Bayer Color Interpolation (Only For Ab-200Ge); Test Image Selector - IAI AM-200GE User Manual

Color shading correction( For AB-200GE only):
In this case, R channel and B channel are adjusted to match with G channel
characteristics. The block for compensation is 128pixels(H) x 128 pixels(V) and the
complementary process is applied to produce the compensation data with less error.
Before adjustment

11.11. Bayer color interpolation (Only for AB-200GE)

This function is available only for AB-800CL. The AB-800CL uses a CCD with an RGB
Bayer pattern. If the Bayer color interpolation is not used, the following RAW data
can be output.
Gｒ
Gｒ
The RAW data contains only luminance information for each color and outputs as a
monochrome signal. The Bayer color interpolation can complement lacking color
information on each pixel and output RGB color data as the result. Color
interpolation compensates for the lack of color information by using information
from adjacent pixels. The following is the concept drawing for the color
interpolation process.
B1
Gｒ1
B3

11.12. Test Image selector

One of the following signals can be output through GigE interface.
AM-200GE / AB-200GE
Fig.60 Color shading correction concept drawing
B Gb B Gb
R Gｒ R
B Gb B Gb
R Gｒ R
Fig. 61 Bayer pattern
Gb1 B2
R Gｒ2
Gb2 B4
Fig. 62 Color interpolation concept drawing
After adjustment
B Gb B
Gｒ R Gｒ
B Gb B
Gｒ R Gｒ
Gb1 B1 Gb2
R1 Gｒ R2
Gｒ
Gb3 B2 Gb4
- 79 -
Gb B Gb
R Gｒ R
Gb B Gb
R Gｒ R
R1 Gｒ1 R2
Gb1 B Gb2
R3 Gｒ2 R4