1994 Articles

On discrete dyadic wavelets for contrast enhancement

Laine, Andrew F.; Fan, Jian; Schuler, Sergio

In this paper, we establish a mathematical connection between dyadic-wavelet-based contrast enhancement and traditional unsharp masking. Our derivation is completely based in the discrete domain. These findings may provide a better theoretical understanding of these algorithms, and facilitate the acceptance of multiscale enhancement techniques applied to medical imaging.