Title
Lossless compression of pre-press images using a novel colour decorrelation technique
Abstract
Most existing lossless image compression schemes operate on grey-scale images. However, in the case of colour images, higher compression ratios can be achieved by exploiting inter-colour redundancies. A new lossless colour transform is presented, based on the KLT. This transform removes redundancies in the colour representation of each pixel and can be combined with many existing compression schemes. In this paper it is combined with a prediction scheme that exploits spatial redundancies. The results proposed in this paper show that the colour transform typically saves about a half to two bits per pixel, compared to a purely predictive scheme.
Year
DOI
Venue
1999
10.1016/S0031-3203(98)00034-X
Pattern Recognition
Keywords
Field
DocType
colour decorrelation,lossless image compression,compression ratio,bits per pixel,lossless compression
Computer vision,Decorrelation,Pattern recognition,Lossy compression,Image processing,Color depth,Pixel,Artificial intelligence,Data compression,Mathematics,Grayscale,Lossless compression
Journal
Volume
Issue
ISSN
32
3
Pattern Recognition
ISBN
Citations 
PageRank 
3-540-63508-4
4
0.58
References 
Authors
6
3
Name
Order
Citations
PageRank
Steven Van Assche1396.90
Wilfried Philips240.58
Ignace Lemahieu358056.84