maskfix: Fix bad pixel in images using a bad pixel mask
Package: xdimsum
Usage
maskfix inlist bpmasks bpvalue
Parameters
- inlist
- The list of input images in which the bad pixels are to be fixed.
- bpmasks
- The list of bad pixel masks corresponding to inlist. Bad pixel masks are assumed to be the same size as the input images and to consist entirely of 0's and 1's with bad pixel values equal to badval. The number of bad pixel masks must be 1 or equal to the number of input images.
- badval
- The input mask bad pixel value which must be 0 or 1.
- forcefix = no
- If forcefix = yes then all bad pixels in inlist are replaced. If forcefix = no and the input images contain the keyword "MASKFIX" then maskfix assumes that the bad pixels have already been fixed and no further pixel editing is done.
Description
MASKFIX replaces bad pixels in inlist by linearly interpolating across bad columns within each image line. The bad pixels are assumed to be those pixels in the bad pixel masks bpmasks which have a value of badval.
MASKFIX writes the keyword "MASKFIX" to the input image header when it completes replacing the bad pixels. If forcefix = no and the keyword "MASKFIX" already exists in the input image header then no further image editing is done. If forcefix = yes bad pixel replacement is performed regardless of the presence or absence of "MASKFIX".
Examples
1. Replace bad pixels in an image.
cl> maskfix demo01.sub.imh demo.pl 0
1. Replace bad pixels in a list of images using a single bad pixel mask.
cl> maskfix @sslist demo.pl 0