Lossy compression of partially masked still images

Author

Bottou, Léon ; Pigeon, Steven

Author_Institution

AT&T Bell Labs., Red Bank, NJ, USA

fYear

1998

fDate

30 Mar-1 Apr 1998

Firstpage

528

Abstract

Summary form only given. This article describes a component of the DejaVu color document image compression. The DejaVu scheme consists in separating the image into (a) a foreground layer containing text and drawings, and (b) a background layer containing background color and the pictures. These two components are then compressed using the most appropriate techniques. This article outlines a wavelet method for encoding the background layer without wasting bits on pixels masked by the foreground layer. Our method handles arbitrarily complex masks with reasonable computational requirements

Keywords

data compression; document image processing; image coding; transform coding; wavelet transforms; DejaVu color document image compression; background color; background layer; computational requirements; drawings; foreground layer; image coding; lossy compression; partially masked still images; pictures; pixels; text; wavelet method; Convergence; Image coding; Image converters; Image decomposition; Image processing; Image segmentation; Pixel; Projection algorithms; Time factors; Wavelet analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Data Compression Conference, 1998. DCC '98. Proceedings

Conference_Location

Snowbird, UT

ISSN

1068-0314

Print_ISBN

0-8186-8406-2

Type

conf

DOI

10.1109/DCC.1998.672238

Filename

672238