CODEC

-stands for compress/decompress. There are many different codecs when working with video. There are many different codecs, these are the common ones:

• H.264, MPEG-4, Part 10 or AVC (Advanced Video Coding) is currently one of the most commonly used formats for the recording, compression, playback of high definition video.
• VP8 is google's version of MPEG4.
• Lossless is the raw video and best quality is great if your computer can handle it.

CHANNEL

-every image/video is made up of channels

• Red channel, Blue channel, Green channel make up color in screens known as RGB

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• RGBa  -  the (a) is the Alpha channel which makes up the transparency of the image

MASK

-used to block out certain parts of the video. By using the pen tool or brush tool you can make masks.

ROTOSCOPING

-is making masks frame by frame

MATTE

-is the opposite of mask because is cuts out the background video layers and not you selection