SAA8112HL 데이터 시트보기 (PDF) - Philips Electronics

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SAA8112HL

Digital camera signal processor and microcontroller

Philips Electronics 

Philips Semiconductors

Digital camera signal processor and

microcontroller

Product specification

SAA8112HL

8.3 Colour extractor

The SAA8112HL colour extractor (denoted as RGB

SEPARATION in Fig.1) can be programmed to work with

both mosaic (yellow, magenta, green and cyan) and RGB

Bayer colour sensors.

With mosaic sensors, a combination (either sum or

subtraction) of consecutive pixels is used to extract a Y,

(2R-G) and (2B-G) triplet for all pixels.

With RGB Bayer sensors, an RGB triplet is interpolated for

every pixel on a 3 × 3 neighbourhood matrix.

With B and W sensors, the colour extractor can be

disabled, thus maintaining the full sensor resolution.

Edges and video level information (white clip) are

extracted at this stage (see Fig.3).

handbook, full pagewidth

CCD inputs

LINE

MEMORY

LINE

MEMORY

10

RGB

COLOUR

SEPARATION

FCE340

R

G

B

White clip

Edges

Fig.3 RGB separation diagram.

2000 Jan 18

11

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