Conversion of higher resolution images for display on a lower-re

Details Conversion of higher resolution images for display on a lower-re Conversion of higher resolution images for display on a lower-re

1993-02-25

1996-06-18

Zimmerman, Mark K.

Image analysis

Histogram processing

For setting a threshold

382232, 382233, H03M 166

Patent

active

055287409

ABSTRACT:
A system for converting a high-resolution bitonal bit map representation of a document to a lower-resolution pixel representation for display. A special subset of the high resolution output is assigned special meanings by codes which are used to produce a real time video signal with higher bandwidth to enhance the resolution and readability of the displayed image on a lower resolution display. This is accomplished by splitting each coded pixel into two or more "twixels". The twixels produced from pixels which are not part of the special subset have the same codes as the corresponding original pixels. The twixels produced from pixels which are part of the special subset have special codes which, when displayed, duplicate certain predetermined high resolution features of the original bitonal pixel-code information on a display.

REFERENCES:
patent: 4829370 (1989-05-01), Mayne et al.
patent: 4843380 (1989-06-01), Oakley et al.
patent: 4924522 (1990-05-01), Bray et al.
patent: 5029107 (1991-07-01), Lee
patent: 5058174 (1991-10-01), Carroll
patent: 5065149 (1991-11-01), Marsh et al.
patent: 5153936 (1992-10-01), Morris et al.
patent: 5179639 (1993-01-01), Taaffe
patent: 5239625 (1993-08-01), Bogart et al.
patent: 5265176 (1993-11-01), Miller
patent: 5315693 (1994-05-01), Hirosawa
Microsoft Corporation; Programmer's Reference, Vol. 1: Overview; 1987-1992; pp. 79-83, 90-97, 102-105, 424-428.
Foley et al., Computer Graphics: Principles and Practice, Second Edition, 1990, pp. 180-184; 820-821; 840-842; 855-861.

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