Lumi masking: Difference between revisions
Content deleted Content added
Turlo Lomon (talk | contribs) ←Undid revision 115532378 by Dazza1234567 (talk) |
Tpbradbury (talk | contribs) Filled in 1 bare reference(s) with reFill 2 |
||
| (20 intermediate revisions by 18 users not shown) | |||
| Line 1: | Line 1: | ||
{{Short description|Video compression technique}} |
|||
| ⚫ | '''Lumi masking''' is a technique used by [[video compression]] [[software]], which reduces quality in very bright or very dark areas of the picture, as quality loss in these areas is less likely to be visible. |
||
{{Refimprove|date=August 2014}} |
|||
| ⚫ | '''Lumi masking''' (derived from [[luminance]]), also known as '''psychovisual enhancements''' or '''adaptive quantization''', is a technique used by [[video compression]] [[software]], which reduces quality in very bright or very dark areas of the picture, as quality loss in these areas is less likely to be visible.<ref name="experts123">{{Cite web|url=http://www.experts123.com/questions|title=Questions|date=April 26, 2017}}</ref> The reduction in quality (and therefore [[bit rate]]) in certain areas of the picture caused by using lumi masking allows more bits to be allocated to the rest of the video, thus improving overall quality. Lumi masking is not perfect, however, and in some cases the degradation in quality it causes is visible.<ref name="experts123" /> |
||
| ⚫ | |||
Lumi is [[Finnish language|Finnish]] for snow but in this context it is more likely to mean [[Luminance (video)|luma]] (or luminance) than the Finnish meaning. |
|||
{{Uncategorized|February 2007}} |
|||
| ⚫ | |||
* [[Subjective video quality]] |
|||
==References== |
|||
{{compu-soft-stub}} |
|||
{{Reflist}} |
|||
{{DEFAULTSORT:Lumi Masking}} |
|||
[[Category:Video compression]] |
|||
{{multimedia-software-stub}} |
|||
Latest revision as of 18:01, 14 September 2023
 | This article needs additional citations for verification. (August 2014) |
Lumi masking (derived from luminance), also known as psychovisual enhancements or adaptive quantization, is a technique used by video compression software, which reduces quality in very bright or very dark areas of the picture, as quality loss in these areas is less likely to be visible.[1] The reduction in quality (and therefore bit rate) in certain areas of the picture caused by using lumi masking allows more bits to be allocated to the rest of the video, thus improving overall quality. Lumi masking is not perfect, however, and in some cases the degradation in quality it causes is visible.[1]
See also
[edit]References
[edit]- ^ a b "Questions". April 26, 2017.
 | This multimedia software-related article is a stub. You can help Wikipedia by expanding it. |