IEXCLUDE

Excludes specified pixels from display and processing by setting the IGNORE quality bit for those pixels. There are five modes:

PIXel

Exclude individual pixels pointed to by the cursor - space-bar or left button selects for exclusion, <RETURN> or centre button terminates

SOUrce

Excludes pixels up to a specified radius from sources specified by RA/DEC, which can be given as a text file, an ASTERIX source list or separate RA and DEC arrays

CIRcle

Excludes pixels inside a specified circle

POLygon

Excludes pixels within a polygon whose vertices are specified with the cursor - space-bar or left button selects position of vertex, <RETURN> or centre button indicates last vertex and terminates - the first and last vertices are automatically joined

REGion

Excludes pixels in a region previously defined by IREGION or by a specified ARDfile

The masked QUALITY array can be viewed with IQPIXEL.

The effect of IEXCLUDE can be toggled on and off by the use of IMASK, (set the most significant bit to 0 to switch off).

• Parameters
• Examples