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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 times 2 of the source image in sliding window manner then convert...
In this paper, we propose data hiding and extraction algorithms for binary images. Handwritten Signature Image can be transmitted from source to target securely over network after processing the source image by using this proposed Data Hiding Algorithm. According to the algorithm, size of the carrier image must be double (or more) the size of source image. If necessary then additional bytes or noise...
In this paper we propose a new Handwritten Signature Recognition Algorithm. The Algorithm is based on pixel-to-pixel relationship between Images. The Algorithms are based on extensive statistical analysis, Standard Deviation, variance and Theory of Cross-Correlation. This is an extension work of Handwritten Signature Identification. This Algorithm supports the application environment and we strongly...
In this paper, we propose a technique for embedding watermark bi-color image into color image. At the source, the handwritten signature image (bi-color image) is encoded at the end of the color image. Double folded security of handwritten signature can be achieved (over the untrusted network) by; first, the starting point of encoding the image data is depended on the size of the images; second, the...
In this paper, we propose a technique for embedding handwritten signature image data into color images and extracting embedded image data from color images. For the sake of security, two watermarked images will be transmitted in different times from the sender's end to the receiver's end, in due course, from two transmitted images, at the receiver's end, original handwritten signature image data will...
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