Multi-Class Classification for Identifying JPEG Steganography Embedding Methods

Name: Multi-Class Classification for Identifying JPEG Steganography Embedding Methods
Brand: Biblioscholar
SKU: 9781288311934
Price: 334.82 RON
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Autor: Benjamin M Rodriguez

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334.82 lei

Over 725 steganography tools are available over the Internet, each providing a method for covert tra...

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Autor

Benjamin M Rodriguez

Limbă

engleză

Legare

Carte - Carte broșată

Publicat

2012

Pagini

194

EAN

9781288311934

ISBN

9781288311934

Enbook ID

08242968

Editura

Biblioscholar

Greutate

354

Dimensiuni

189 x 246 x 10

Descriere completă

Over 725 steganography tools are available over the Internet, each providing a method for covert transmission of secret messages. This research presents four steganalysis advancements that result in an algorithm that identifies the steganalysis tool used to embed a secret message in a JPEG image file. The algorithm includes feature generation, feature preprocessing, multi-class classification and classifier fusion. The first contribution is a new feature generation method which is based on the decomposition of discrete cosine transform (DCT) coefficients used in the JPEG image encoder. The generated features are better suited to identifying discrepancies in each area of the decomposed DCT coefficients. Second, the classification accuracy is further improved with the development of a feature ranking technique in the preprocessing stage for the kernel Fisher's discriminant (KFD) and support vector machines (SVM) classifiers in the kernel space during the training process. Third, for the KFD and SVM two-class classifiers a classification tree is designed from the kernel space to provide a multi-class classification solution for both methods. Fourth, by analyzing a set of classifiers, signature detectors, and multi-class classification methods a classifier fusion system is developed to increase the detection accuracy of identifying the embedding method used in generating the steganography images.

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Multi-Class Classification for Identifying JPEG Steganography Embedding Methods

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