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Defect pixel correction (only guppy pro f-503b/c), Defect pixel correction, Only guppy pro f-503b/c) – ALLIED Vision Technologies Guppy PRO F-503 User Manual

Page 114

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Description of the data path

Guppy PRO Technical Manual V4.0.0

112

Defect pixel correction

(only Guppy PRO F-503B/C)

The mechanisms of defect pixel correction are explained in the following
drawings. All examples are done in Format_7 Mode_0 (full resolution).

The first two examples are explained for b/w cameras, the third and fourth
example are explained for color cameras.

The X marks a defect pixel.

Figure 45: Mechanisms of defect pixel correction

1. example

X

X

X

b/w

2. example

X

X

X

X

X

X

b/w

3. example

R

G

R X

G

R

G

R X

G

R

G

R

G

R

G X

color

G

B

G

B

G

B

G

B

G

B

G

B

G

B

4. example

R

G

R X

G X

R

G

R X

GX

R

G

R

G

RX

G X

color

G

B

G

B

G

B

G

B

G

B

G

B

G

B

50% brightness
of pixel value

50% brightness
of pixel value

50% brightness
of pixel value

50% brightness
of pixel value

50% brightness
of pixel value

50% brightness
of corrected value

50% brightness
of pixel value

50% brightness
of pixel value

100% brightness
of pixel value

100% brightness
of pixel value

Defect pixel at
beginning/end of row

100% brightness
of pixel value

100% brightness
of pixel value

100% brightness
of pixel value

100% brightness
of pixel value

50% brightness
of pixel value

50% brightness
of pixel value

50% brightness
of pixel value

50% brightness
of pixel value

100% brightness
of pixel value

100% brightness
of pixel value