Circuit arrangement for automatic backlighting glare correction for image recording devices

Circuit arrangement for automatic backlighting glare correction for image recording devices

In image recording devices, preferably video cameras, glare correction is formed by a built-in highlight blanking which, in the event of a high degree of backlighting, assigns a defined grey-scale value to the bright image component and, in the event of the brightness being increased, likewise incre...

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1. Verfasser: HORVATH JOHANNES
Format: Patent
Sprache:eng ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator HORVATH JOHANNES
description In image recording devices, preferably video cameras, glare correction is formed by a built-in highlight blanking which, in the event of a high degree of backlighting, assigns a defined grey-scale value to the bright image component and, in the event of the brightness being increased, likewise increases the said assigned grey-scale value. In the event of an extreme brightness being reached, this leads to unidentifiable and hence unusable monitor images. It is an aim of the invention, above a defined grey-scale value, to use an automatic backlighting glare correction to influence the glare control in such a way that an unambiguously identifiable monitor image is supplied even in the event of extreme glare.
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In the event of an extreme brightness being reached, this leads to unidentifiable and hence unusable monitor images. 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In the event of an extreme brightness being reached, this leads to unidentifiable and hence unusable monitor images. It is an aim of the invention, above a defined grey-scale value, to use an automatic backlighting glare correction to influence the glare control in such a way that an unambiguously identifiable monitor image is supplied even in the event of extreme glare.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record>
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title Circuit arrangement for automatic backlighting glare correction for image recording devices
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