FS M - Find Statistics - within Mask

PURPOSE

To compute and print out the values of some statistical parameters (i.e. minimum, maximum, average, and standard deviation) of an image/volume within an area defined by a mask.

SEE ALSO

FS	[Find Statistics]
MM	[Mask Multiplication]

USAGE

.OPERATION: FS M

  <or>
FS M [max],[min],[img-avg],[img-std]

[This operation takes up to 4 optional register variables. On completion of the operation:
First variable receives: maximum density in file.
Second variable receives: minimum density.
Third variable receives: average density.
Fourth variable receives: standard deviation.]

.INPUT FILE: PIC001
[Enter name of file to be analyzed.]

.MASK FILE: MSK003
[Enter name of file containing mask.]

NOTES

1. The values of maximum and minimum density, average, and standard deviation are computed for those pixels only where the mask has values larger than 0.5.

2. Mask file has to have exactly the same dimensions as input file.

SUBROUTINES

NORMM

CALLER

UTIL1