Blur effect problems

aaaaaand… one last request:

How would I replicate the iOS7 Control Center effect, also seen in Yahoo’s latest Weather app?

I thought the filters could be applied to display groups.

Filter effects cannot be applied to groups. You can, however, apply them to snapshots

I’m trying this syntax and no matter the value there is an extreme amount of blur and no change if I changen the radius.

[lua]local object = display.newImageRect(“test.jpg”, _W, _H)

object.fill.effect = “filter.blurGaussian”

local amount = 10

object.fill.effect.horizontal.radius = amount

object.fill.effect.vertical.radius = amount

[/lua]

Looks like this, no matter the amount specified:  UrI7nk8.png

Photoshop same image with 10 radius: 70tK0yC.png

Same problem with 

[lua]object.fill.effect = “filter.blurHorizontal”

local amount = 1

object.fill.effect.radius = amount[/lua]

Same horizontal blur no matter what amount.

Edit: Daily build 103