ThreshImg

DESCRIPTION

Performs a threshold of an image. The output will be set to a prespecified minimum value if the input is less than the threshold and to a prespecified maximum value if the input is greater than or equal to the threshold. Each channel is thresholded independently.

IRIS Explorer pre release 3.5

The prespecified values are 0 and 255 for byte data; 0 and 65535 for short data.

IRIS Explorer release 3.5 and later

The prespecified threshold values have changed. The threshold values are now determined directly by the images actual minimum and maximum values.

INPUTS

Port: Img In
Type: Lattice
Constraints: 1..3-D
source image

WIDGETS

Port: Threshold
Type: Dial
threshold value

OUTPUTS

Port: Img Out
Type: Lattice
Constraints: 1..3-D
thresholded image

KNOWN PROBLEMS

SEE ALSO

HistNormImg, HistEqualImg, HistScaleImg.
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© The Numerical Algorithms Group Ltd, Oxford UK. 2000