# Discrete Cosine Transformation

### INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES MANAGEMENT DISCRETE COSINE TRANSFORMATION FOR ANALYSIS OF IMAGE

**discrete**

**cosine**transform (DCT) expresses a sequence of finitely many data points in terms of a sum of

**cosine**functions oscillating at different ...perform

**discrete**

**cosine**...

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### Text hiding using Discrete Cosine Transformation (DCT)

**Discrete**wavelet

**transformation**,

**Discrete**

**Cosine**

**Transformation**and many ...implement

**Discrete**

**Cosine**

**Transformation**(DCT) as steganography ...

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### Four dimensional matrix discrete cosine transformation based remote education video compression technical research

**discrete**

**cosine**

**transformation**-based video compression algorithm can do without adopting motion compensation techniques among intra-frame ...

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### An Improved Discrete Cosine Transformation Block Based Scheme for Copy-move Image Forgery Detection

**discrete**

**cosine**

**transformation**(DCT) segments the image into spectral sub-bands of varying ...current

**discrete**

**cosine**

**transformation**(DCT) was improved and the dimension of ...

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### Image Fusion Based On Sparse Sampling Method And Hybrid Discrete Cosine Transformation

**Discrete**

**Cosine**...

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### Privacy Preserving Clustering Based on Discrete Cosine Transformation

**Discrete**

**cosine**

**transformation**is a unitary

**transformation**, which can preserve the Euclidian distances between original and transformed ...the

**transformation**matrix with the original ...

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### Image Compression Algorithms under JPEG with Lapped Orthogonal Transform and Discrete Cosine Transformation

**discrete**

**cosine**transform). Now here Lapped Orthogonal Transform and

**Discrete**

**Cosine**

**Transformation**are using with JPEG 2000 ...The

**discrete**

**cosine**transform is a fast ...

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### A JPEG Discrete Cosine Transformation Based Coding Technique for Image Data

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### Robust Digital Image Watermarking Technique using Image Normalization and Discrete Cosine Transformation

**discrete**Fourier transform (DFT) of an image is computed and then the Fourier-Mellin transform is performed on the magnitude, the watermark is embedded in the magnitude of the resulting ...

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### Discrete cosine transformation, Elliptic curve digital signature algorithm, Image authentication, imperceptibility, JPEG, Public key cryptography.

**discrete**logarithm problem (ECDLP) and ECDLP is significantly more difficult than IFP (Integer Factorization Problem) and DLP (

**Discrete**Logarithm Problem) ...

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### A Digital Image Watermarking Method in the Discrete Cosine Transformation Domain

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### A low-power and high-quality implementation of the discrete cosine transformation

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### Effect of Secret Image Transformation on the Steganography Process by using LSB & DCT Techniques

**Discrete**Fourier

**transformation**(DFT),

**discrete**

**cosine**

**transformation**(DCT), and

**Discrete**Wavelet

**transformation**(DWT) are used to embed the secret image data in the ...

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### Face Recognition using Two Dimension Fractional Discrete Cosine Domain and BPNN

**Discrete**Fourier

**Transformation**representation allows manipulating the information content of the image globally by means of spatial manipulations of the transformed ...that

**Discrete**...

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### A Comparative Study on ROI-Based Lossy Compression Techniques for Compressing Medical Images

**Discrete**

**Cosine**

**Transformation**(DCT), Embedded Zero-tree Wavelet (EZW) coding, Set Partition In Hierarchical Tree (SPIHT) Algorithm, Zero-Tree Entropy (ZTE) Coding Algorithm and Singular Value ...

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### Analysing and evaluating a dual sensor autofocusing method for measuring the position of patterns of small holes on complex curved surfaces

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### AN APPROACH FOR COMPRESSING DIGITAL IMAGES BY USING RUN LENGTH ENCODING

**transformation**which is related to the Fourier

**transformation**which is similar to the

**discrete**Fourier

**transformation**but it uses only real ...sample.

**Discrete**...

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### A Survey on Different Watermarking Approaches

**transformation**specific. In case of spatial domain based approaches, the information message is directly embedded in the ...

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### Image Compression – Decompression using Polynomial Based Wavelet Transformation in PDF Document

**discrete**wavelet transform (DDWT) is a generative method of image blur that determines wavelet analysis of a blurred ...Polynomial

**Discrete**

**Cosine**

**Transformation**Lossless Image ...

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### An Improved Technique for Hiding Secret Image on Colour Images using DWT, DCT, SVD

**Discrete**

**Cosine**

**Transformation**the functions of the oscillation coefficient in various frequencies reveal a limited sequence of data points in ...total.

**Discrete**

**Cosine**...

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