http://avisynth.nl/index.php?action=history&feed=atom&title=AntiAliasing 2026-05-01T19:39:20Z Revision history for this page on the wiki MediaWiki 1.19.24 http://avisynth.nl/index.php?title=AntiAliasing&diff=4737&oldid=prev 2014-09-29T21:21:12Z

<p>quick update</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 21:21, 29 September 2014</td> </tr><tr><td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>{{Filter|SpikeSpiegel, Didée, mf, scharfis_brain and Soulhunter|3.0|[[Media:antialiasing.avs|antialiasing.avs]]|Anti-aliasing|</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">{{FilterCat4|External_filters|Scripts|Restoration_filters|Anti-aliasing}}</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>{{Filter</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>|SpikeSpiegel, Didée, mf, scharfis_brain and Soulhunter</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>|3.0</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>|[[Media:antialiasing.avs|antialiasing.avs]]</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>|Anti-aliasing</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>|</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* YV12</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* YV12</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>|}}</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>|<ins class="diffchange diffchange-inline">7=[http://forum.doom9.org/showthread.php?t=83396 Doom9 Thread]</ins>}}</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">{{Template:FuncDef| antialiasing</del>(<del class="diffchange diffchange-inline">clip orig,int &quot;th_luma&quot;,int &quot;th_croma&quot;,string &quot;type&quot;,int &quot;aath&quot;</del>) <del class="diffchange diffchange-inline">}}</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">== Description ==</ins></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 class="diffchange diffchange-inline">Anti-aliasing script; This filter is meant for good quality clips with soft aliasing. Thanks to MaskTools' functions, a strong AA-filter </ins>(<ins class="diffchange diffchange-inline">SangNom</ins>) <ins class="diffchange diffchange-inline">is applied only where it's needed without producing artefacts in other areas.&lt;br/&gt;</ins></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 class="diffchange diffchange-inline">'''Note:''' This script is very old and usually not recommended nowadays.</ins></div></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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">== Abstract ==</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">Anti-aliasing script.</del></div></td><td colspan="2">&#160;</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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>=== <del class="diffchange diffchange-inline">Requires Filters </del>===</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>== <ins class="diffchange diffchange-inline">Requirements </ins>=<ins class="diffchange diffchange-inline">=</ins></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 class="diffchange diffchange-inline">* AviSynth 2.5.8 or later</ins></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 class="diffchange diffchange-inline">* [[FAQ_different_types_content#How_do_I_recognize_progressive.2C_interlaced.2C_telecined.2C_hybrid_and_blended_content.3F|Progressive]] input only </ins></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 class="diffchange diffchange-inline">* Supported color formats: [[YV12]]</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</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 class="diffchange diffchange-inline">=== Required Plugins </ins>===</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>*[[SangNom]]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>*[[SangNom]]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>*[[MaskTools]]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>*[[MaskTools]]</div></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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">== Description ==</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">Basic script using edge detection for aliasing removal.</del></div></td><td colspan="2">&#160;</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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">{{Par</del>|<del class="diffchange diffchange-inline">th_luma|int|20}}</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">== [[Script variables</ins>|<ins class="diffchange diffchange-inline">Syntax and Parameters]] ==</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>{{<del class="diffchange diffchange-inline">Par|th_croma</del>|int<del class="diffchange diffchange-inline">|20}}</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">:</ins>{{<ins class="diffchange diffchange-inline">Template:FuncDef</ins>| <ins class="diffchange diffchange-inline">antialiasing (clip orig, </ins>int &quot;th_luma&quot;<ins class="diffchange diffchange-inline">, int </ins>&quot;th_croma&quot;<ins class="diffchange diffchange-inline">, string &quot;type&quot;, int &quot;aath&quot;) }}</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>&quot;th_luma&quot; <del class="diffchange diffchange-inline">&amp; </del>&quot;th_croma&quot; <del class="diffchange diffchange-inline">are the edge detection thresholds : lower values=more edges filtered.</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">{{Par|type|string|sobel}}</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">&quot;type&quot; is the matrix used for edge detection: with &quot;sobel&quot; (default) only the hi-contrast edges, where artefacts are more noticeable, are filtered. If you want to test other matrices, read the MaskTools Guide for more info.</del></div></td><td colspan="2">&#160;</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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>{{<del class="diffchange diffchange-inline">Par</del>|aath|int|48}}</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">::</ins>{{<ins class="diffchange diffchange-inline">Par2|orig|clip| }}</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">Anti</del>-aliasing strength (default should be fine)</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">:::Input clip.</ins></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 class="diffchange diffchange-inline">&lt;br&gt;</ins></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 class="diffchange diffchange-inline">::{{Par2|th_luma|int|20}}</ins></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 class="diffchange diffchange-inline">::{{Par2|th_croma|int|20}}</ins></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 class="diffchange diffchange-inline">:::&quot;th_luma&quot; &amp; &quot;th_croma&quot; are the edge detection thresholds : lower values=more edges filtered.</ins></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 class="diffchange diffchange-inline">&lt;br&gt;</ins></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 class="diffchange diffchange-inline">::{{Par2|type|string|&quot;sobel&quot;}}</ins></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 class="diffchange diffchange-inline">:::&quot;type&quot; is the matrix used for edge detection: with &quot;sobel&quot; (default) only the hi-contrast edges, where artefacts are more noticeable, are filtered. &lt;br/&gt;If you want to test other matrices, read the MaskTools Guide for more info.</ins></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 class="diffchange diffchange-inline">&lt;br&gt;</ins></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 class="diffchange diffchange-inline">::{{Par2</ins>|aath|int|48}}</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 class="diffchange diffchange-inline">:::SangNom anti</ins>-aliasing strength (default should be fine)<ins class="diffchange diffchange-inline">.</ins></div></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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">== Examples ==</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">&lt;pre&gt;</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">avisource(&quot;blah.avi&quot;)</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">antialiasing()</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">&lt;/pre&gt;</del></div></td><td colspan="2">&#160;</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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">&lt;pre&gt;</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">== Examples ==</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">avisource</del>(&quot;blah.avi&quot;)</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">AntiAliasing with defaults settings:</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>antialiasing(<del class="diffchange diffchange-inline">12</del>,<del class="diffchange diffchange-inline">15)</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline"> [[AviSource]]</ins>(&quot;blah.avi&quot;)</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">&lt;/pre&gt;</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline"> </ins>antialiasing(<ins class="diffchange diffchange-inline">th_luma=20</ins>, <ins class="diffchange diffchange-inline">th_chroma</ins>=<ins class="diffchange diffchange-inline">20, type</ins>=<ins class="diffchange diffchange-inline">&quot;sobel&quot;, aath</ins>=<ins class="diffchange diffchange-inline">48)</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>&#160;</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>== <del class="diffchange diffchange-inline">Links </del>=<del class="diffchange diffchange-inline">=</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">[http://forum.doom9.org/showthread.php?t=83396 Doom9 thread]</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">Download current version [[Media:antialiasing.avs|antialiasing.avs]].</del></div></td><td colspan="2">&#160;</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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[<del class="diffchange diffchange-inline">[Category</del>:External <del class="diffchange diffchange-inline">filters</del>]]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">==External Links ==</ins></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 class="diffchange diffchange-inline">*</ins>[<ins class="diffchange diffchange-inline">http</ins>:<ins class="diffchange diffchange-inline">//forum.doom9.org/showthread.php?t=83396 Doom9 Forum] - Discussion</ins></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 class="diffchange diffchange-inline">&lt;br&gt;</ins></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 class="diffchange diffchange-inline">&lt;br&gt;</ins></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 class="diffchange diffchange-inline">-----------------------------------------------</ins></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 class="diffchange diffchange-inline">'''Back to [[External_filters#Anti-aliasing|</ins>External <ins class="diffchange diffchange-inline">Filters</ins>]] <ins class="diffchange diffchange-inline">&amp;larr;'''</ins></div></td></tr> </table>

