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<div class="twikiMiddleContainer"><div class="twikiMain"><div class="twikiSearchResults"><div class="twikiSearchResultsHeader">&nbsp;<tt><b>&lt;&lt;O&gt;&gt;</b></tt>&nbsp; Difference Topic
		<b><a href="../../view/Cinelerra/MaskEffectsTutorial">MaskEffectsTutorial</a></b>
		(<a href="http://www.ftconsult.com/twiki/bin/view/Cinelerra/MaskEffectsTutorial?rev=r1.1">r1.1</a> - 21&nbsp;Jan&nbsp;2004 - <a class="twikiLink" href="../../view/Main/AlexFerrer">AlexFerrer</a>)</div>
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<tr><th class="twikiFirstCol" bgcolor="#99CCCC"> <strong>META TOPICPARENT</strong> </th><td colspan="2" bgcolor="#FFFFCC"> <a class="twikiLink" href="../../view/Cinelerra/CompositingMask">CompositingMask</a> </td></tr>
</table>
<h2><a name="Mask_Effects_Tutorial"> </a><a name="_Mask_Effects_Tutorial_"> </a> <a class="twikiLink" href="../../view/Cinelerra/MaskEffectsTutorial">Mask Effects Tutorial</a> </h2>
<p />
This section contains user submited tutorials to create effects using masks. if you know how to create a new effect with masks, list the steps here. 
<hr />
<h3><a name="RemovingIntrudersFromVideo_Remov"> </a><a name="_RemovingIntrudersFromVideo_Remo"> </a> <a class="twikiLink" href="../../view/Cinelerra/RemovingIntrudersFromVideo">Removing intruders from video</a> when taping an interview. </h3>
Arrive early to your interview and then ..
<ul>
<li> Set the camera on a tripod and frame the shot.
</li>
<li> Take a 10 seconds "safety" shot of the empty stage area. (<em>with no bystanders!</em>)
</li>
<li> Bring your subject to stage, continue taping the shot as normal (<em>with out moving the camera!</em>) 
</li>
</ul>
At this point, let's say some bystander walks by or a microphone boom drops from above... 
<ul>
<li> Continue taping the shot as if nothing happened. 
</li>
</ul>
Latter, back on the editing room, lets remove the "problems" ...
<ul>
<li> Create two video tracks
</li>
<li> Load the interview on track 1
</li>
<li> Load the "safety" shot on track 2
</li>
<li> Using the <a class="twikiLink" href="../../view/Cinelerra/PatchBay">PatchBay</a> Single select Track 1
</li>
<li> <a class="twikiLink" href="../../view/Cinelerra/CompositingMask">Create a mask</a> around the subject. <em>( Allow plenty of for space for hand and head movement)</em>
</li>
<li> set Mask Mode to <code><b>Multiply Alpha</b></code>
</li>
<li> Play the trouble segment ...
</li>
<li> Viola!  the object is gone!
</li>
</ul>
<p />
Submited by: <a class="twikiLink" href="../../view/Main/AlexFerrer">AlexFerrer</a> - 21 Jan 2004
<hr />
<p />
<p />
<h3><a name="AreaBoundEffect_Applying_effects"> </a><a name="_AreaBoundEffect_Applying_effect"> </a> <a class="twikiLink" href="../../view/Cinelerra/AreaBoundEffect">Applying effects to bound areas.</a> </h3>
<ul>
<li> Create two video tracks
</li>
<li> Load the same video on both tracks
</li>
<li> Apply the desired effect to track 1 and set appropiately.
</li>
<li> Single select track 1
</li>
<li> Wrap the desired areas with a mask (if you need to affect more than one area, use the <code>mask number=</code> option)
</li>
<li> Set <code><b>Mode</b></code> to Multiply Alpha
</li>
<li> Done!
</li>
</ul>
<hr />
<p />
-- <a class="twikiLink" href="../../view/Main/AlexFerrer">AlexFerrer</a> - 21 Jan 2004
<p />
<p />
<p />
-- <a class="twikiLink" href="../../view/Main/AlexFerrer">AlexFerrer</a> - 21 Jan 2004
<hr />
</td></tr>

</table></div><div class="twikiTopicAction"><a href="../../view/Cinelerra/MaskEffectsTutorial">View topic</a>
 <span class="twikiSeparator">|</span> <a href="MaskEffectsTutorial">Diffs</a>  | <a href="http://www.ftconsult.com/twiki/bin/view/Cinelerra/MaskEffectsTutorial?rev=1.1">r1.1</a>
 <span class="twikiSeparator">|</span> <a href="http://www.ftconsult.com/twiki/bin/oops/Cinelerra/MaskEffectsTutorial?template=oopsmore&param1=1.1&param2=1.1">More</a>
</div><div class="twikiTopicInfo"><span class="twikiRevInfo twikiGrayText">Revision  - <br />
Revision r1.1 - 21 Jan 2004 - 16:22 - <a class="twikiLink" href="../../view/Main/AlexFerrer">AlexFerrer</a></span></div>
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