Flex3学习轨迹：将彩色照片转换成黑白照片

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" fontSize="12" >
<mx:Script>
<![CDATA[
private var rLum:Number = 0.2225;
private var gLum:Number = 0.7169;
private var bLum:Number = 0.0606;

[Bindable]
private var bwMatrix:Array = [rLum, gLum, bLum, 0, 0,
rLum, gLum, bLum, 0, 0,
rLum, gLum, bLum, 0, 0,
0, 0, 0, 1, 0];

[Bindable]
[Embed('assets/image.jpg')]
private var image1:Class;

]]>
</mx:Script>
<mx:ColorMatrixFilter id="cmf" matrix="{bwMatrix}" />
<mx:Panel title="实现将彩色图片转换为黑白色" width="360" height="240"
verticalAlign="middle" horizontalAlign="center">
<mx:HBox>
<mx:VBox>
<mx:Label text="原始图片" />
<mx:Image source="{image1}" />
</mx:VBox>
<mx:VBox>
<mx:Label text="黑白图片" />
<mx:Image source="{image1}" filters="{[cmf]}" />
</mx:VBox>
</mx:HBox>
</mx:Panel>
</mx:Application>