imval – Get the data value(s) and/or mask value in an image. – analysis, information task
Description
Parameters
Parameter |
Default |
Description |
|---|---|---|
imagename |
|
|
region |
|
|
box |
|
|
chans |
|
|
stokes |
|
|
blc |
|
|
trc |
|
|
axes |
|
|
unit |
|
|
data |
|
|
mask |
|
Parameter Explanations
imagename
''
Name of the input image
region
''
Region selection. See “help par.region” for details. Default is to use the full image.
box
''
Rectangular region(s) to select in direction plane. See “help par.box” for details. Default is to use the entire direction plane.
chans
''
Channels to use. See “help par.chans” for details. Default is to use all channels.
stokes
''
Stokes planes to use. See “help par.stokes” for details. Planes specified must be contiguous. Default is to use all Stokes planes.
blc
[ ]
Bottom-left corner of the bounding box that encloses the region being examined..
trc
[ ]
top-right corner of the bounding box that encloses the region being examined.
axes
[ ]
A listing of the axis index numbers and the data stored along that axis.
unit
[ ]
The units the data values are stored and displayed in.
data
[ ]
The mask values found at the give point(s).
mask
[ ]
The mask values found at the give point(s).