H1A424M167 Datasheet, PDF (39/47 Pages) Hynix Semiconductor – Image Signal Processor for Hyundai CMOS Image Sensor

Hyundai Electronics Industries Co., Ltd.
H1A424M167
Increasing this value move knee point toward 0. Decreasing this value move
knee point toward 255. Valid when knee function is enabled.
[ 0 ] Knee Function Enable.
[R/W]
0 : Disable
1: Enable.
Fixed Contrast Stretching Factor Register[C4h]
[00h]
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
This register is used for manual contrast stretching function. Program value should be
multiplied stretching Factor by 32(decimal) for the Reducing Rounding Error.
Stretching Factor can be 0 ~ 8.
8.4.3. Gamma Control Register[E0h~F1h]
Gamma Start0 ~ Start8 Register[E0h~E8h]
Gamma Slope0 ~ Slope8 Register[E9h~F1h]
Piecewise linear gamma approximation method is implemented. Nine piece linear
segments are supported and user-programmable.
Gamma Slope Register[E8h] value has effect scaled by 1/8
Gamma Slope Registers[E9h-F1h] value has effect scaled by 1/16
Gamma Start 0 Register[E0h]
[20h]
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
Gamma Start 1 Register[E1h]
[2Dh]
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
Gamma Start 2 Register[E2h]
[37h]
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
Gamma Start 3 Register[E3h]
[47h]
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
Gamma Start 4 Register[E4h]
[5Fh]
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
1999 October 11
Page 39