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	<title>Carlo Alducente&#039;s Blog &#187; DIFFERENCE</title>
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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 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>BlendMode.DIFFERENCE and why it&#8217;s awesome.</title>
		<link>http://labs.alducente.com/2009/10/16/blendmode-difference-and-why-its-awesome/</link>
		<comments>http://labs.alducente.com/2009/10/16/blendmode-difference-and-why-its-awesome/#comments</comments>
		<pubDate>Fri, 16 Oct 2009 15:01:48 +0000</pubDate>
		<dc:creator>alducente</dc:creator>
				<category><![CDATA[AS3]]></category>
		<category><![CDATA[Actionscript 3]]></category>
		<category><![CDATA[BlendMode]]></category>
		<category><![CDATA[DIFFERENCE]]></category>
		<category><![CDATA[edge detection]]></category>
		<category><![CDATA[Webcam]]></category>

		<guid isPermaLink="false">http://labs.alducente.com/?p=135</guid>
		<description><![CDATA[Straight from the CS3 Help section: Compares the constituent colors of the display object with the colors of its background, and subtracts the darker of the values of the two constituent colors from the lighter value. This setting is commonly used for more vibrant colors. For example, if the display object has a pixel with [...]]]></description>
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		<slash:comments>2</slash:comments>
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