TILLvisION Tutorial

TILLvisION - Morphology

Morphological operations are primarily useful with binary images. You can use them to enlarge or shrink binary objects before an Object Analysis. The core operations of Morphology, Erosion and Dilation, are described below.

	Grayscale Our example is part of a fluorescence image of HELA cells. To emphasize the effect of edge detection filters, the background of the image is empty (=0).

	Pseudo Color Display Usually you would display your images in pseudo color to improve visualization. Here we use TILLvisION's "Rainbow 2" palette, but the color corresponding zero is changed to gray (from black).
Morphology
	Erosion Erosion eliminates pixels with weak (or no) connections to its neighboring pixels. As a result, the objects shrink or disappear. The strength of this operation is determined by the Structuring Element.
	Dilation Dilation is the inverse process of Erosion. If a pixel in a binary image is not set, but has enough set neighbors, the corresponding pixel in the destination image will be set.