# APNORMALIZE

input,s,a,,,,List of images to normalize
output,s,a,,,,List of output normalized images
apertures,s,h,"",,,Apertures
references,s,h,"",,,"List of reference images
"
interactive,b,h,yes,,,Run task interactively?
find,b,h,yes,,,Find apertures?
recenter,b,h,yes,,,Recenter apertures?
resize,b,h,yes,,,Resize apertures?
edit,b,h,yes,,,Edit apertures?
trace,b,h,yes,,,Trace apertures?
fittrace,b,h,yes,,,Fit traced points interactively?
normalize,b,h,yes,,,Normalize spectra?
fitspec,b,h,yes,,,"Fit normalization spectra interactively?
"
line,i,h,INDEF,1,,Dispersion line
nsum,i,h,10,,,Number of dispersion lines to sum or median
cennorm,b,h,no,,,Normalize to the aperture center?
threshold,r,h,10.,,,"Threshold for normalization spectra
"
background,s,h,"none","none|average|median|minimum|fit",,Background to subtract
weights,s,h,"none","none|variance",,Extraction weights (none|variance)
pfit,s,h,"fit1d","fit1d|fit2d",,Profile fitting type (fit1d|fit2d)
clean,b,h,no,,,Detect and replace bad pixels?
skybox,i,h,1,1,,Box car smoothing length for sky
saturation,r,h,INDEF,,,Saturation level
readnoise,s,h,"0.",,,Read out noise sigma (photons)
gain,s,h,"1.",,,Photon gain (photons/data number)
lsigma,r,h,4.,0.,,Lower rejection threshold
usigma,r,h,4.,0.,,"Upper rejection threshold
"
function,s,h,"legendre","chebyshev|legendre|spline1|spline3",,Fitting function for normalization spectra
order,i,h,1,1,,Fitting function order
sample,s,h,"*",,,Sample regions
naverage,i,h,1,,,Average or median
niterate,i,h,0,0,,Number of rejection iterations
low_reject,r,h,3.,0.,,Lower rejection sigma
high_reject,r,h,3.,0.,,High upper rejection sigma
grow,r,h,0.,0.,,Rejection growing radius