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c3-time-domain / SeeChange

A time-domain data reduction pipeline (e.g., for handling images->lightcurves) for surveys like DECam and LS4
BSD 3-Clause "New" or "Revised" License
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SWarp coaddition #184

Open guynir42 opened 8 months ago

guynir42 commented 8 months ago

Add this option on top of the ZOGY coaddition method. This method can also run alignment as part of the coaddition. Need to make sure we don't lazy-calculate the aligned images before calling this method (as that is a waste of resources).

rknop commented 1 month ago

Bumping priority on this one.

The Zogy coadd algorithm is limited in that it does inpainting to fill in images. One side effect of this is that it will only work well coadding a bunch of images that have a high degree of overlap.

Although making references from images without a high degree of overlap can cause trouble (PSF discontinuities), sometimes it's necessary. swarp can handle this.