Rotation-invariant Denoising Algorithm for Cyclic and Dihedral Symmetry Images
Jian Jiang Lu · Computer and Modernization · 2009
A rotation-invariant denoising algorithm is proposed for restoring noisy images with cyclicr and dihedral symmetries.Based on the rotation-invariant(or plus reflection invariant) characteristic of cyclic(or dihedral) images,the proposed algorithm is performed successfully by rotating(or plus reflecting) and summing the noisy images.Experimental results show that,compared with other classic denoising methods,the proposed algorithm can restore the symmetric images efficiently.