Method

Select the method of background removal in a drop-down box:

[N. verw.]
Background removal is not applied.
[Stat. ]
By registering a flawless image as the master image, features identical to the master image are removed as the background from the image to be inspected. This method has the effect of removing features that appear the same in all images such as, the shape of the inspected object. The processed image will be the difference of the registered master image and the image selected in [Input Image]. Be advised that not all background features are removed, due to individual variability of objects, lens disparity, or lighting conditions.
[Dynam. ]
An image representing the background features (a pseudo-master image) is dynamically generated from the image selected in [Input Image], and is used as the master image for background removal. This method has the effect of removing minor undulation of the image when there are no abrupt changes in the grayscale level of the pixels. The processed image will be the difference of the pseudo-master image and the image selected in [Input Image].
[Schatt.]
The gradual grayscale changes in the image due to uneven lighting are removed. It is essential for inspection to have the image area evenly lit, and this method has the effect of generating an image as if the lighting is constant across the entire pixels. A master image, captured by showing a flat surface such as a sheet of paper, needs to be registered to calculate the coefficients for adjustment. If there are grayscale changes not associated with the lighting non-uniformity, this method may not work properly.