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Patch to lower sky glint sigma#868

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pgbrodrick merged 1 commit into
isofit:devfrom
evan-greenbrg:glint/sky_sigma
Feb 18, 2026
Merged

Patch to lower sky glint sigma#868
pgbrodrick merged 1 commit into
isofit:devfrom
evan-greenbrg:glint/sky_sigma

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@evan-greenbrg

@evan-greenbrg evan-greenbrg commented Feb 14, 2026

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Lowering the sky glint variance in the surface prior improves solutions for certain water surfaces. Seen in cases with dark water, inland water, and foamy/whitecap water, the analytical solutions for sky glint blow up, and drive reflectance negative in the blue.

See "foamy" pixels in top right
image

With this patch fix:
image

TODO:
The non-rfl surface state-vector priors are set correctly in the config. We just need to add the hooks to be able to access these values easily via ApplyOE.

@pgbrodrick pgbrodrick self-requested a review February 16, 2026 19:23

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This seems reasonable to me. Agreed that eventually, we may want hooks for these, but it depends on how much we end up adjusting them. @davidraythompson , does this look reasonable to you as well? If so, I think this is safe to merge.

@pgbrodrick pgbrodrick merged commit 9d79c76 into isofit:dev Feb 18, 2026
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@evan-greenbrg evan-greenbrg deleted the glint/sky_sigma branch May 22, 2026 15:33
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2 participants