ALLIED Vision Technologies Pike F-1600 - Manual (Page 156)

Description of the data path
PIKE Technical Manual V5.1.2
156
After the lens has been focused again the image below will be seen, but now
with a considerably more uniform gradient.
Note

Configuration and storing non-volatile
To configure this feature in an advanced register: See Table
161: Advanced register: Shading on page 341.
To store shading image data into non-volatile memory: See
Chapter
Non-volatile memory operations on page 342.
Note

• The SHDG_CTRL register should not be queried at very
short intervals. This is because each query delays the
generation of the shading image. An optimal interval
time is 500 ms.
Note

• The calculation of shading data is always carried out at
the current resolution setting. If the AOI is later larger
than the window in which correction data was calculated,
none of the pixels lying outside are corrected.
• For Format_7 mode, it is advisable to generate the shad-
ing image in the largest displayable frame format. This
ensures that any smaller AOIs are completely covered by
the shading correction.
• The automatic generation of shading data can also be
enabled when image capture is already running. The cam-
era then pauses the running image capture for the time
needed for generation and resumes after generation is
completed.
• Shading correction can be combined with the image mir-
ror and gamma functionality.
• Changing binning modes involves the generation of new
shading reference images due to a change in the image
size.