Selective edge enhancement of images with an acousto-optic light modulator.
We show experimental results for image processing using an acousto-optic light modulator (AOLM) where the image can be edge enhanced with respect to the input object. We can select which edges are enhanced and the degree to which they are enhanced by changing the amplitude of the acoustic wave of the AOLM. We relate this technique to the fractional Hilbert transform and the fractional derivative image-processing operations and discuss its application to phase-only input images.
Davis
Jeffrey A
JA
Department of Physics, San Diego State University, California 92182-1233, USA. jdavis@sciences.sdsu.edu
Nowak
Maria D
MD