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4
GETTING STARTED
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8024172/V3-0/2021-01|SICK
Oper at i ng i ns t r uc t i ons | LABEL CHECKER P6XX
Subject to change without prior notice.
2.
Region filters - affects the thresholded region (highlighted pixels in the region).
Erosion – such filter erodes thresholded regions. Makes the region smaller
and can disconnect some bigger areas and clears smaller areas, e.g. salt &
pepper noise.
Before filter
Image after Thresholding without filters
On the image we can see a lot of
thresholded pixel areas, which are not
part of a letter.
Figure 56 Region filter
Image after erosion filter
When the erosion cycle was applied, we were able to filter out the letters.
Applying the erosion filter reduced the regions, decluttered the region boundaries, and
eliminated the regions which are smaller than the circular mask value.
Figure 57 Image after Erosion filter