Encryption of Digital Image Using Polyharmonic Function

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  • 419 多重調和関数を用いたディジタル画像の暗号化

Abstract

In the interpolation method using B-spline, points must be assigned in a gridiron layout. In the method using polyharmonic function, arbitrary points can be assigned instesd of a gridiron layout therefore it becomes easy to interpolate. This method requires a boundary geometry of the region and arbitrary internal points. We applied this theory to the encryption of digital image and obtained satisfactory results.

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