Woolz Image Processing  Version 1.7.0
WlzScalarFeatures
Name
WlzScalarFeatures - extracts scalar features from Woolz domain objects.
Synopsis
WlzScalarFeatures [-h] [-o<out file>] [-H] [-L] [-a] [-v#] [-d#]
                  [-t<feature type>] [-f#] [<in object>]
Options
-h Help, prints usage message.
-o Output file name, default stdout.
-H Feature values will be at or above the threshold value, default.
-h Feature values will be below threshold value, not default.
-a Compute a threshold value automatically, not default.
-v Specified threshold value, default 128.
-d Minimum distance between features, default 20.
-t Type of feature, valid types are "value" and "grad", default "value".
-f Filter value for feature extraction, default 1.
Description
Extracts scalar features from Woolz domain objects. These features are separated by a minimum distance and are either maximal or minimal within a region (which approximates to the Vorinoi cell) containing the feature.
Examples
WlzScalarFeatures -t grad -d 25 -H -v 200 obj.wlz >out.num
A 2D domain object with values is read from obj.wlz and a list of 2D cooordinates is then output to the file out.num. These coordinates are positions within obj.wlz which have high image gradients and are seperated by at least 25 pixels.
File
WlzScalarFeatures.c
See Also
WlzIntro(1) WlzScalarFeatures2D(3)