Talk:4K resolution

Does 3840 x 1080 classify as 4k ?

If 3840 × 2160p and 3840 × 1600p can be called 4k, does 3840 x 1080p also classify as 4k ? --Ne0 (talk) 08:35, 9 January 2018 (UTC)

Yes, that is a 4K resolution. GlenwingKyros (talk) 16:39, 21 April 2018 (UTC)

From what I know, "4K" is classified as 4096x2160, while the resolution 3840x2160 is called UHD 4K or 4K UHD. DanGamingTV (talk) 02:09, 9 November 2020 (UTC)

A common misconception. 4K is a generic term which encompasses both 4096×2160 and 3840×2160, as well as all other resolutions in the same class. 4K UHD is a more specific term generally used to refer to 3840×2160. This is explained in the article. GlenwingKyros (talk) 03:25, 9 November 2020 (UTC)

This is not a misconception. The misconception is that 4K is a generic term which encompasses both 4096×2160 and 3840×2160, as well as all other resolutions in the same class. 3840×2160 is simply UHD. ScholarlyGentleman420 (talk) 16:27, 23 February 2026 (UTC)

It depends. First it has fall under one of the 4K standards. Then there is a distinction between display resolution and media resolution. I haven't found any 4K standard that includes 3840×1080, either as a media or display resolution but maybe someone could point me to one. DCI 4K allows media to be smaller than 4096×2160 in either dimension but not both. Johan Hanson (talk) 15:44, 24 November 2024 (UTC)

Bulb TV

The article says that "on April 11, 2013, Bulb TV created by Canadian serial entrepreneur Evan Kosiner became the first broadcaster to provide a 4K linear channel and VOD content to cable and satellite companies in North America". I can't find any evidence that the channel actually existed. The only mention of it is of press releases about its launch dated April 2013. There's no evidence whatsoever that it actually broadcast anything. Evan Kosiner himself appears to be a self-publicist who doesn't seem to have actually achieved anything at all. Judging by this more recent image the first publicity photo must have been taken a while back, as he seems to have put on weight since then. -Ashley Pomeroy (talk) 20:33, 19 April 2025 (UTC)

In fact, looking at the application, he appears to have successfully filed an application for a television station - but the application was never granted. The press releases all spin this as a successfully being granted a licence, which isn't the same thing. -Ashley Pomeroy (talk) 20:39, 19 April 2025 (UTC)

External links

Further information: Wikipedia: External links and WP:ELCITE

Some things just grow during incremental edits and sometimes get out of hand. The "External links" section, one of the optional appendices, was expanded to 15 entries, organized into three subsections. Three seems to be an acceptable number, and of course, everyone has their favorite to try to add for a fourth. Consensus needs to determine this.

• A tag indicates concerns.

However, none is needed for article promotion.

Some links may be included in WP:ELNO, or What Wikipedia is not (policy) such as WP:NOTREPOSITORY or WP:NOTGUIDE.

• WP:ELDEAD may apply.
• ELCITE applies: Do not use {{cite web}} or other citation templates in the External links section. Citation templates are permitted in the Further reading section. Others, listed below:
• ELpoints #3) states: Links in the "External links" section should be kept to a minimum. A lack of external links or a small number of external links is not a reason to add external links.
• LINKFARM states: There is nothing wrong with adding one or more useful content-relevant links to the external links section of an article; however, excessive lists can dwarf articles and detract from the purpose of Wikipedia. On articles about topics with many fansites, for example, including a link to one major fansite may be appropriate.
• ELMIN: Minimize the number of links.

The External links guideline This page in a nutshell: External links in an article can be helpful to the reader, but they should be kept minimal, meritable, and directly relevant to the article. With rare exceptions, external links should not be used in the body of an article.

Second paragraph, acceptable external links include those that contain further research that is accurate and on-topic, information that could not be added to the article for reasons such as copyright or amount of detail, or other meaningful, relevant content that is not suitable for inclusion in an article for reasons unrelated to its accuracy.

• • Please also note:
• WP:ELBURDEN: Disputed links should be excluded by default unless and until there is a consensus to include them. Please do not add back more links without consensus. Simple solution to facilitate career maintenance tag. Move links here for discussion. The external links section is not for references. Some may be used for that purpose in the article body, or for "Further reading".

Moved links:

Articles

• "3D TV is Dead, Long Live 4K", Forbes, Jan 10, 2013
• Gurule, Donn, 4k and 8k Production Workflows Become More Mainstream, Light beam, archived from the original on 2013-02-16, retrieved 2013-01-29
• What is the meaning of UHDTV and its difference to HDTV?, UHDMI, retrieved 2014-09-10{{citation}}: CS1 maint: deprecated archival service (link)
• "Ultra high resolution television (UHDV) prototype", CD Freaks, archived from the original on 2008-11-18, retrieved 2013-01-29
• "Just Like High-Definition TV, but With Higher Definition", The New York Times, Jun 3, 2004
• "Japan demonstrates next-gen TV Broadcast", Electronic Engineering Times, archived from the original on 2013-05-01, retrieved 2013-01-29.
• "Researchers craft HDTV's successor", PC World, archived from the original on 2008-06-04, retrieved 2013-01-29
• Sugawara, Masayuki (2008), Super Hi-Vision—research on a future ultra-HDTV system (PDF) (technical review), CH: EBU, archived from the original (PDF) on 2009-03-26, retrieved 2013-01-29
• Ball, Christopher Lee (Oct 2008), "Farewell to the Kingdom of Shadows: A filmmaker's first impression of Super Hi-Vision television", Musings, archived from the original on 2013-03-23, retrieved 2013-01-29
• "Visual comparison of the different 4K resolutions", 4k TV, archived from the original on 2014-08-10, retrieved 2014-08-08
• "Why Ultra HD 4K TVs are still stupid", CNet, 2015 follow-up article: "Why 4K TVs aren't stupid (anymore)", CNet

Official sites of NHK

• Super Hi-Vision, JP: NHK, archived from the original on 2010-10-06, retrieved 2013-01-29.
• Science & Technical Research Laboratories, JP: NHK.
• Super Hi-Vision research (annual report), JP: NHK STRL, 2009, archived from the original on 2012-10-18, retrieved 2013-01-29.

Video

• "4K resolution video test sequences for Research", Ultra video, FI: TUT. -- Otr500 (talk) 01:14, 15 July 2025 (UTC)

To 4k Image Upscaler prompt The prompt is also work for restoration of missing details and most important the colour bits with lighting. PROMPT: Restore and enhance an old damaged photo. Remove scratches, stains, and noise. Reconstruct faded or torn areas while preserving original details. Slightly sharpen the image for better clarity, but keep it realistic. Apply natural and era-appropriate colors to skin, hair, and clothing. Use a soft, balanced background color without being too striking. The final result should look like an old photo that has been realistically restored and colorized, while respecting its original appearance.

To 4k Image Upscaler prompt

The prompt is also work for restoration of missing details and most important the colour bits with lighting.

PROMPT: Restore and enhance an old damaged photo. Remove scratches, stains, and noise. Reconstruct faded or torn areas while preserving original details. Slightly sharpen the image for better clarity, but keep it realistic. Apply natural and era-appropriate colors to skin, hair, and clothing. Use a soft, balanced background color without being too striking. The final result should look like an old photo that has been realistically restored and colorized, while respecting its original appearance. ~2026-39045-26 (talk) 08:08, 10 July 2026 (UTC)