ecatthrs 1.3.4 © 2002-2013 by Turku PET Centre
Threshold for PET image files in ECAT or Analyze format.
Program calculates an integral image/scan over time frames of a dynamic
image or scan file, finds the maximal integral value of all planes, and
cuts off (sets to zero) the pixels in dynamic image/scan which have lower
or higher integral than the specified threshold %.
Usage:
ecatthrs [Options] <img file> <lower threshold %> <upper threshold %>
<thresholded img file> [mask file]
Options:
-N=<nr of frames>
Nr of frames from the end that are included in thresholding;
by default, all frames are included
-h or --help
Print this message and exit.
--version or --build
Print software build information and exit.
--silent
Program works silently, printing only error and warning messages.
--verbose
Program prints more information about what it is doing.
Example: threshold the background and cerebrospinal fluid:
ecatthrs b123dy1.v 30 100 b123thres.v
Optional cutoff mask file will contain pixel values 1 (between threshold
values), and 0 (under lower or over upper threshold).
See also:
eflexseg,
imgdysmo,
imgslim,
esplit,
img2dft,
ecat2tif,
ecatcalc
Keywords: image, threshold, mask
This program comes with ABSOLUTELY NO WARRANTY. This is free software, and
you are welcome to redistribute it under GNU General Public License.
