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	<title>Carlo Alducente&#039;s Blog &#187; BitmapData</title>
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	<link>http://labs.alducente.com</link>
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		<title>Multiple Motion Areas in Flash Motion Detection</title>
		<link>http://labs.alducente.com/2010/12/29/multiple-motion-areas-in-flash-motion-detection/</link>
		<comments>http://labs.alducente.com/2010/12/29/multiple-motion-areas-in-flash-motion-detection/#comments</comments>
		<pubDate>Wed, 29 Dec 2010 16:18:39 +0000</pubDate>
		<dc:creator>alducente</dc:creator>
				<category><![CDATA[AS3]]></category>
		<category><![CDATA[Actionscript 3]]></category>
		<category><![CDATA[BitmapData]]></category>
		<category><![CDATA[BlendMode]]></category>
		<category><![CDATA[DIFFERENCE]]></category>
		<category><![CDATA[experiments]]></category>
		<category><![CDATA[Flash]]></category>
		<category><![CDATA[Motion Detection]]></category>
		<category><![CDATA[Webcam]]></category>

		<guid isPermaLink="false">http://labs.alducente.com/?p=226</guid>
		<description><![CDATA[Motion detection in Flash relies on a technique that uses frame comparison to detect whether pixels have changed within the camera feed. A &#8220;comparison&#8221; frame would look something like the image below, where the white areas indicate movement or a change in pixel value. Using the getColorBoundsRect() method, the application can approximate which areas of [...]]]></description>
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		<slash:comments>2</slash:comments>
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		<title>AS3 Sierpinski Triangle</title>
		<link>http://labs.alducente.com/2010/12/20/as3-sierpinski-triangle/</link>
		<comments>http://labs.alducente.com/2010/12/20/as3-sierpinski-triangle/#comments</comments>
		<pubDate>Mon, 20 Dec 2010 05:00:36 +0000</pubDate>
		<dc:creator>alducente</dc:creator>
				<category><![CDATA[AS3]]></category>
		<category><![CDATA[Actionscript 3]]></category>
		<category><![CDATA[BitmapData]]></category>
		<category><![CDATA[experiments]]></category>
		<category><![CDATA[Flash]]></category>
		<category><![CDATA[Sierpinski]]></category>
		<category><![CDATA[Triangle]]></category>

		<guid isPermaLink="false">http://labs.alducente.com/?p=212</guid>
		<description><![CDATA[Sometimes I get the urge to create something&#8230;anything. Generating fractals from code is a good exercise in those situations and this time I decided to go with the simple Sierpinski Triangle. Play with the two values in the demo below and hit the &#8220;Draw&#8221; button to redraw the triangle. Here&#8217;s a quick explanation on the [...]]]></description>
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		<slash:comments>2</slash:comments>
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		<item>
		<title>Trails</title>
		<link>http://labs.alducente.com/2010/12/13/trails/</link>
		<comments>http://labs.alducente.com/2010/12/13/trails/#comments</comments>
		<pubDate>Mon, 13 Dec 2010 06:35:24 +0000</pubDate>
		<dc:creator>alducente</dc:creator>
				<category><![CDATA[AS3]]></category>
		<category><![CDATA[Actionscript 3]]></category>
		<category><![CDATA[BitmapData]]></category>
		<category><![CDATA[experiments]]></category>
		<category><![CDATA[Flash]]></category>
		<category><![CDATA[Trails]]></category>

		<guid isPermaLink="false">http://labs.alducente.com/?p=198</guid>
		<description><![CDATA[I had a bit of play time this weekend and decided to play more with BitmapData. I&#8217;ve been working with it a lot recently, doing some experiments with webcams, so I wanted to take an opportunity to go back to the drawing board and just see what works and what doesn&#8217;t. Here&#8217;s a little something [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>AS3 Edge Detection Demo</title>
		<link>http://labs.alducente.com/2009/11/11/as3-edge-detection-demo/</link>
		<comments>http://labs.alducente.com/2009/11/11/as3-edge-detection-demo/#comments</comments>
		<pubDate>Thu, 12 Nov 2009 01:04:57 +0000</pubDate>
		<dc:creator>alducente</dc:creator>
				<category><![CDATA[AS3]]></category>
		<category><![CDATA[Actionscript 3]]></category>
		<category><![CDATA[BitmapData]]></category>
		<category><![CDATA[DIFFERENCE]]></category>
		<category><![CDATA[edge detection]]></category>
		<category><![CDATA[experiments]]></category>
		<category><![CDATA[Webcam]]></category>

		<guid isPermaLink="false">http://labs.alducente.com/?p=178</guid>
		<description><![CDATA[So after posting about a technique to detect edges in AS3, I decided to take a little bit of time today to actually play with it. Check out the vid: The demo used BitmapData along with the &#8220;difference&#8221; blendmode to extract the edges from the webcam feed. Using BitmapData&#8217;s hitTest method, I was able to [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Flash Shape Detection</title>
		<link>http://labs.alducente.com/2009/11/10/flash-shape-detection/</link>
		<comments>http://labs.alducente.com/2009/11/10/flash-shape-detection/#comments</comments>
		<pubDate>Wed, 11 Nov 2009 02:08:41 +0000</pubDate>
		<dc:creator>alducente</dc:creator>
				<category><![CDATA[AS3]]></category>
		<category><![CDATA[Actionscript 3]]></category>
		<category><![CDATA[BitmapData]]></category>
		<category><![CDATA[Flash]]></category>
		<category><![CDATA[gesture]]></category>
		<category><![CDATA[shape detection]]></category>

		<guid isPermaLink="false">http://labs.alducente.com/?p=166</guid>
		<description><![CDATA[I&#8217;ve playing with a lot of motion/gesture detection in flash lately, and this week I got into some shape detection based on user input. In this demo, I used the &#8220;difference&#8221; blend mode to compare the user&#8217;s drawing with a bunch of vector shapes that I&#8217;ve baked in to the swf file. Press down, drag, [...]]]></description>
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