TV SIGNAL SHADING CORRECTOR FOR INPUT TO DIGITAL IMAGE PROCESSOR.

Mitsuru Ishizuka, Kuniharu Tsuboi, Morio Onoe

Research output: Contribution to journalArticle

Abstract

A TV digitizer with shading correction function controlled by a microprocessor is presented. In the measurement mode, the processor automatically measures the degree of shading and provides a correction table in the RAM area. The gain of a video amplifier is controlled by data read out from the table in the Direct Memory Access (DMA) mode. In the run mode, digitized data as well as the analog signal for monitoring after shading correction are simultaneously obtained.

Original languageEnglish
Pages (from-to)413-417
Number of pages5
JournalTerebijon Gakkaishi/Journal of the Institute of Television Engineers of Japan
Volume35
Issue number5
Publication statusPublished - 1981 May
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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