STV0974 datasheet(45/69 Pages) STMICROELECTRONICS

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Functional description

STV0974

45/61

Table 29: Image control [register group 2]

Name

Index

R/W

State

code

Data

type

Format

default

Description

Antivignetting

Correction

0xA200

R/W

RRRR.DDDD

0000.0110

Correction in tens of percentage

0: 0%

10: 100%,

>10: Frozen

DEFCOR control

0xA201

R/W

DXXX.XXXX

XDXX.XXXX

XXDX.XXXX

XXXD.DXXX

XXXX.XDDD

1010.0111

Bit[7]: Defect correction matrix

(default is square matrix)

Bit(6]: Defect correction enable

(correction of bad pixels)

Bit[5]: Defect scythe enable

(Smooth filtering of good pixels)

Bit[4:3]: Defect scythe rank

(default is 0, maximum value

means narrow filter)

Bit[2:0]: Defect scythe weight

(default is 7, maximum value

means minimum weight applied)

NORA control

0xA202

R/W

RRRR.RDDD

0001.0010

Nora control register.

[0]: Nora disabled

[7]: Nora max strength

Default is 2

Mirror

0xA203

R/W

S I

RRRR.RRXD

RRRR.RRDX

0000.0000

Horizontal mirror

Vertical mirror

Sharpness Gain

0xA204

R/W

00DD.DDDD

0000.1100

Sharpness gain

Sharpness

Enable

0xA205

R/W

RRRR.RRRD

1111.1101

Sharpness enable

Bit[7:2]: low peak

Bit[1:0]: reserved

JPEG Control

0xA206

R/W

RDDD.DDDD

0011.1110

Bit [7]: JPEG control

0: Automatic file size computation

1: Manual squeeze control

Bit [6:0]: Control settings

if bit[7] = 0: Requested size of final

JPEG file (in Kbyte)

if bit [7] = 1: Manual squeeze

control with quantization table

scaled by bit [6:0]/8.

Applicable range of values for bit

[6:0] is [2; 67]

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