
INTRODUCTION TO LASER SCANNING MICROSCOPY
LSM 510 Functions
B 40-051 e 07/98 5-47
Segment - Automatic
The function carries out an automatic grey value segmentation by means of thresholding.
Fig. 5-25
The Automatic tab sheet of the Segment dialog window must be selected. Segmentation is especially
used to generate binary regions. These are required for the measurement.
The function calculates the two strongest local minimums in the histogram of the Input image
sequence. These values are used for the discrimination. Only one channel of a multichannel sequence
can be selected as Input. Output will always be a single channel sequence. The vertical scaling of the
histogram can be adjusted with the scroll bar at the right edge of the histogram. This setting has no
influence on the function.
The Green and Blue/Red option buttons of the parameter Colour determine whether the voxels within
(Green) or outside (Blue/Red) of the grey value interval [L, H] are displayed with the corresponding
colour.
If Green is selected, the voxels within the selected interval are highlighted in green. The rest of the
image retains its original grey values. The voxels with the grey values Low and Low+1 are displayed in
blue. The voxels with the grey values High and High-1 are displayed in red.
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