Description
create bitwise image by thresholding image intensity.
By default, the threshold level is determined using a histogram analysis to cut out the background. Otherwise, the threshold intensity can be specified using command line options. Note that only the first study is used for thresholding.
syntax: threshold [ options ] input output
Arguments
| input |
the input image to be thresholded. |
| output |
the output binary image mask. |
Options
| -abs value |
specify threshold value as absolute intensity.
| value |
the absolute threshold to use. |
|
| -percent value |
specify threshold value as a percentage of the peak intensity in the input image.
| value |
the percentage threshold to use. |
|
| -invert |
invert output binary mask. |
| -nan |
replace all zero values with NaN. |
| -info |
display information messages. |
| -quiet |
do not display information messages or progress status. |
| -debug |
display debugging messages. |
| -help |
display this information page and exit. |
| -version |
display version information and exit. |