Talk:Compression artifact

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For those searching using British spelling: Compression artefact. —The preceding unsigned comment was added by 217.24.129.50 (talk • contribs).

Note that a redirect from the alternative spelling was added just minutes before the comment above was made. - dcljr (talk) 07:45, 17 February 2007 (UTC)

[edit] Audio section

Hi, the audio section looks a bit unprofessional; it seems to be a partial revert of a deletion I made a while back. I think it needs to be rewritten to become more precise and accurate. --Kjoonlee 03:37, 13 October 2006 (UTC)

Saying "aggressive" in the leading sentence sounds a bit NPOV, does it? - 88.73.236.209 00:50, 19 January 2007 (UTC)

[edit] Unclear

In its discussion of picture encoding, the article states:

Where predictive coding of motion pictures is used, as in MPEG-1, compression artifacts tend to remain on several generations of decompressed frames, leading to a "painting" effect being seen, as if the picture were being painted by an unseen artist's paint-brush.

Where motion prediction is used, as in MPEG-2 or MPEG-4, compression artifacts tend to move with the optic flow of the image, leading to a peculiar effect, part way between a painting effect and "grime" that moves with objects in the scene.

So, am I to understand that "predictive coding of motion pictures" and "motion prediction" are two different things? This should probably be explained a bit further. A quick glance through the linked articles didn't help. - dcljr (talk) 07:45, 17 February 2007 (UTC)

[edit] Merge

I think JPEG artifacts should be merged into this article, as they are both practically the same thing, and this article is longer. --AAA! ^(AAAA) 07:45, 16 March 2007 (UTC)