A TECHNIQUE TO GUARANTEE 2:l COMPRESSION AND ENHANCEMENT OF HALFTONE PICTURES
Original Publication Date: 1980-Apr-30
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
In a general image transmission system using data compression, an image input terminal scans the image, quantizes the data and compresses it prior to transmission or storage. The transmission or storage bandwidth is typically less than that of the input terminal so that a guaranteed real time minimum compression ratio, n, is required.