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In this paper a novel “Discrete Cosine Transformation based Image Authentication & Secret Message Transmission Scheme” (DCTIASMTT) has been proposed to authenticate a multimedia image and at the same time some ubiquitous secret message or image can be transmitted over the mobile network. Instead of direct embedding a message or image(More)
In this paper a novel technique, Discrete Fourier Transformation based Image Authentication (DFTIAT) has been proposed to authenticate an image and with its own application one can also transmit secret message or image over the network. Instead of direct embedding a message or image within the source image, choosing a window of size 2 × 2 of the(More)
In this paper a novel technique, Authentication and Secret Message Transmission using Discrete Fourier Transformation (ASMTDFT) has been proposed to authenticate an image and also some secret message or image can be transmitted over the network. Instead of direct embedding a message or image within the source image, choosing a window of size 2 x 2 of the(More)
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