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33.2: Image Enhancement in JPEG Domain for Low‐Vision Patients
Author(s) -
Tang Jinshan,
Peli Eli
Publication year - 2002
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1830950
Subject(s) - jpeg , quantization (signal processing) , weighting , computer science , computation , computer vision , artificial intelligence , decoding methods , table (database) , image (mathematics) , algorithm , data mining , medicine , radiology
An image enhancement algorithm for low‐vision television viewing was developed. The algorithm enhances the images in the JPEG/MPEG domain by weighting the quantization table. The advantages of our algorithm are threefold: (1) Low computation (only a change of the 8×8 quantization table in the decoding stage); (2) Suitable for real‐time application; and (3) easily manipulated by individual users, because the enhancement level can be controlled at the receiver.