Discrete Cosine Transform
Coarse-to-fine copy-move image forgery detection method based on discrete cosine transform
... The used of quantized Discrete Cosine Transform (DCT) for the detection of copy-move forgery was introduced by Fridrich et al. (2003). In their approach, the image was divided into several ...
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Discrete Cosine Transform DCT Methods on Compression RGB and Grayscale image
... popularity[3]. Discrete cosine transform is a function two directions that map the set N of real numbers into the N set of real ...numbers. Discrete Cosine Transform (DCT) is a ...
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Digital Watermarking in Audio Using Least Significant Bit and Discrete Cosine Transform
... technique Discrete Cosine Transform (DCT) and Least Significant Bit ...is Discrete Cosine Transform which divides the image and audio file into parts and applies the protection ...
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Lightweight Floating Point Arithmetic: Case Study of Inverse Discrete Cosine Transform
... To enable floating-point (FP) signal processing applications in low-power mobile devices, we propose lightweight floating-point arithmetic. It offers a wider range of precision/power/speed/area trade-offs, but is wrapped ...
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A Secure Image Steganography Using Advanced Encryption Standard and Discrete Cosine Transform
... The proposed algorithm for embedding and extracting has two levels of security, it is a combination of both AES Cryptographic and DCT Steganographic me- thods which have proved to improve data security as well as the ...
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Colour Image Enhancement Using USM Filtering Using Discrete Cosine Transform
... Abstract-- Numerous image enhancement schemes are being used for improving an image, which includes gray scale manipulation, filtering and Histogram Equalization (HE). Histogram equalization is one of the well-known ...
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Hiding Image in Audio Steganography Using Discrete Cosine Transform and Skin Detection
... Abstract: Now days, security is an important problem in hacking technologies such as internet, digital devices and so on. To solving the security problem using steganography. The paper presents the hiding security image ...
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Face Recognition based on Discrete Cosine Transform and Support Vector Machines
... In this paper a face recognition approach based on discrete cosine transform (DCT) and support vector ma- chines (SVMs) is investigated on two benchmark data bases: Yale and AT&T. An efficient ...
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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 ...
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A comparative analysis of binary patterns with discrete cosine transform for gender classification
... sus Transform and Modified Census Transform for feature extraction, discrete cosine transform for feature transformation and support vector machines for ...Census Transform and ...
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Scaled Discrete Cosine Transform (DCT) using AAN Algorithm on FPGA
... Discrete cosine transform (DCT's) are the most widely used transforms in the signal processing of digital image, video data, especially in the coding for compression ...the Discrete ...
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Performance Evaluation of Image Fusion Based on Discrete Cosine Transform
... Image fusion is done by six different types of image fusion algorithms based on discrete cosine transform (DCT) and fused image quality was evaluated using performance evaluation metrics. Fusion ...
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Biometrics Fingerprint Recognition using Discrete Cosine Transform (DCT)
... Fingerprint identification is one of the most well-known and publicized biometrics. Because of their uniqueness and consistency over time, fingerprints have been used for identification for over a century. In this study, ...
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Digital Image Forgery Detection using Zernike Moment and Discrete Cosine Transform: A Comparison
... S.Murali et al [11] proposed a novel scheme for identifying the location of copy-create and copy move supported tampering algorithms and authenticating an Image by applying the JPEG Block and Direction Filter Techniques. ...
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Digital Image Compression using Block Truncation Coding and Discrete cosine Transform, Hybrid Technique
... The Discrete Cosine Transform (DCT) has been applied extensively to the area of image ...Inverse Discrete Cosine Transform (IDCT) can be used to retrieve the image from its ...
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Human Cell Detection in Microscopic Images through Discrete Cosine Transform and Gaussian Mixture Model
... Discrete Cosine Transform (DCT) is a longstanding technique in the digital image processing ...of cosine functions oscillating at different ...the discrete Fourier transform and ...
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Reversible Data Hiding Technique using Novel Interpolation Technique and Discrete Cosine Transform
... One drawback of the DFT for a few applications is that the change is not simple esteemed, notwithstanding for genuine information. On the other hand, we do not have such issues with the discrete cosine ...
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Abstract— This paper describes the design of two-dimensional discrete cosine transform (DCT) architecture for
... two-dimensional discrete cosine transform (DCT) architecture for Multimedia communication ...to transform the image formation from spatial domain to frequency domain in compact ...
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A Novel Approach On Image Compression Based On Discrete Cosine Transform With MATLAB GUI Coding
... In real life, there are many practical implementation which needs of image compression. Image compression is almost need to use where there is much little storage capacity, like web pages. Each private domain have a ...
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Rapid Prototyping of Field Programmable Gate Array Based Discrete Cosine Transform Approximations
... (FPGA)-based discrete cosine transform (DCT) approximations is presented that can be used to control the coding gain, mean square error (MSE), quantization noise, hardware cost, and power consumption ...
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