badpixupdate: Update bad pixel mask to include bad pixels detected by xzap
Package: xdimsum
Usage
badpixupdate inlist nrepeats bpmask
Parameters
- inlist
- The list of input bad pixel masks normally produced by the cosmic ray correction tasks xzap or xnzap. The masks in inlist are assumed to consist entirely of 1's and 0's with the candidate bad pixels set to 1.
- nrepeats
- If the same pixel is bad in nrepeats or more candidate bad pixel masks then it is set to 0 in bpmask.
- bpmask
- The name of the bad pixel mask to be updated. Bpmask is assumed to consist entirely of 1's and 0's with bad pixels set to 0.0. Note that the pixels in bpmask are defined in the opposite sense to those in inlist.
Description
BADPIXUPDATE sums the candidate bad pixel masks in inlist, detects which pixels are bad nrepeats or more images, sets those pixels to be bad in bpmask. The input candidate bad pixel masks are normally the output of the cosmic ray detection tasks XZAP or XNZAP and are assumed to consist entirely of 1's and 0's with 1 defined to be bad. The output bad pixel mask is usually the bad pixel mask common to all the input images and is assumed to consist entirely of 1's and 0's with 0 defining a bad pixel.
Examples
1. Search a list of cosmic ray masks computed by xnzap, detect pixel with more than 3 "cosmic ray" hits and set those pixel to be bad in the bad pixel mask demo.pl.
cl> type crmlist
demo01.sub.crm.pl
demo02.sub.crm.pl
demo25.sub.crm.pl
cl> badpixupdate @crmlist 3 demo.pl
Time requirements
Bugs
See also
xzap,xnzap