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License tagging for Image:JorieGraham.jpg

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This is an automated notice by OrphanBot. If you need help on selecting a tag to use, or in adding the tag to the image description, feel free to post a message at Wikipedia:Media copyright questions. 16:08, 15 September 2007 (UTC)

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Lambertian surfaces

I reverted you here. While it's true in general that luminance is directional, the special property of Lambertian surfaces is that their luminance is the same at all angles of view. Srleffler (talk) 04:40, 8 August 2022 (UTC)

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