User talk:Dcouzin

License tagging for Image:JorieGraham.jpg
Thanks for uploading Image:JorieGraham.jpg. Wikipedia gets thousands of images uploaded every day, and in order to verify that the images can be legally used on Wikipedia, the source and copyright status must be indicated. Images need to have an image tag applied to the image description page indicating the copyright status of the image. This uniform and easy-to-understand method of indicating the license status allows potential re-users of the images to know what they are allowed to do with the images.

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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 Media copyright questions. 16:08, 15 September 2007 (UTC)

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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