Difference between revisions of "Kdenlive/Manual/Effects/Alpha manipulation/Blue Screen/uk"

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===== Basic Chroma Keying Tutorial =====  
 
===== Basic Chroma Keying Tutorial =====  
  
1. Select the clip you want to chroma key in the timeline.
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1. Позначте кліп, до якого ви хочете застосувати хромакей на монтажному столі.
  
2. Search for "chroma key" in the effects tab, and drag it onto the properties tab.
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2. Знайдіть пункт «Хромакей» на вкладці ефектів і перетягніть його на вкладку властивостей.
  
 
3. Click on the button that looks like a water droplet, and then click on the background of the video. This will chroma key out the background.
 
3. Click on the button that looks like a water droplet, and then click on the background of the video. This will chroma key out the background.

Revision as of 13:12, 16 July 2019

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Хромакей

This effect allows you to do Chroma Keying (also known as Green Screen or Blue Screen) in Kdenlive. Chroma keying is where you remove backgrounds of a similar colour. This effect is a very basic. For a more complication alpha manipulation/background removal effect, use Colour Selection

For black backgrounds, the screen transition is slightly more effective.

Here are some video tutorials on how to use chroma key.

Basic Chroma Keying Tutorial

1. Позначте кліп, до якого ви хочете застосувати хромакей на монтажному столі.

2. Знайдіть пункт «Хромакей» на вкладці ефектів і перетягніть його на вкладку властивостей.

3. Click on the button that looks like a water droplet, and then click on the background of the video. This will chroma key out the background.

4. Use the variance slider to control the amount of background chroma keyed out. This will require adjustment if your chroma key didn't immediately turn out perfect


Відеопідручник
Додаткова інформація

See also Rotoscoping effect. Rotoscoping is where you manual draw a region, and everything outside/inside that region will disappear. This is useful for backgrounds with multiple different colours.

See also Key Spill Mop Up effect in the Misc group. The Key Spill Mop Up effect can be used to improve the edges of the blue screen effect - when edge problems are caused by "keyspill". Keyspill is when the color of the screen used for colorkeying spills onto the subject due to light reflection.

See also Colour Selection which also does color based alpha selection, but in a much more detailed fashion. Use it for less contrasting or more complex backgrounds.


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