LR38603 datasheet(22/26 Pages) SHARP

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LR38603

q Weighted data 3

I (or Q) data come from the following equation.

Weighted data 3 =

{(I11 + I12 + I13 + I14)/4 + (I21 + I22 + I23 + I24)/4 +

+ (I31 + I32 + I33 + I34)/4 + (I41 + I42 + I43 +

I44)/4}/4

w Weighted data 4

Weighting area can be chosen by CWPA_IQ

(address 34h).

Weighted data come from averaged data in chosen

area.

e White balance area setting

The sum of I and Q can be regulated by the

luminance level and the color level.

Setting available luminance level range :

High level :

AWB_HCL (address 2Eh) + [{K_CL (address 31h)

x H peak level + (256 – K_CL) x Exposure control

data}/256

–

REF_WBPK

(address

30h)]

K_WBCL (address 32h)

Low level :

AWB_LCL (address 2Fh) + [{K_CL (address 31h) x

H peak level + (256 – K_CL) x Exposure control

data}/256

–

REF_WBPK

(address

30h)]

K_WBCL (address 32h)

Setting target zone :

AWB_IP_L (address 36h), AWB_IM_L (address 37h)

AWB_QP_L (address 38h), AWB_QM_L (address 39h)

If white balance data are less than the data of

AWB_IW_S and AWB_QW_S (address 40h) the

target zone of auto white balance changes to the

zone by the data below.

Setting target zone :

AWB_IP_S (address 3Ah), AWB_IM_S (address 3Bh)

AWB_QP_S (address 3Ch), AWB_QM_S (address 3Dh)

Auto Color Matrix and Level

Compensation

Color matrix compensation can be done by

R – Y = R – Y±(Data1 x B – Y)

B – Y = B – Y±(Data2 x R – Y)

Color level compensation can be done by

R – Y = R – Y x Data3

B – Y = B – Y x Data4

The above data come from the following equation

along the variation of color temperature.

MODE1 : Present WBR factor < WBR1

MODE2 : WBR1 ≤ present WBR factor < WBR2

MODE3 : WBR2 ≤ present WBR factor < WBR3

MODE4 : WBR3 ≤ present WBR factor

MODE1 and MODE_MAT (address 25h) = 0

Data1 = REF_MAT_R1M (address 5Ch)

Data2 = REF_MAT_B1M (address 5Dh)

Data3 = REF_GA_R1M (address 48h)

Data4 = REF_GA_B1M (address 49h)

MODE1 and MODE_MAT = 1

Data1 = REF_MAT_R1M (address 5Ch) : B – Y < 0

REF_MAT_R1P (address 5Eh) : B – Y ≥ 0

Data2 = REF_MAT_B1M (address 5Dh) : R – Y < 0

REF_MAT_B1P (address 5Fh) : R – Y ≥ 0

Data3 = REF_GA_R1M (address 48h) : R – Y < 0

REF_GA_R1P (address 4Ah) : R – Y ≥ 0

Data4 = REF_GA_B1M (address 49h) : B – Y < 0

REF_GA_B1P (address 4Bh) : B – Y ≥ 0

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