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Users of preset extraction items in the system can modify them through the corresponding
item fields under them.
Color extraction sets the threshold values of hue, brightness and saturation of pixels in the
image interval, extracts pixels that meet the threshold values of these three channels at the same
time, and displays them visually in the extraction map. It takes the ratio of extracted pixels to
pixels in the whole interval as the main inspection target, and sets the standard for the normal
range around this target.
When setting, besides the color selected by the user in the extraction diagram, the result
value will also be displayed. If the calibration is reliable, the system will estimate and display the
actual region of the extraction region here at the same time.
During inspection, it is judged whether the pixel extraction value of the image in the
inspection frame of the image to be inspected according to the extraction parameters can meet
this color standard interval, so as to determine whether it passes or is NG. [Reverse Extraction]
in the interface is to reverse the result.
To simplify the extraction of color parameters, double-click the left mouse button on the
original image at the top right of the interface, and the system will automatically extract the color
channel value of the mouse point and automatically preset the segmentation threshold. The
extracted image at the bottom will be displayed correspondingly, and the array and scroll bar at
the left will be automatically preset accordingly, so users can adjust and save on this basis.
In addition to the above basic conditions, on the basis of the results of color channel
threshold extraction, the system can also set some additional conditions to filter again according
to the extracted regions, so that users can realize more flexible application when dealing with the
extraction range:
-In the case of multiple extraction regions, the user can filter out the large and small regions
by setting the region ratio.
-In the case of multiple extraction regions, the user can set the standard number of regions.
If the number of qualified regions is not equal to the standard, the inspection frame is judged as
NG. The default standard of the system is -1, which means the number of uninspected regions.
This function is more suitable for inspecting short circuit between solder joints.
If the user checks to filter out the shielding region, the intersection of this inspection frame
and another set shielding frame will not participate in the extraction calculation, and this
shielding will be reflected in the image display region. As a result, the extraction operation can
be more precise and flexible.
The "Registered Image" and "Image to be Inspected" in the setting interface are used to
switch between the registered image and the real-time image to be inspected, which helps users
to compare and debug. The parameter setting and adjustment is a set, but there are different
display results corresponding to the two figures.
Usually, grouping is not implemented in the color extraction mode, otherwise it is easy to be
confused.
After setting or adjusting the registration information parameters, the user needs to press the
“Apply” button to save. If the component is checked in, the result will be stored in the check-in
document; otherwise, it will be stored in the registration information of the component itself. If
there are multiple groups in the inspection frame, the user can choose to update all groups with