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Thread: What is the term for images or video looking "blocky" on TV?

  1. #1

    Default What is the term for images or video looking "blocky" on TV?

    Last edited by Advice Pro; 04-03-2009 at 08:54 PM.

  2. #2

    Default

    you mean pixelated?
    Wil

    Software Used:
    TGV Edius 6, TGV ProCoder 3, DVD Lab Pro. 2

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  3. #3
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    Default

    That is pixellated.

    Looks like a still - not a video frame - uncompressed.

    WIth compressed video you can often see are called discrete cosine trnasform blocks ( DCT ). If you have acute senses you can see them on any SD low b width tv signal, some HD and most web video. When the screen is full of updates / action you can see blocks of colour.

    You can see them on DVDs too sometimes.

    Discrete cosine transform - Wikipedia, the free encyclopedia

    See pics - one DV - the other is a 1mbit wmv with dct blocks visible.
    Attached Images Attached Images
    Last edited by Mark W; 04-04-2009 at 04:58 PM.

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