imval – Get the data value(s) and/or mask value in an image. – analysis, information task

Description

Parameters

Title

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. Empty string (default) means use rules for box/chans/stokes specification.

box

''

Rectangular region(s) to select in direction plane. Empty string (default) means use the reference pixel.

chans

''

Channels to use. Default is to use all channels.

stokes

''

Stokes planes to use. 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 pixel values found at the given point(s).

mask

[ ]

The mask values found at the given point(s).