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This paper presents a novel watermarking method based on fractal theory. In the proposed method, information is embedded into binary document images. First, host image is coded by the proposed fractal coding method which is designed particularly for binary images. To insert the watermark uniformly over the entire host image, specific Range segments with predefined conditions are selected. Then, the...
A pipelined hardware implementation is provided for a fast binary image fractal coding. The related algorithm suggests each range segment, R segment, is classified into three groups of absolutely black, absolutely white, and non-monochrome. For absolutely black and absolutely white R blocks, which are very probable in binary images, the required storage and computation has low cost. For non-monochrome...
This paper presents a novel watermarking method based on fractal theory. In the proposed method, information is embedded into binary document images. First, host image is coded by the proposed fractal coding method which is designed particularly for binary images. To insert the watermark uniformly over the entire host image, only some of Range segments with certain conditions are selected. Then, the...
Process of bank checks and money notes play an important role in today commercial society. Usually automatic teller machines (ATM) have problems with eroded money notes. In this paper we proposed a new method for worn out Farsi money notes recognition using their texture content and wavelet transform. First, with the help of face detection algorithm, the obverse of the money note is separated from...
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