AIPS HELP file for STACK in 31DEC21
As of Sat Oct 23 21:59:51 2021
STACK: Task to co-add a set of 2-D images with weighting
INNAME Input name(name).
INCLASS Input name(class).
INSEQ 0.0 9999.0 Input name(seq. #). 0=>high
INDISK Input disk drive #. 0=>any
IN2SEQ 0.0 Upper limit sequence number
OUTNAME Output name(name).
OUTCLASS Output name(class).
OUTSEQ -1.0 9999.0 Output name(seq. #).
0 => highest unique
OUTDISK Output image disk drive #
0 => highest with room
BLC 0.0 4096.0 Bottom left corner of image
TRC 0.0 4096.0 Top right corner of image
OPCODE ' ' average INSEQ-IN2SEQ
'MEDI' median INSEQ-IN2SEQ
'CUBE' average BLC(3)-TRC(3)
'MEDC' median BLC(3)-TRC(3)
INFILE Text file with weights
Use: STACK will do a weighted average of two-dimensional images,
either from a sequence of image files having the same name and
class and sequence numbers from INSEQ through IN2SEQ or from the
planes of a cube from BLC(3) through TRC(3). The weights may be
read in from a text file, taken from the ACTNOISE keyword in
each file, or found by robust rms means on a per-plane basis.
Not all images in the sequence INSEQ through IN2SEQ need be
present and magic blanked pixels are ignored. The old task
SUMIM requires all images in the sequence to be present, does no
weighting, and blanks any pixel for which one of the input
pixels was blank.
INNAME......Input name of image(name). Standard defaults.
INCLASS.....Input name of image(class). Standard defaults.
INSEQ.......Input name of image(seq. #). 0 => highest.
INDISK......Disk drive # of image. 0 => any.
IN2SEQ......Upper limit for the liip over image sequence number.
OUTNAME.....Output name of image(name). Standard defaults.
OUTCLASS....Output name of image(class). Standard defaults.
OUTSEQ......Output name of image(seq. #). 0 => highest unique
OUTDISK.....Disk drive # of Output image. 0 => highest with
BLC.........The bottom left-hand pixel of the input image
which becomes the bottom left corner of the
subimage. The value (0,0) means (1,1).
TRC.........The top right-hand pixel of the input image
which becomes the top right corner of the
subimage. The value (0,0) means take the top
right hand corner of the image. The same BLC and TRC
are applied to each input image and TRC(3) is forced to
BLC(3) except in CUBE mode.
OPCODE......' ' = do weighted sum of images INSEQ-IN2SEQ
'CUBE' = do weighted sum of planes BLC(3)-TRC(3)
INFILE......If not blank, weights are read from this text file.
Each row of the file has one weight in free format and
must contain lines for all sequence numbers from INSEQ
through IN2SEQ or all planes from BLC(3) through TRC(3)
even if some images are missing or planes all blanked.