Masked combinations of video slices for computer display

Details Masked combinations of video slices for computer display Masked combinations of video slices for computer display

1990-02-08

1992-07-28

Razavi, Michael

Image analysis

Histogram processing

For setting a threshold

358455, 358465, G06K 938

Patent

active

051346680

ABSTRACT:
A method and system of image processing which utilizes masked video slices to show grey scale images on a bilevel output device. A plurality of video slices of an image are formed by a binary thresholding technique, with each slice displaying the image at different levels of intensity. The same number of video masks are also formed which each comprise a unique pattern of on and off pixels. Each of the video masks is ANDed with a corresponding one of the images slices to create a plurality of masked video slices. The masked video slices are combined to create a binary grey scale image of the original image that can be displayed on a bilevel output device.

REFERENCES:
patent: 3104372 (1963-09-01), Rabinow et al.
patent: 4675909 (1987-06-01), Egami et al.
patent: 4975786 (1990-12-01), Katayama et al.

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