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Image Hiding Using Discrete Cosine Transform
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Journal Article
Image Hiding Using Discrete Cosine Transform
2016
Overview
Steganography is a mean of hiding information within a more obvious form of communication. It exploits the use of host data to hide a piece of information in such a way that it is imperceptible to human observer. The major goals of effective Steganography are High Embedding Capacity, Imperceptibility and Robustness. This paper introduces a scheme for hiding secret images that could be as much as 25% of the host image data. The proposed algorithm uses orthogonal discrete cosine transform for host image. A scaling factor (a) in frequency domain controls the quality of the stego images. Experimented results of secret image recovery after applying JPEG coding to the stego-images are included.
Publisher
جامعة بغداد - كلية التربية للبنات
Subject
