Digital image encryption method and apparatus based on fractional order transformation
A digital image, fractional-order technology, applied in the field of digital image encryption based on fractional-order transform, can solve the problems of increasing bandwidth cost, incomplete transform domain image statistical characteristics, poor anti-noise and anti-loss performance, etc., to reduce the bandwidth cost. , Improve the anti-statistical attack characteristics, improve the effect of encryption
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[0055]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0056] The embodiment of the present invention provides a digital image encryption method based on fractional transformation. The method combines the spatial domain transformation algorithm and the transformation domain algorithm transformation, so as to realize more complete encryption of images, and can effectively Improve the anti-noise and anti-loss performance during the actual transmission of images, reduce the bandwidth cost brought by the transformation ...
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