[效果]Silverlight Follower effects

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使用WriteableBitmap重构：

核心代码:

WriteableBitmap wb;

wb = new WriteableBitmap(Convert.ToInt32(App.Current.Host.Content.ActualWidth), Convert.ToInt32(App.Current.Host.Content.ActualHeight));

imgOut.Source = wb;

wb.Invalidate();

wb.Render(content, null);

继续改进：