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Re:Introduction to the Fourier Transform for Image Processing by ArtWomb on Wednesday May 17, 2023 @08:55AM (#35974598)
Conversely, where is the actual Lena reference image? 8-bit pixel depth, 512x512, uncompressed tiff format preferably. Is there a canonical persistent URI someplace?
Re:Introduction to the Fourier Transform for Image Processing by zamadatix on Wednesday May 17, 2023 @09:13AM (#35974773)
https://web.archive.org/web/20160322020730/https://sipi.usc....

At this point archive services are the best bet for this kind of image.

Re:Introduction to the Fourier Transform for Image Processing by throwthisawayhn on Wednesday May 17, 2023 @09:23AM (#35974900)
Yes, the "Lenna Story" website: http://www.lenna.org/

A permanent link to the TIFF image itself is: http://www.lenna.org/lena_std.tif

Re:Introduction to the Fourier Transform for Image Processing by ska on Wednesday May 17, 2023 @09:54AM (#35975230)
Only sort of. Since the image has been in use since before web services etc., more than one different copy was used as "canonical" so it's sort of unsolvable if you want to reproduce work. There has been more recent efforts to pick a reference one, as linked in this thread.
Re:Introduction to the Fourier Transform for Image Processing by ArtWomb on Wednesday May 17, 2023 @11:46AM (#35976998)
Reply within a hour, thnx hn ;)

Intrigue. Looks like it was removed from the SIPI db?

https://sipi.usc.edu/database/database.php?volume=misc

World needs a new 600 DPI reference scan. To the Playboy Archives!