http://avisynth.nl/index.php?action=history&feed=atom&title=FixBrokenChromaUpsampling 2026-06-11T18:41:34Z Revision history for this page on the wiki MediaWiki 1.19.24 http://avisynth.nl/index.php?title=FixBrokenChromaUpsampling&diff=6866&oldid=prev 2015-11-08T15:07:29Z

<p>added category</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 15:07, 8 November 2015</td> </tr><tr><td colspan="2" class="diff-lineno">Line 41:</td> <td colspan="2" class="diff-lineno">Line 41:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Internal filters]]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Internal filters]]</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Chroma_correction]]</ins></div></td></tr> </table>

Raffriff42 http://avisynth.nl/index.php?title=FixBrokenChromaUpsampling&diff=575&oldid=prev 2013-05-09T15:02:26Z

<p>1 revision</p> <table class='diff diff-contentalign-left'> <tr valign='top'> <td colspan='1' style="background-color: white; color:black;">← Older revision</td> <td colspan='1' style="background-color: white; color:black;">Revision as of 15:02, 9 May 2013</td> </tr></table>

Admin http://avisynth.nl/index.php?title=FixBrokenChromaUpsampling&diff=574&oldid=prev 2006-03-30T20:52:38Z

<p></p> <p><b>New page</b></p><div>{{Template:FuncDef|FixBrokenChromaUpsampling(clip ''clip'')}}<br /> <br /> The free Canopus DV Codec v1.00 upsamples the chroma channels incorrectly (although newer non-free versions appear to work fine). Chroma is [http://forum.doom9.org/showthread.php?p=180052#post180052 duplicated from the other field], resulting in the famous [http://www.avisynth.org/Sampling Chroma Upsampling Error ...].<br /> <br /> FixBrokenChromaUpsampling filter compensates for it. You should put this after [[AviSource]] if you're using the above Canopus DV codec. Old versions of the [[DirectShow]] based MS DV codec also might have this problem (the one that comes with DirectX7 (but i need to check this), the one that comes with DirectX8/9 works fine).<br /> <br /> The Canopus DV codec swaps the chroma of the middle 2 for each group of 4 lines:<br /> <br /> {| border=&quot;1&quot;<br /> |- <br /> | frame_correct<br /> | frame_Canopus<br /> |- <br /> | line 1<br /> | line 1<br /> |- <br /> | line 2<br /> | line 3<br /> |- <br /> | line 3<br /> | line 2<br /> |- <br /> | line 4<br /> | line 4<br /> |- <br /> | line 5<br /> | line 5<br /> |- <br /> | line 6<br /> | line 7<br /> |- <br /> | line 7<br /> | line 6<br /> |- <br /> | line 8<br /> | line 8<br /> |}<br /> <br /> For each group of 4 lines FixBrokenChromaUpsampling corrects this by swapping the chroma back.<br /> <br /> <br /> [[Category:Internal filters]]</div>

Wilbert