Vol. 30, Issue 2-3, pp. 335-347 (2000)

Vol. 30 Issue 2 pp. 335-347

Compression of greyscale images based on sub-band decomposition using morphological filters

Pniewski Jacek, Szoplik Tomasz

Abstract

We present an algorithm for compression of greyscale images, which is a modification of the morphological sub-band decomposition algorithm proposed by Pei and Chen. In the first step, an input image is decomposed into four sub-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 presented.

Vol. 30
Issue 2
pp. 335-347

1.36 MB

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Optica Applicata
Wrocław University of Science and Technology
Faculty of Fundamental Problems of Technology
Wybrzeże Wyspiańskiego 27
50-370 Wrocław, Poland

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Wrocław University of Science and Technology
Faculty of Fundamental Problems of Technology
Wybrzeże Wyspiańskiego 27
50-370 Wrocław, Poland

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