Wikipedia:Featured picture candidates/All 24-bit RGB colors

All 24-bit RGB colors
Voting period ends on 4 Jul 2020  at 02:36:25 (UTC)
 * Reason:This image displays all 16,777,216 colors of a 24-bit RGB palette, which is commonly used in computer graphics and known as "truecolor".
 * Articles in which this image appears:Color depth, Color vision, Color
 * FP category for this image:Photographic techniques, terms, and equipment
 * Creator:Marc Mongenet

– John M Wolfson (talk • contribs) 18:47, 24 June 2020 (UTC)
 * Support as nominator – – John M Wolfson (talk • contribs) 02:36, 24 June 2020 (UTC)
 * Comment. I find the description seriously misleading. The image indeed has 1677216 pixels at full resolution, which is far larger than it would be displayed within an Encyclopedia article, so the EV of having an image with that property is dubious. But more than that, it is divided into an 1024 x 1024 array of 16 x 16 squares, each of which is arranged with some pixels as a frame around a central bump of other pixels. So if you look at it at a large enough resolution, it appears to be pixelated, but actually each of those things that looks like a pixel is really one of those 16 x 16 squares. The net effect is that although it may be true that all 24-bit colors are represented somewhere (I didn't check), the colors that you see across the image are not the full spread of 24-bit colors, because each thing that you think is a single pixel is really many. —David Eppstein (talk) 04:40, 24 June 2020 (UTC)
 * I also noticed the squares in a lattice. Looking through the history it appears that the original creator of the image simply overlaid blue squares over a preexisting image to create this one. I do think that this concept is still a worthy FA idea with sufficient EV in its niche, so I'd be more than happy to create an alt that is more honest and direct. – John M Wolfson (talk • contribs) 04:56, 24 June 2020 (UTC)
 * Oppose the lattice. Charlesjsharp (talk) 08:06, 24 June 2020 (UTC)
 * Oppose per above. Does not work in thumb or article space - works only in full size (but cannot then be seen all at once). No explanation on the file page of how the 16x16 blue squares contain 256 levels of blue. PS: We have an existing FP showing 1 million colors, with a thorough explanation on the file page. The full-size image of that will fit on a monitor screen, being 1000x1000 pixels. --Janke | Talk 10:08, 24 June 2020 (UTC)
 * Withdrawing nom, will probably create a non-lattice version for future nomination. The 1-million color thing looks cool, but I think the full 24-bit gamut would be even better if done right. Thanks for your comments! – John M Wolfson (talk • contribs) 18:47, 24 June 2020 (UTC)