Image enhancement with symmetric Daubechies wavelets

Jean-Marc Lina; Langis Gagnon

doi:10.1117/12.217575

1 September 1995 Image enhancement with symmetric Daubechies wavelets

Jean-Marc Lina, Langis Gagnon

Proceedings Volume 2569, Wavelet Applications in Signal and Image Processing III; (1995) https://doi.org/10.1117/12.217575
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

It is shown that analyses based on Symmetric Daubechies Wavelets (SDW) lead to a multiresolution form of the Laplacian operator. This property, which is related to the complex values of the SDWs, gives a way to new methods of image enhancement applications. After a brief recall of the construction and main properties of the SDW, we propose a representation of the sharpening operator at different scales and we discuss the `importance of the phase' of the complex wavelet coefficients.

Citation Download Citation

Jean-Marc Lina and Langis Gagnon "Image enhancement with symmetric Daubechies wavelets", Proc. SPIE 2569, Wavelet Applications in Signal and Image Processing III, (1 September 1995); https://doi.org/10.1117/12.217575

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