Selective Crypting with Haar-Wavelets
نویسنده
چکیده
The coefficients of a wavelet–decomposition form into different levels according to the size of the described details. This can be utilized to crypt only a part of the given data while keeping the rest unchanged so that critical information is filtered out. I achieved this idea with Haar–wavelets for a special type of data and show in addition an a priori error estimation.
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تاریخ انتشار 1998