Feature: improved image alpha channel handling#434

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barwojcik wants to merge 9 commits intofacebookresearch:mainfrom

barwojcik:feat/alpha-handling

Commits on Nov 21, 2025

Changed alpha mask handling in `load_and_preprocess_images`
barwojcik
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Updated usage of `load_and_preprocess_images` to handle returned alpha masks
barwojcik
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Integrated alpha mask handling in a predictions and visualization pipeline
barwojcik
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Added background color mapping and dynamic selection in `load_and_preprocess_images`
barwojcik
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Incorporated alpha mask processing into viser visualization pipeline
barwojcik
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Fixed typo
barwojcik
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Changed alpha channel handling in `load_and_preprocess_images_square`
barwojcik
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Integrated alpha mask processing into COLMAP pipeline
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Commits on Dec 22, 2025

Fixed missing alpha mask selection in `visual_util` for frame-specific processing
barwojcik
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