DocumentCode
1349287
Title
A JPEG variable quantization method for compound documents
Author
Konstantinides, K. ; Tretter, Dan
Author_Institution
Stream Machine, San Jose, CA
Volume
9
Issue
7
fYear
2000
fDate
7/1/2000 12:00:00 AM
Firstpage
1282
Lastpage
1287
Abstract
We present a JPEC-compliant method for the efficient compression of compound documents using variable quantization, based on the DCT activity of each 8×8 block, our scheme automatically adjusts the quantization scaling factors so that test blocks are compressed at higher quality than image blocks. Results from three different quantization mappings are also reported
Keywords
code standards; data compression; discrete cosine transforms; document image processing; image coding; image segmentation; quantisation (signal); telecommunication standards; transform coding; DCT activity; JPEG variable quantization method; compound documents; efficient compression; image quality; image segmentation; quantization mappings; quantization scaling factors adjustment; test blocks compression; Discrete cosine transforms; Huffman coding; Image coding; Image resolution; Image segmentation; Material storage; Pixel; Q factor; Quantization; Transform coding;
fLanguage
English
Journal_Title
Image Processing, IEEE Transactions on
Publisher
ieee
ISSN
1057-7149
Type
jour
DOI
10.1109/83.847840
Filename
847840
Link To Document