volume_hist
create histograms of intensity values in a MINC volume
volume_hist [options] <infile> <outfile>
DESCRIPTION
volume_hist computes intensity histograms of a MINC volume and writes the result to a file. The histogram can be output in text or matlab format. A mask volume can be used to restrict the computation to a region of interest. This tool is used in the N3 non-uniformity correction pipeline to generate the histogram that is subsequently sharpened by sharpen_hist.
OPTIONS
-clobber- Overwrite an existing output file.
-noclobber- Do not overwrite an existing output file (default).
-verbose- Print progress information.
-quiet- Do not print progress information.
-bins <n>- Set the number of histogram bins (default: 200).
-mask <mask.mnc>- Specify a mask volume to restrict the histogram computation.
-classes <n>- Limit the number of histograms (classes) to compute.
-select <class>- Only compute the histogram for the selected class.
-auto_range- Automatically determine the intensity range from the data.
-window- Use a triangular Parzen window for histogram smoothing.
-text- Output in text format (default).
-matlab- Output in matlab format.
EXAMPLES
volume_hist input.mnc histogram.txt
volume_hist -bins 500 -mask brain_mask.mnc input.mnc histogram.txt
volume_hist -matlab input.mnc histogram.mat
AUTHOR
John G. Sled - McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University.
COPYRIGHTS
Copyright © 1998 by John G. Sled