Sharpening enhancement of digitized mammograms with complex symmetric Daubechies wavelets

L. Gagnon, J.M. Lina, B. Goulard
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society  
Some complex symmetric Daubechies wavelets provide a natural way to calculate zerocrossings because of a hidden "Laplacian operator" in the imaginary part of the scaling function. We propose a simple multiscale sharpening enhancement algorithm based on this property. The algorithm is tested on low-contrast digitized mammograms.
doi:10.1109/iembs.1995.575241 fatcat:socjqb655fajvatdlkwjtklalq