Image processing method and apparatus having a digital airbrush

Details Image processing method and apparatus having a digital airbrush Image processing method and apparatus having a digital airbrush

1980-04-28

1982-08-17

Smith, Jerry

Boots, shoes, and leggings

340709, 340744, 340793, 358283, G06F 3153, G06F 1520

Patent

active

043453139

ABSTRACT:
A digital image processing system is disclosed wherein a cathode ray tube (CRT) binary display device has visual images created under control of a computer system. The visual images are screened facsimiles of a continuous tone image represented by digital raster image signals stored in the computer system. An image of an airbrush tip is superimposed by a cursor means in the computer system over a small (0.22.times.0.22 inch) region of a visual image on the display and is moved to different locations over the visual image by a pointer device manipulated by a viewer. The pointer supplies position signals X and Y to the cursor means. When a viewer simultaneously moves the pointer and depresses either buttons A or C on the pointer, the stored raster image signals associated with the visual image under the image of the airbrush tip have their tone changed. Depression of the A button causes an increase in tone and depression of the C button, a decrease in tone. A third button on the pointer causes a change in the size of the airbrush tip when simultaneously depressed with either of the other buttons A or C.

REFERENCES:
patent: 3911419 (1975-10-01), Bates et al.
patent: 4196454 (1980-04-01), Warren
patent: 4200867 (1980-04-01), Hill
patent: 4225861 (1980-09-01), Langdon, Jr. et al.

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