Title :
Morphological filter for lossless image subsampling
Author :
Casas, Josep R. ; Torres, Luis
Author_Institution :
Dept. of Signal Theory & Commun., Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
We present a morphological filter for lossless image subsampling for a given downsampling-upsampling strategy. This filter is applied in a multiresolution decomposition and results in a more efficient scheme for image coding purposes than other lossy sampling schemes. Its main advantage is a greatly reduced computational load compared to multiresolution schemes performed with linear filters
Keywords :
filtering theory; image coding; image resolution; image sampling; mathematical morphology; computational load reduction; downsampling-upsampling strategy; image coding; linear filters; lossless image subsampling; lossy sampling; morphological filter; multiresolution decomposition; multiresolution schemes; Band pass filters; Filtering; Image analysis; Image coding; Image resolution; Image sampling; Low pass filters; Nonlinear filters; Signal resolution; Spatial resolution;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413487
