routine displays a list of all the quality names
currently defined within a supplied
(see task SETQUAL). The descriptive comments which were stored with the quality
names when they were originally defined are also displayed. An option exists for also
displaying the number of pixels which hold each quality.
showqual ndf [count]
COUNT = _LOGICAL (Read)
TRUE, then the number of pixels
in each NDF which holds each defined quality is displayed. These figures are
shown in parentheses between the quality name and associated comment. This
option adds significantly to the run time.
NDF = NDF (Read)
whose quality names are to be listed.
QNAMES( ) =
The quality names associated with each bit, starting from the
lowest significant bit. Unassigned bits have blank strings.
showqual "m51,cena" yes This example displays all the quality names currently
defined for the two NDFs m51 and cena together with the number of pixels holding