Picture image zooming with brightness enhancement of inset image

Details Picture image zooming with brightness enhancement of inset image Picture image zooming with brightness enhancement of inset image

1990-08-23

1992-04-21

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358209, H04N 545, H04N 557

Patent

active

051073340

ABSTRACT:
A picture image zoom apparatus is provided which includes an area specifying unit which designates a predetermined area of the displayed picture image for magnification. The specified area is displayed on the display unit (which displays the overall video signal from the camera circuit) in a manner so as to be distinguishable from the other areas of the picture image. The video signal is produced from the camera circuit and written in a picture image memory. As a result, the video signal is sequentially read from the image memory, and the portion of the video signal corresponding to the predetermined area of the image is displayed on the display unit in a magnified form.

REFERENCES:
patent: 4963981 (1990-10-01), Todaka et al.
patent: 4991020 (1991-02-01), Zwirn

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