Reel.Deal http://avisynth.nl/index.php?title=AntiAliasing&diff=1322&oldid=prev 2013-05-19T22:03:48Z

<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 22:03, 19 May 2013</td> </tr></table>

Admin http://avisynth.nl/index.php?title=AntiAliasing&diff=1321&oldid=prev 2013-05-18T21:02:29Z

<p></p> <p><b>New page</b></p><div>{{Filter|SpikeSpiegel, Didée, mf, scharfis_brain and Soulhunter|3.0|[[Media:antialiasing.avs|antialiasing.avs]]|Anti-aliasing|<br /> * YV12<br /> |}}<br /> {{Template:FuncDef| antialiasing(clip orig,int &quot;th_luma&quot;,int &quot;th_croma&quot;,string &quot;type&quot;,int &quot;aath&quot;) }}<br /> <br /> == Abstract ==<br /> Anti-aliasing script.<br /> <br /> === Requires Filters ===<br /> *[[SangNom]]<br /> *[[MaskTools]]<br /> <br /> == Description ==<br /> Basic script using edge detection for aliasing removal.<br /> <br /> {{Par|th_luma|int|20}}<br /> {{Par|th_croma|int|20}}<br /> &quot;th_luma&quot; &amp; &quot;th_croma&quot; are the edge detection thresholds : lower values=more edges filtered.<br /> <br /> {{Par|type|string|sobel}}<br /> &quot;type&quot; is the matrix used for edge detection: with &quot;sobel&quot; (default) only the hi-contrast edges, where artefacts are more noticeable, are filtered. If you want to test other matrices, read the MaskTools Guide for more info.<br /> <br /> {{Par|aath|int|48}}<br /> Anti-aliasing strength (default should be fine)<br /> <br /> == Examples ==<br /> &lt;pre&gt;<br /> avisource(&quot;blah.avi&quot;)<br /> antialiasing()<br /> &lt;/pre&gt;<br /> <br /> &lt;pre&gt;<br /> avisource(&quot;blah.avi&quot;)<br /> antialiasing(12,15)<br /> &lt;/pre&gt;<br /> <br /> == Links ==<br /> [http://forum.doom9.org/showthread.php?t=83396 Doom9 thread]<br /> <br /> Download current version [[Media:antialiasing.avs|antialiasing.avs]].<br /> <br /> [[Category:External filters]]</div>

Wilbert