iraf.net

NUMBER: 561
MODULE: imstatistics, mimstat
SYSTEM: V2.14
DATE: Tue Jul 15 11:03:18 MST 2008
FROM: valdes

BUG: The user supplied upper and lower data limits may be exceeded if clipping is used. For instance, if the limits exclude all pixels the clipping with behave as if no pixels are excluded. If not all pixels are excluded and the clipping thresholds computed (number of sigma * standard deviation) exceed the limit then the clipping threshold is used. The only workaround is to not use clipping if the limit values are supplied or check first with no clipping to see if all pixels are excluded.

STATUS: Fixed for the next release.