SAA8112HL Datasheet, PDF (14/40 Pages) NXP Semiconductors – Digital camera signal processor and microcontroller

Philips Semiconductors
Digital camera signal processor and
microcontroller
Product specification
SAA8112HL
8.5.2 UV PROCESSING
The chrominance processing consists of noise reduction
and colour error correction (see Fig.7). Symmetrical
processing is done on the two chrominance signals.
The noise reduction is done by an adjustable coring filter.
The edge detection and the luminance level are used to
reduce the colour errors caused by high exposure or sharp
colour transitions. It is possible to adjust the number of
pixels on which the correction is applied. With the sharp
colour transition, the colour signal is filtered. With over
exposure, the colour signal is cancelled.
The YUV processing block is terminated by three separate
gain controls on the Y, U and V signals. These gains can
be used to fine tune the Y, U and V colour balance and
also to adjust the luminance and saturation without
impacting the AE and AWB control loops.
handbook, full pagewidth
NOISE
UV
REDUCTION
FALSE COLOUR
CORRECTION
UV GAIN
CONTROL
UV
FCE344
Fig.7 UV processing.
2000 Jan 18
14