Title :
Gradient-based predictor for diagonal edge pixels in JPEG-LS
Author :
Edirisinghe, E.A. ; Bedi, S.
Author_Institution :
Dept. of Comput. Sci., Loughborough Univ., UK
fDate :
10/25/2001 12:00:00 AM
Abstract :
JPEG-LS predictors have been optimised for the accurate prediction of pixels in the locality of horizontal/vertical edges. Here a low cost technique that accurately predicts the values of pixels along diagonal edges is proposed. It is shown that the proposed technique outperforms JPEG-LS in terms of predicted mean squared error, by a margin of up to 11 23%
Keywords :
data compression; edge detection; image coding; prediction theory; JPEG-LS predictors; diagonal edge patterns; diagonal edge pixels; gradient-based predictor; image compression; low cost technique;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010909
