JarronL / webbpsf_ext

WebbPSF Extension Tools
MIT License
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extended image convolution discontinuities #4

Open JarronL opened 3 years ago

JarronL commented 3 years ago

There are appear to be significant positional offsets between off-axis PSFs for the NIRCam coronagraphy. This can cause unrealistic discontinuities during the extended image convolution when the PSF spacing isn't very fine.

Possible solutions:

  1. Instead of performing convolutions on a selected region for a given PSF, use RGI to interpolate a new PSF at each pixel position (or finer cluster of pixels).
  2. Expand convolution regions to overlap with other PSF masked areas, then average the overlapped regions.