Method and apparatus for checking the quality of composings for

Details Method and apparatus for checking the quality of composings for Method and apparatus for checking the quality of composings for

1984-07-27

1987-05-19

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358282, 382 56, H04N 140

Patent

active

046672478

ABSTRACT:
Record quality of a bit map of a newspaper page, for example, is checked directly on a display screen without previously manufacturing a material image carrier, such as a film. For this purpose, it is read out in multi-line fashion, preferably in 4 - line fashion. Squares consisting of m (preferably likewise 4) successive points of n (preferably 4) superimposed lines are grouped into one "superpixel" each, and its gray value, for example, is determined as an average of the black-white values of the individual pixels forming the square. The superpixel is displayed with its gray value as a single point on the display screen instead of the m.times.n square.

REFERENCES:
patent: 4303948 (1981-12-01), Arai et al.
Soft Typography, by Christopher Schmandt, "Information Processing" 80, S. H. Lavington (ed.), pp. 1027-1031.
Abbreviated Character Font Display by C. R. Bringol, IBM Technical Disclosure Bulletin, vol. 19, No. 9, Feb. 1977, pp. 3248 and 3249.
All-Points-Addressable Raster Scan Graphics for Cathode Ray Tube with Dual-Ported Bit Map by D. A. Kummer et al, IBM Technical Disclosure Bulletin, vol. 23, No. 8, Jan., 1981, pp. 3553-3555.
A Soft-Edged Character Set and Its Derivation, by A. J. Wilkes et al, The Computer Journal, vol. 25, No. 1, 1982, pp. 140-145.

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