3.1.1 Supported Domains
Pixel Level; Image Object Level: Current Image Object; Neighbor Image Object; Super
Object; Sub Objects; Linked Objects; Image Object List
3.1.2 Algorithm Parameters
Object Size
Object Size defines the size of the square grid in pixels. Variables are rounded to the
nearest integer
Level Name
In the Level Name field, enter the name of a new image object level. This parameter is
only available, if the domain Pixel Level is selected in the process dialog.
Overwrite Existing Level
This parameter is only available when Pixel Level is selected. It allows you to automati-
cally delete an existing image level above the pixel level and replace it with a new level
created by the segmentation.
Thematic Layer Usage
In the Thematic Layers field, specify the thematic layers to be considered in addition
to segmentation. Each thematic layer used for segmentation will cause further splitting
of image objects while enabling consistent access to its thematic information. You can
segment an image using more than one thematic layer. The results are image objects rep-
resenting proper intersections between the thematic layers. If you want to produce image
objects based exclusively on thematic layer information, you can select a chessboard size
larger than your image size.