input,s,a,,,,Images to be fit
output,s,a,,,,Output images
bpm,s,h,"",,,Bad pixel mask(s)
axis,i,h,1,1,2,Axis to be fit
type,s,a,,,,"Type of output (fit, difference, ratio)"
interactive,b,h,yes,,,Set fitting parameters interactively?
sample,s,h,"*",,,Sample points to use in fit
naverage,i,h,1,,,Number of points in sample averaging
function,s,h,"spline3","spline3|legendre|chebyshev|spline1",,Fitting function
order,i,h,1,1,,Order of fitting function
low_reject,r,h,0.,0.,,Low rejection in sigma of fit
high_reject,r,h,0.,0.,,High rejection in sigma of fit
niterate,i,h,1,0,,Number of rejection iterations
grow,r,h,0.,0.,,Rejection growing radius in pixels
graphics,s,h,"stdgraph",,,Graphics output device
cursor,*gcur,h,"",,,Graphics cursor input