SwisTrack/Components/ThresholdGray

DescriptionEdit

This step intends to separate the objects to track from the background. The background will become black, while the objects to track will appear in white. Most of the time, this step follows a preprocessing method like background subtraction.

InputEdit

SwisTrack BackgroundSubtractionGray.jpg

A grayscale image.

OutputEdit

SwisTrack Threshold.png

A binary (black and white) image.

ParametersEdit

ThresholdEdit

A threshold value (between 0 and 256). If the objects to track don't appear in the image, try to reduce the value. If parts of the background become white, the value need to be increased.

Invert thresholdEdit

Whether the threshold must be inverted or not.

Last modified on 15 April 2009, at 10:30