This is a photo of a small portion of the ceiling of the US National Art Gallery in Washington D.C. Was on vacation last week and while looking for triangles, happened to look up and see a whole ceiling made of them.
The round things sticking out in the picture are lights. The fine lines in the triangle are blinds.
Post-processing:
* In raw format, changed temperature to give it a strong blue tone (temp: 3500)
* Crop
* Gaussian blur 2.3 pixel radius to reduce artifacts that occur in the fine lines from resizing during the next step
* Resize (Used bilinear resampling to try to get a good representation of the fine lines without artifacts.)
* Save for web
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