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Add ICC Lab interpretation#317

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197g merged 1 commit intomainfrom
cielab
Dec 30, 2025
Merged

Add ICC Lab interpretation#317
197g merged 1 commit intomainfrom
cielab

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@197g 197g commented Dec 30, 2025

The CIE Lab interpretation uses heterogeneous samples, and the ITU Lab encoding requires the Tag Decode (433, 0x01B1) which has default values depending on bit depth and convering values into floating points, probably.

See also Photometric Interpretation: https://web.archive.org/web/20050309053132/http://www.awaresystems.be/imaging/tiff/tifftags/photometricinterpretation.html
See also Tag Decode: https://web.archive.org/web/20050309072856/http://www.awaresystems.be/imaging/tiff/tifftags/decode.html

Closes: #312

The CIE Lab interpretation uses heterogeneous samples, and the ITU Lab
encoding requires the Tag Decode (433, 0x01B1) which has default values
depending on bit depth and convering values into floating points, probably.

See also Photometric Interpretation: <https://web.archive.org/web/20050309053132/http://www.awaresystems.be/imaging/tiff/tifftags/photometricinterpretation.html>
See also Tag Decode: <https://web.archive.org/web/20050309072856/http://www.awaresystems.be/imaging/tiff/tifftags/decode.html>
@197g 197g merged commit d38fba4 into main Dec 30, 2025
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@197g 197g deleted the cielab branch December 30, 2025 05:55
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Could not load an image with Lab colorspace embeded: UnsupportedError(UnknownInterpretation)

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