Advantech VisionNavi, Руководство пользователя

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21 VisionNavi User Manual
Chapter 2
Tool
Phototmetric capture
Perform photometric imaging to acquire images.
In photometric imaging, four images taken by sequentially irradiating from 4 direc-
tions using 4 division illumination are synthesized. It is possible to generate images
that emphasize edges due to irregularities and images from which halation has been
removed.
Processing condition
[Capture]
Camera Capture ··Capture with connected camera
Pick image files ·········Retrieve the saved image file. When acquiring a file, you can
only handle [original image] of 'tiff' format output by this tool.
[Exposure time]
Set the camera exposure time.
[Trigger]
Set the trigger condition of the camera.
OFF ·············Software trigger
TRIG············Assign to any control input (DI).
[Filter size]
Change the filter size according to the size of the unevenness you want to extract.
[Light angle]
If the 0 ° direction of the image and the 0 ° direction of the illumination are out of
alignment, adjust to compensate for the deviation.
[Dark correction]
If the noise in the dark area is conspicuous, it can be corrected.
[Output image]
As an output of this tool, you can select the following output format.
 Rugged image

Surface image
 Image without halation

CH1~4
 ALL

Original image
Note! The photometric capture function is an optional function. Please contact
the distributor for details.
Note! To save the original image in the [Image Save Tool] file, select either 'tiff'
or 'hobj' format.