Global ETD Search
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Showing 1 to 4 of 4 for “"Image steganography"”.
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Adaptive spatial image steganography and steganalysis using perceptual modelling and machine learning
Image steganography is a method for communicating secret messages under the cover images. A sender will embed the secret messages into the cover images according to an algorithm, and then the resulting image will be sent to the receiver. The receiver can extract the secret messages with the …
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Steganography-based secret and reliable communications: Improving steganographic capacity and imperceptibility
Unlike encryption, steganography hides the very existence of secret information rather than hiding its meaning only. Image based steganography is the most common system used since digital images are widely used over the Internet and Web. However, the capacity is mostly limited and restricted by the …
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Comparison of data hiding using LSB and DCT for image
Steganography is the art and science of hiding information by embedding data into cover media. There are two main domains namely spatial and frequency domain. In this project, a comparison is made between hiding in spatial domain using LSB technique and hiding in frequency domain using DCT …