By default, a null (!) value is used for WLIM, which causes the pattern of bad pixels to be propagated from the input image to the output image unchanged. In this case, smoothed output values are only calculated for those pixels which are not bad in the input image.
If a numerical value is given for WLIM, then it specifies the minimum total weight associated with the good pixels in the smoothing box required to generate a good output pixel (weights for each pixel are defined by the normalised PSF). If this specified minimum weight is not present, then a bad output pixel will result, otherwise a smoothed output value will be calculated. The value of this parameter should lie between 0.0 and 1.0. A value of 0.0 will result in a good output pixel being created even if only one good input pixel contributes to it. A value of 1.0 will result in a good output pixel being created only if all the input pixels which contribute to it are good. See also Parameter NORM. [!]
KAPPA --- Kernel Application Package