AIPS HELP file for SUMSQ in 31DEC21
As of Wed May 5 16:30:02 2021
SUMSQ: Task to sum the squared pixel values of overlapping,
INNAME First image name (name)
INCLASS First image name (class)
INSEQ 1.0 9999.0 First image name (seq. #)
IN2SEQ 1.0 999.0 Final seq # in image set
IN3SEQ 1.0 9999.0 Change of seq # between incl.
INDISK Image set disk unit #
OUTNAME Output image name (name)
OUTCLASS Output image name (class)
OUTSEQ -1.0 9999.0 Output image name (seq #)
0 => highest unique
OUTDISK Output image disk unit #
BLC 0.0 2048.0 Bottom left corner 0 => 1
TRC 0.0 2048.0 Top right corner 0 => max
FACTOR Multiplicative scale factor,
0=> 1/(# of input images)
DPARM If DPARM(1)>0 and FACTOR is
greater than or equal to 0
then SQUARE ROOT [(scale
factor)*(sum of squares)]
BADDISK Disks to avoid for scratch.
Use: SUMSQ sums the squared pixel values of a number of maps
to form its output map. SUMSQ, in combination with SUMIM
and COMB, can be used to produce the average of a set of
maps, along with the rms of the average. The set of maps
must all have the same INNAME and INCLASS and the INSEQ
must be equally spaced.
INNAME......Name of first image(name). Standard defaults.
INCLASS.....Name of first image(class). Standard defaults.
INSEQ.......Name of first image(seq. #). 0 => highest.
IN2SEQ......Final seq. # for image set. No defaults.
IN3SEQ......Change of seq # for set of images. 0 => 1.
Thus, a DO LOOP over the seq. # is formed
DO I = INSEQ, IN2SEQ, IN3SEQ
INDISK......Disk drive # of all input images. 0 => any.
OUTNAME.....Name of output image(name). Standard defaults.
OUTCLASS....Name of output image(class). Standard defaults.
OUTSEQ......Name of output image(seq. #). 0 => highest unique
OUTDISK.....Disk drive # for output image. 0 => highest with
BLC.........Bottom left corner all input images
TRC.........Top right corner all input images
FACTOR.....Factor by which to multiply each squared map before
adding. If FACTOR .EQ. 0.0 a factor of
1/(# number of maps) will be used.
DPARM(1)....If DPARM(1)>0 and FACTOR is greater than or equal
to 0, then SQUARE ROOT [(scale factor)*(sum of
squares)] is computed.
BADDISK.....Disk(s) to avoid for the scratch files.