Blurry image animation - wpf

Question

On application startup, I'd like to do a small animation: a logo should transform from large and blurry to normal and clear. This is what I have so far:
<Grid>
<Border>
<Image Height="250" Name="AnimationLogo" Source="Logo.png">
</Image>
</Border>
<Grid.Triggers>
<EventTrigger RoutedEvent="Window.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Height" Storyboard.TargetName="AnimationLogo">
<LinearDoubleKeyFrame Value="50" KeyTime="0:0:5.0"></LinearDoubleKeyFrame>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Grid.Triggers>
I know that I can animate a static blurry like this:
<Image.Effect>
<BlurEffect Radius="20"/>
</Image.Effect>
But I could not manage to animate this BlurEffect on the image. There is no Property "Radius" on the image that I could use in the animation.
I'd be thankful for a hint or a good link!

Answer 1

You can try naming the BlurEffect
<Image.Effect>
<BlurEffect Radius="20" x:Name="blurEffect"/>
</Image.Effect>
And animation for TargetName blurEffect
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Radius"
Storyboard.TargetName="blurEffect">
<LinearDoubleKeyFrame Value="50" KeyTime="0:0:5.0"></LinearDoubleKeyFrame>
</DoubleAnimationUsingKeyFrames>

Answer 2

It is possible to Animate Blur on Loaded event usig the WPF Transitionz library.
A simple code example:
<Window x:Class="WpfApplication15.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:tz="http://schemas.abtsoftware.co.uk/transitionz"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525"
WindowStartupLocation="CenterScreen">
<Grid>
<TextBlock Foreground="#AAA" Margin="10" TextWrapping="Wrap" Text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer nec odio. Praesent libero. Sed cursus ante dapibus diam. Sed nisi. Nulla quis sem at nibh elementum imperdiet. Duis sagittis ipsum. Praesent mauris. Fusce nec tellus sed augue semper porta. Mauris massa. Vestibulum lacinia arcu eget nulla. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Curabitur sodales ligula in libero. Sed dignissim lacinia nunc. Curabitur tortor. Pellentesque nibh. Aenean quam. In scelerisque sem at dolor. Maecenas mattis. Sed convallis tristique sem. Proin ut ligula vel nunc egestas porttitor. Morbi lectus risus, iaculis vel, suscipit quis, luctus non, massa. Fusce ac turpis quis ligula lacinia aliquet. Mauris ipsum. Nulla metus metus, ullamcorper vel, tincidunt sed, euismod in, nibh. Quisque volutpat condimentum velit. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Nam nec ante. Sed lacinia, urna non tincidunt mattis, tortor neque adipiscing diam, a cursus ipsum ante quis turpis. Nulla facilisi. Ut fringilla. Suspendisse potenti. Nunc feugiat mi a tellus consequat imperdiet. Vestibulum sapien. Proin quam. Etiam ultrices. Suspendisse in justo eu magna luctus suscipit. Sed lectus. Integer euismod lacus luctus magna. Quisque cursus, metus vitae pharetra auctor, sem massa mattis sem, at interdum magna augue eget diam. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Morbi lacinia molestie dui. Praesent blandit dolor. Sed non quam. In vel mi sit amet augue congue elementum. Morbi in ipsum sit amet pede facilisis laoreet. Donec lacus nunc, viverra nec, blandit vel, egestas et, augue. Vestibulum tincidunt malesuada tellus. Ut ultrices ultrices enim. Curabitur sit amet mauris. Morbi in dui quis est pulvinar ullamcorper. "
tz:Transitionz.Opacity="{tz:OpacityParams Duration=2000, From=0, To=1, TransitionOn=Loaded}"
tz:Transitionz.Blur="{tz:BlurParams Duration=2000, From=20, To=0, TransitionOn=Loaded}"/>
</Grid>
</Window>
Which results in this animation on loaded of the window.
It is also possible to animate blur on property changed by binding the tz:Transitions.Blur to a Property of type BlurParams in the ViewModel.