Contrast Threshold

Specify the threshold for how much contrast (difference between light and dark) is required in the image to identify something as a feature. Input the value or change the value using buttons. The default value is 50. If a small value is set, objects that cannot be seen clearly can be detected, but processes will take time. The minimum value is 1.

If something with low contrast, such as dust, is mistakenly detected, increase this value. Those image features whose contrast is lower than the threshold are ignored. Selecting the [Image + Edges] in [Image Display Mode] lets you check the image features extracted based on the current threshold.