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FS M - Find Statistics - within Mask

(1/10/94)

PURPOSE

To compute and print out the values of the statistical parameters of an image within an area defined by a mask.

SEE ALSO

FS [Find statistics - whole image]

USAGE

.OPERATION: FS M,XM,XN,XO,XP
[XM, XN, XO, and XP are optional register parameters, such that 10 <= M,N,O,P <= 99. On completion of the operation, XM contains the picture minimum, XN its maximum, XO its average, and XP its standard deviation. If register are not provided the values are placed in the following registers: X3, X4, X5, X6.]

.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. Picture can be 2D as well as 3D. Mask file has to have exactly the same dimensions as input file.

SUBROUTINES

NORMM

CALLER

UTIL1

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