J. Pniewski et T. Szoplik, Compression of greyscale images based on sub-band decomposition using morphological filters, OPT APPL, 30(2-3), 2000, pp. 335-347
we present an algorithm for compression of greyscale images, which is a mod
ification of the morphological sub-band decomposition algorithm proposed by
Pei and Chen. In the first step, an input image is decomposed into four su
b-bands using morphological opening and closing filters. In the second step
, sub-bands are compressed with lossless methods matched to the dynamics of
each sub-band. After transmission the sub-bands are decompressed and added
together to form the output image. Results of computer simulations are pre
sented.