Thinning

Thinning

The Thinning filter makes raster fragments thinner by a specified number of pixels in specified directions – horizontal, vertical, and diagonal. This filter has a supplementary parameter that allows thinning raster objects up to skeleton (only pixels in the middle are left).

To thin an image

1. Define the selection set to process and choose Thinning from Filters menu or press the button on Filters toolbar.

2. Specify the desired number of thinning filtration passes.
- or -
Select Thin image up to skeleton to convert all the objects to one-pixel lines.
3. Choose Apply.