Description:
A
Gaussian weighting function The look up table is initialised such that one can access the weight
directly given the square of the distance between the input and output pixel. The scale length is taken
to be radius at half-width-half-max The gaussian should go out to a radius of at least 3 scale lengths
(0.2%
of peak). Governed by the RADIUS argument The function is simply taken as F(x) =
exp(-X2)
where the scale size (FWHM) is at X = SQRT(loge(2))
Invocation
CALL
SCULIB_GAUSS_WTINIT (WTFN, RADIUS, RES, STATUS)
Arguments
WTFN ( RADIUS
RADIUS
RES
RES
1) =
REAL (Returned)
The weighting function generated by this routine. The index corresponds to the
square of the distance from the centre in scale units.
RADIUS = INTEGER (Given)
Size of the
weighting function in scale units.
RES = INTEGER (Given)
Number of points per scale
lenghth.
STATUS = INTEGER (Given & Returned)
Global status
Copyright
Copyright
©1995,1996,1997,1998,1999 Particle Physics and Astronomy Research Council. All Rights Reserved.