Electronic brush generation

Details Electronic brush generation Electronic brush generation

1991-02-05

1992-09-29

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

395132, G09G 128

Patent

active

051516861

ABSTRACT:
Apparatus for creating or modifying an electronically represented image comprising a display (30); a store (11) for storing arrays of data values defining electronic brushes; an input device (5) to enable an operator to control movement of a previously defined brush on the display; and a processor (1) responsive to the input device (5) to move an electronic brush selected from the store across the displays (30) so as to create or modify an electronically represented image. The processor (1) is also adapted to generate and store a representation of the profile of an electronic brush for use subsequently to create or modify electronically an image, in which a previously defined brush is used to define an array of pixels at a first resolution having a shape corresponding to the new brush, the previously defined brush comprising an array of pixels for each of which a value is stored. The processor (1) stores a value for each pixel of the new array computed from the values of the or each pixel of the previously defined brush which passes through the new array pixel during movement of the previously defined brush.

REFERENCES:
patent: 4633416 (1986-12-01), Walker
patent: 5079721 (1992-01-01), Gershony

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