Image data masking apparatus

Details Image data masking apparatus Image data masking apparatus

1983-03-03

1986-02-04

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358160, 358183, 382 48, 382 61, H04N 522, G06K 900

Patent

active

045690790

ABSTRACT:
The target screen of a television camera is divided into a matrix in horizontal and vertical directions to receive image data signals as divided in the matrix for subsequent processing. A memory circuit having the same number of memory elements as the divisions of the matrix, a circuit for scanning addresses of the memory elements of the memory circuit in synchronization with scanning in the television camera, a circuit for preliminarily memorizing signals, which are used to discriminate which of the image data signals are processed or not, on memory elements of the memory circuit with addresses corresponding to the image data signals respectively and a circuit for generating a control signal based on the memory data signal from the memory circuit to determine which image data signals is used or not in response to scanning of the target screen of the television camera is provided. A circuit for controlling supply of the image data signal from the television camera to the processing apparatus is also provided.

REFERENCES:
patent: 4101930 (1978-07-01), Sanders et al.
patent: 4434503 (1984-02-01), Tanaka et al.

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