Title :
Combining vector quantization and histogram equalization
Author :
Cosman, Pamela C. ; Gray, Robert M. ; Riskin, Eve A.
Author_Institution :
Inf. Syst. Lab., Stanford Univ., CA, USA
Abstract :
Histogram equalization is performed on the codebook of a tree-structured vector quantizer. Encoding with the resulting codebook performs both compression and contrast enhancement. It is also possible to perform intensity windowing on the codebook, or a combination of intensity windowing and histogram equalization so that these need not be separate post-processing steps
Keywords :
data compression; encoding; picture processing; trees (mathematics); codebook; compression; contrast enhancement; encoding; histogram equalization; image enhancement; intensity windowing; tree-structured vector quantizer; vector quantization; Biomedical imaging; Decoding; Histograms; Image coding; Image reconstruction; Image retrieval; Information systems; Laboratories; Pixel; Vector quantization;
Conference_Titel :
Data Compression Conference, 1991. DCC '91.
Conference_Location :
Snowbird, UT
Print_ISBN :
0-8186-9202-2
DOI :
10.1109/DCC.1991.213378
