CAMERA LINK VC Series, Руководство пользователя

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VC-5MC-M/C110H User's Manual
Page 68 of 109
9.9 Defective Pixel Correction
The CMOS sensor may have defect pixels which cannot properly react to the light. Correction is
required since it may deteriorate the quality of output image. Defect pixel information of CMOS
used for each camera is entered into the camera during the manufacturing process. If you want
to add defect pixel information, it is required to enter coordinate of new defect pixel into the
camera. For more information, refer to
Appendix A
.
9.9.1 Correction Method
A correction value for a defect pixel is calculated based on the valid pixel value adjacent in the
same line.
Figure 9-6 Location of Defect Pixel to be corrected
If the Current Pixel is a defect pixel as shown in the figure above, the correction value for this
pixel is obtained as shown in the following table depending on whether surrounding pixels are
defect pixels or not.
Adjacent Defect Pixel
Correction Value of Current Pixel
None
(L1 + R1) / 2
L1
R1
R1
L1
L1, R1
(L2 + R2) / 2
L1, R1, R2
L2
L2, L1, R1
R2
L2, L1, R1, R2
(L3 + R3) / 2
L2, L1, R1, R2, R3
L3
L3, L2, L1, R1, R2
R3
Table 9-13 Calculation of Defect Pixel Correction Value