webbpsf_ext.webbpsf_ext_core.nrc_mask_trans

webbpsf_ext.webbpsf_ext_core.nrc_mask_trans(image_mask, x, y)[source]

Compute the amplitude transmission appropriate for a BLC for some given pixel spacing corresponding to the supplied Wavefront.

Based on the Krist et al. SPIE paper on NIRCam coronagraph design

NOTE : To get the actual intensity transmission, these values should be squared.