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pith:7CZZIVH7

pith:2026:7CZZIVH74QIOON7N7CP7K3I7D3

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Color Constancy in Hyperspectral Imaging via Reduced Spectral Spaces

G. Dofri Vidarsson, Liying Lu, Sabine S\"usstrunk

Hyperspectral data reduced to compact spectral spaces can outperform RGB for illuminant estimation.

arxiv:2605.13306 v1 · 2026-05-13 · cs.CV

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Claims

C1strongest claim

Our results offer practical insights into how hyperspectral information can be efficiently exploited for illuminant estimation and identify conditions under which compact spectral representations outperform conventional RGB-based approaches.

C2weakest assumption

That the Color-by-Correlation framework remains effective and that the chosen dimensionality reduction strategies preserve the necessary spectral information for accurate illuminant estimation without introducing new ambiguities.

C3one line summary

Compact reduced spectral spaces from hyperspectral data can outperform RGB for illuminant estimation in color constancy under certain conditions when using the Color-by-Correlation method.

References

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[1] The human visual system achieves high color constancy through mechanisms such as chromatic adaptation

[2] Color Constancy in Hyperspectral Imaging via Reduced Spectral Spaces 2026 · arXiv:2605.13306

[3] Dataset We synthesize a large number of relit spectral images (31- channel hyperspectral images) by rendering hyperspectral re- flectance images under various illuminants

[4] Results are averaged over the full test set

[5] CONCLUSIONS In this work, we studied illuminant estimation from hyper- spectral images within the Color by Correlation framework, focusing on how spectral representation and dimensional- ity reduction

Cited by

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Color Constancy in Hyperspectral Imaging via Reduced Spectral Spaces

Receipt and verification

First computed	2026-05-18T02:44:48.945966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8b39454ffe410e737edf89ff56d1f1eeb93765fa5a20ccd4482162353ad3a39

Aliases

arxiv: 2605.13306 · arxiv_version: 2605.13306v1 · doi: 10.48550/arxiv.2605.13306 · pith_short_12: 7CZZIVH74QIO · pith_short_16: 7CZZIVH74QIOON7N · pith_short_8: 7CZZIVH7

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curl -sH 'Accept: application/ld+json' https://pith.science/pith/7CZZIVH74QIOON7N7CP7K3I7D3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f8b39454ffe410e737edf89ff56d1f1eeb93765fa5a20ccd4482162353ad3a39

Canonical record JSON

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    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-13T10:19:20Z",
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