RA - RAmp
(4/17/97)
PURPOSE
Fits a least-squares plane to the picture, and subtracts the plane from the picture. A wedge-shaped overall density profile can thus be removed from the picture.
SEE ALSO
RA GN
[Gaussian contrast Normalization]
USAGE
.OPERATION: RA
.INPUT FILE: H_PIC001
[Enter the name of the file that needs to be corrected.]
.OUTPUT FILE: H_IMG043
[Output file name.]
NOTES
This operation should be used for pre-processing whenever the autocorrelation function has a "rooftop" appearance.
The result of the statistical F-test of the multiple correlation coefficient is calculated.
SUBROUTINES
RAMP
,
RAMP_P
,
BETAI
,
BETACF
,
GAMMLN
CALLER
UTIL1
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