Luminance Shading; Color Shading - Panasonic MN34120PAJ Manual

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1.4.9 Luminance shading

Measure the Gr and Gb output signal of a measurement area shown in the Figure 1.4.9 below in the
standard illuminance at the standard imaging state. Measure the average value for each block divided
active pixel area into 15 of the horizontal direction and 11 of the vertical direction. Determine the minimum
value (LSmin) of the results. The center average (LScave) is the average value of A(7,5). The luminance
shading is determined using the following formula.
Luminance shading = ( LScave - LSmin ) / LScave × 100
OB area
3590
7
32
29

1.4.10 Color shading

Measure the sensor output signal of a measurement area shown in the Figure 1.4.9 below in the standard
illuminance at the standard imaging state. Measure the color average value for each block divided active
pixel area into 15 of the horizontal direction and 11 of the vertical direction. In each block, the average value
of R pixel is Rx, the average value of Gr and Gb pixel is Gx, and the average value of B pixel is Bx. In the
center block A(7,5), the average value of R is Rc, G is Gc, and B is Bc. Determine the values of Chroma
and Hue using the following formula.
CRx = ( Rx / Rc – Gx / Gc ) × 100
CBx = ( Bx / Bc - Gx / Gc ) × 100
Chroma = max ( SQRT ( CRx * CRx + CBx * CBx ) )
Hue = SQRT ((CBmax - CBmin)*(CBmax - CBmin) + (CRmax - CRmin)*(CRmax - CRmin))
2015/10/01
Enactment Revision
Specifications
4712
76 ×15 blocks
A(0,0) A(1,0) A(2,0)
3512
A(0,1)
A(0,2)
317
：
A(0,9)
A(0,10)
Figure 1.4.9 Measurement area of luminance shading
88
A(13,0) A(14,0)
・・・
：
・・・
A(13,10) A(14,10)
4620 15
Generalplus Technology Inc.
Panasonic Semiconductor Solutions Co., Ltd.
MN34120PAJ
Total Page
Page
25
96
Measurement area
3487
24