images,s,a,"",,,List of CCD images to correct ccdtype,s,h,"object",,,CCD image type to correct max_cache,i,h,0,0,,Maximum image caching memory (in Mbytes) noproc,b,h,no,,,"List processing steps only? " fixpix,b,h,yes,,,Fix bad CCD lines and columns? overscan,b,h,yes,,,Apply overscan strip correction? trim,b,h,yes,,,Trim the image? zerocor,b,h,yes,,,Apply zero level correction? darkcor,b,h,yes,,,Apply dark count correction? flatcor,b,h,yes,,,Apply flat field correction? illumcor,b,h,no,,,Apply illumination correction? fringecor,b,h,no,,,Apply fringe correction? readcor,b,h,no,,,Convert zero level image to readout correction? scancor,b,h,no,,,"Convert flat field image to scan correction? " readaxis,s,h,"line","column|line",, Read out axis (column|line) fixfile,s,h,"",,,File describing the bad lines and columns biassec,s,h,"",,,Overscan strip image section trimsec,s,h,"",,,Trim data section zero,s,h,"",,,Zero level calibration image dark,s,h,"",,,Dark count calibration image flat,s,h,"",,,Flat field images illum,s,h,"",,,Illumination correction images fringe,s,h,"",,,Fringe correction images minreplace,r,h,1.,,,Minimum flat field value scantype,s,h,"shortscan","shortscan|longscan",,Scan type (shortscan|longscan) nscan,i,h,1,1,,"Number of short scan lines " interactive,b,h,no,,,Fit overscan interactively? function,s,h,"legendre",,,Fitting function order,i,h,1,1,,Number of polynomial terms or spline pieces sample,s,h,"*",,,Sample points to fit naverage,i,h,1,,,Number of sample points to combine niterate,i,h,1,0,,Number of rejection iterations low_reject,r,h,3.,0.,,Low sigma rejection factor high_reject,r,h,3.,0.,,High sigma rejection factor grow,r,h,0.,0.,,Rejection growing radius