====== television ======

===== test patterns =====

These TV test patterns can be freely downloaded and used for checking colour and backlight uniformity, pixel defects and dithering artifacts.

{{:guide:tv-test-pattern_col000_black.png?direct&100|}}
{{:guide:tv-test-pattern_col001_blue.png?direct&100|}}
{{:guide:tv-test-pattern_col010_green.png?direct&100|}}
{{:guide:tv-test-pattern_col011_cyan.png?direct&100|}}

{{:guide:tv-test-pattern_col100_red.png?direct&100|}}
{{:guide:tv-test-pattern_col101_magenta.png?direct&100|}}
{{:guide:tv-test-pattern_col111_white.png?direct&100|}}
{{:guide:tv-test-pattern_gradient-grey50-white.png?direct&100|}}

{{:guide:tv-test-pattern_grey05.png?direct&100|}}
{{:guide:tv-test-pattern_grey15.png?direct&100|}}
{{:guide:tv-test-pattern_grey25.png?direct&100|}}
{{:guide:tv-test-pattern_grey50.png?direct&100|}}

{{:guide:tv-test-pattern_grey75.png?direct&100|}}
{{:guide:tv-test-pattern_olive.png?direct&100|}}
{{:guide:tv-test-pattern_teal.png?direct&100|}}
{{:guide:tv-test-pattern_yellow.png?direct&100|}}

buy test patterns online: [[https://shop.burosch.de/|Burosch (10€/46 images)]]

==== skin tones ====

<code bash>
mkdir skintones
cd skintones/
wget https://angelicadass.com/wp-content/uploads/2020/07/humanae-Angelica-Dass-{01..44}.jpg
</code>

Download {{:guide:tv-test-pattern_skintones.svg?linkonly|}}, open with inkscape, export as PNG.

==== colour calibration ====
You can use an Android app, e.g. [[https://f-droid.org/packages/com.color.colornamer/|Color Namer (F-Droid)]], to check if the screen is displaying the right colour. It displays colours as hex RGB values (#rrggbb). If the channel's values are too high, you can reduce them in TV settings.

{{:guide:tv-test-pattern_calibration.svg?direct&400|}}

===== Resolutions =====

^ name ^ pixel size [WxH] ^ notes |
| HD | 1280 x 720 | also called HD ready |
| Full HD | 1920 x 1080 | also called 1080p |
| 4K UHD | 3840 x 2160 | panel size |
| DCI 4K | 4096 x 2160 | what filmmakers use, gets cut off on your TV |

===== youtube =====
  * [[https://www.youtube.com/channel/UCqHuvvETx7PKapuchT2BnSA|Stop the FOMO]] – Stop the "Fear of Missing Out" on the top TVs and tech entertainment gear. Latest news & rants about all TV brands.
  * [[https://www.youtube.com/channel/UCcCYOO2uYPnG-21WDOWdwew|HDTVTest]] – Vincent talking about TVs and making dry jokes about his sex life.
  * [[https://www.youtube.com/channel/UCDZ95EUKhw9wrwXdiKskgKw|The Tech Giant]] – big guy doing jovial and non-technical TV reviews.