Controlling image signals in an imaging apparatus

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

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358169, 358164, 358174, H04N 5235, H04N 557

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active

047991062

ABSTRACT:
Thermal imaging apparatus is provided with a comparator and a digital counter for counting the number of pixels in the scene within certain defined brightness bands. Utilizing this data, a microprocessor controls gain, level, gamma correction and integration for noise reduction.

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