Method and apparatus for creating multi-gradation data

Details Method and apparatus for creating multi-gradation data Method and apparatus for creating multi-gradation data

1996-04-17

1996-12-17

Herndon, Heather R.

395167, G09G 116

Patent

active

055862330

ABSTRACT:
Method and apparatus for creating multi-gradation data. The method and apparatus generates data having pixel values for respective pixels which comprise each of a plurality of characters in a font, and divides the respective pixels into a plurality of unit regions, a number of the respective pixels being obtained by multiplying a desired number of pixels by a number of pixels included in one unit region of the plurality of unit regions; extracts, for every unit region of the plurality of unit regions, the generated data; generates a multi-gradation data including a plurality of gradation values each gradually representing a different pixel brightness value, by converting, for every unit region, the data into the multi-gradation data in accordance with a plurality of pixel values included in the extracted unit region; and reduces the number of the respective pixels to the desired number of pixels by representing each unit region including the number of pixels with one pixel having a pixel value determined in accordance with the multi-gradation value.

REFERENCES:
patent: 4454506 (1984-06-01), Netravali et al.
patent: 4533942 (1985-08-01), Gall et al.
patent: 4851825 (1989-07-01), Naiman
patent: 5018883 (1991-05-01), Fujita
patent: 5029107 (1991-07-01), Lee
patent: 5065149 (1991-11-01), Marsh et al.
patent: 5226116 (1993-07-01), Sasaki
patent: 5327258 (1994-07-01), Ueda
Foley et al.; Computer Graphics: Principles and Practice; 2nd Edition; 1990; pp. 127-137, 568-574, 621-623.

Affiliated with

Also associated with

Rating

Method and apparatus for creating multi-gradation data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for creating multi-gradation data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for creating multi-gradation data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1999047