Use this filter to erode bright objects to either one single bright pixel, or to a bright line. You'll find the Ultimate Erode Bright filter in the Process > Morphological Filter menu.
Before using the filter
This filter can only be applied to binary images. Therefore, you have to first binarize the image by using the Image > Mode > Binary... command. Otherwise, in the menu for morphological filters, this command is grayed out. You can find more information on binarizing here.
Resulting images
The result of such an ultimate erosion is a binary image.
See also
Overview - Morphological Filter
Working with morphological filters
Settings for the filter
The dialog box that is opened when you use an image processing operation is made up in the same way for every operation. Click here to switch to a description of this dialog box.
Application
The reduced information can, e.g., be used to count objects.
You'll find the source image on the left and the resulting image on the right-hand side. The bright spheres are reduced to a few bright pixels by the ultimate erosion.
Exactly what happens?
When the Ultimate Erode Bright filter is applied, erosions follow one another, until one more erosion would create a black image. Bright areas are reduced to a single pixel or to a bright line.
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