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LC821031 - Image-Processing

Key Features

  • Number of pixels processed: 3072 pixels/line.
  • Processing speed: 250 ns/pixel, maximum (When CLKIN = 32 MHz).
  • 8-bit A/D converter (Includes a sensor signal timing adjustment function. ).
  • 6-bit D/A converter for setting the A/D converter reference potential.
  • Sensor drive circuit (Supports most CCD and CIS devices. ).
  • Digital clamp (single-point clamping and even/odd clamping).
  • Distortion correction (white correction: all-pixel correctio.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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 areas.