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In order to protect the copyright of the image, this paper proposes a image zero-watermarking method based on lifting wavelet, where methods of classical Cryptology is employed. A series of experiments have been carried out and the results proved that the presented method has strong robustness comparing with other watermarking methods.
This paper presents a new Huffman coding method based on number character. The traditional 256 code table is replaced by the 0-9 character, the space character and the enter character in this method. Meanwhile it illustrates that the value of entropy has close relations with the probability model of signal; that the same signal has various entropies under different models; and that the probability...
A polynomial-approach method for image compression coding was presented for the first time to the small complex traffic image. We analyzed the image scanning method affect to the polynomial-approach method. Furthermore, we also researched the way of accumulation that can make the violent wobble of the curve became more gentle. Finally, we propose an approach, which has three steps: raster scanning...
There is data that shows that economic lose of several ten millions to a few hundred millions US$ at many prosperous nations every year because of traffic jam. One aspect of ITS (intelligence transportation system) aims at the characteristics of the traffic image. We plan to combine image compression and traffic application together. The basic thought of our method is make the image data into one...
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