Blockiness in a raw video

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ram m
ram m le 25 Jan 2012
hi
I have a paper calculating blockinesss in a raw video, My question is does blockiness exits in a raw video? because I have read it occurs after encoding using DCT and decoding it using some codec.
Thanks Ram

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Walter Roberson
Walter Roberson le 25 Jan 2012
Blockiness does occur in raw video, even in "high resolution".
Consider the "stair-case effect".
A sensor pixel is always a particular value for the entire pixel, so edges and curves can get "spread out" in blocky ways.

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