626 search results - page 42 / 126 » An ACO algorithm for image compression |
EGITALY
2006
14 years 11 months ago
2006
Palette re-ordering is a well known and very effective approach for improving the compression of color-indexed images. If the spatial distribution of the indexes in the image is s...
IJHPCA
2008
14 years 9 months ago
2008
Principal component analysis (PCA) is an effective tool for spectral decorrelation of hyperspectral imagery, and PCA-based spectral transforms have been employed successfully in co...
ICIP
2004
IEEE
15 years 11 months ago
2004
IEEE
In order to obtain a high resolution image from a compressed video sequence it is essential to correctly estimate the motion vectors in the sequence. Most of the approaches report...
ICIP
1997
IEEE
15 years 11 months ago
1997
IEEE
An embedded wavelet coder algorithm which adopts different threshold values in different subbands is proposed in this work. The new image coder, called the multi-threshold wavelet...
ICPR
2008
IEEE
15 years 4 months ago
2008
IEEE
Stop word detection is attempted in this work in the context of retrieval of document images in the compressed domain. Algorithms are presented to identify text lines and words an...