICE RECURSIVE LEAST SQUARE ALGORITHM
... Discrete Cosine Transform and Hadamard ...Discrete Cosine Transform ...Hadamard transform, which frequency alignment is performed for the DCT samples; this process is useful for ...
9
SIMULINK BASED PROPOSED MODEL FOR IMAGE COMPRESSION AND COMPARISION WITH OTHER IMAGE COMPRESSION TECHNIQUE
... Image compression is much necessary to improve storage capacity of images and also for utilizing transmission bandwidth. There are two types of image compression techniques lossless and lossy image compression technique. ...
8
PAPR Reduction in UF OFDM and F OFDM 5G Systems using ZCT Precoding Technique
... Fourier Transform (DFT), Discrete Cosine Transform DCT) and Zadoff-Chu Transform (ZCT) are implemented using MATLAB for F-OFDM and UF-OFDM ...Zadoff-chu Transform precoding technique ...
7
Performance Study of Several Methods and Selected Wavelets for Image Compression
... Fourier Transform (FFT), Discrete Cosine Transform (DCT), Discrete Wavelet Transform (DWT) methods are used to process a test image is measured and compared in terms of parameters such as ...
7