next up previous
Next: ``Gray-scale inversion'' -- Up: Manipulation Previous: ``two-volume ops'' --

``threshold'' -- intensity thresholding

purpose:
Threshold a volume using a user-preset threshold. All voxels > than the threshold are set to 1; all other voxels are set to 0.
input:
An 8-bit volume.
output:
A thresholded version of the input 8-bit volume.
parameters:
Default parameters menu is
threshold = 0
* input from vol # = 0
* copy output to vol # = 0
*
comments:

  1. A very fast function.



Updated: Fri May 19 14:39:07 CDT




Copyright 1994-99 Division of Physiologic Imaging, Dept. of Radiology, Univ. of Iowa


VIDA Directory | DPI Homepage | Contact Us | Search