Ordering number : EN*5735 CMOS LSI LC821031 Image-Processing IC for Facsimile, Copier, and OCR Products Preliminaly Overview The LC821031 converts analog video signals from CCD and contact sensors to high-quality binary image data.
It includes both an 8-bit A/D converter and a 6-bit D/A converter for setting the reference potential and creates high-quality multi-valued data using a gamma conversion technique that supports arbitrary gamma curves.
It also provides both black and white all-pixel distortion correction and multi-valued resolution conversion.
It then applies two-dimensional filtering to this multi-valued data to separate the document image into text, photograph, and halftone are...

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