Endoscope photometric apparatus

Details Endoscope photometric apparatus Endoscope photometric apparatus

1990-02-01

1991-11-26

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358220, 128 4, 128 6, H04N 718

Patent

active

050687190

ABSTRACT:
An endoscope photometric apparatus includes a photometric apparatus for detecting the brightness of an image based on an image signal from an endoscope imaging apparatus. An extracting apparatus extracts, from the image signal from the imaging apparatus, a bright part in which the brightness level from the peripheral of the image is above a predetermined value and the spatial size of the bright part is below a predetermined value. A limiting device limits the input image signal into the photometric apparatus of the part, corresponding to the bright part, in the image signal by using the output of the extracting apparatus in order to reduce the influence of the bright part on the brightness of the entire image.

REFERENCES:
patent: 4407272 (1983-10-01), Yamaguchi
patent: 4561429 (1985-12-01), Sato
patent: 4667225 (1987-05-01), Kanda
patent: 4780762 (1988-10-01), Nagasaki
patent: 4834070 (1989-05-01), Saitou
patent: 4866516 (1989-09-01), Hibino
patent: 4872029 (1989-10-01), Kato
patent: 4873572 (1989-10-01), Miyazaki
patent: 4901142 (1990-02-01), Ikuno

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