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| -SPM-Mad |
| Posted: Mar 17 2003, 06:45 PM |
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Advanced Member
Group: Members
Posts: 197
Member No.: 1332
Joined: 13-December 02
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hi,
i just wonder if motion wavelet compression is better then divx. because wavelet formats dont have these ugly block-artefacts.
i'm still shearching for any demo of such a codec, but if i find one, ill post some compression results. |
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| phaeron |
| Posted: Mar 18 2003, 03:37 AM |
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Virtualdub Developer
Group: Administrator
Posts: 7773
Member No.: 61
Joined: 30-July 02
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The lower complexity of the wavelet transform does indeed mean you can encode entire images without blocking, but there are other reasons to block the image besides the image transform, two being motion prediction and error recovery. Indeo is wavelet-based but still has block artifacts at high compression ratios.
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| Neo Neko |
| Posted: Mar 18 2003, 09:57 AM |
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VirtualdubMod Alpha tester
Group: Vdubmod Alpha Testing Team
Posts: 474
Member No.: 24
Joined: 11-July 02
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Yes and while wavelet based codecs don't tend to block they tend to blur. Bad. |
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