Archive:Kdenlive/Manual/Effects/Alpha manipulation/Blue Screen

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    Blue Screen

    FilterFrei0r-bluescreen0r

    This effect allows you to do Chroma Keying (Chroma key compositing/Green Screen) on Kdenlive

    Tutorial 1

    Youtube video on Chroma Keying which uses the Blue Screen effect

    Tutorial 2

    Another video on chroma keying / green screen. This one also shows you how to use rotoscoping to remove stuff you do not want from out of your frame. It also means you don't need to fill your whole frame with the green screen either.

    Also uses

    Tutorial 3

    Tutorial showing how to use the "Blue screen" function and keyframes to animate one image moving over another in the KDEnlive video editor

    Also uses

    Tutorial 4

    Shows usage of the following effects: blue screen, alpha operations - shrinkhard, denoiser and keysplillm0pup

    See also

    See also keysplillm0pup effect in the Misc group. The keyspillm0pup effect can be used to improve the edges of the blue screen effect - when edge problems are caused by "keyspill". Keyspill is when the colour of the screen used for colourkeying spills onto the subject due to light reflection.

    See also Frei0r - select0r which also does color based alpha selection. This might not come installed on Kdenlive by default.

    see this thread for some discussion on chroma keying issues in Kdenlive