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Possible Duplicate:
iOS images in a bubble effect

I want to add a fish eye filter effect on UIImage in iphone App. on googling i get the effect like spherical image effect with vignette image effect. I have completed vignette effect but can't implement Spherical Image effect. Can any one suggest how to implement this.

Thanks

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Satish Azad
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  • This is nice task, but a though one – AlexWien Dec 01 '12 at 16:41
  • It doesn't look like the CIFilters you need are yet available on iOS. You could try writing a glsl shader to do it. – user1118321 Dec 01 '12 at 17:13
  • You could use the CIBumpDistortion effect to get a similar effect with some tweaking. https://developer.apple.com/library/mac/documentation/graphicsimaging/reference/CoreImageFilterReference/Reference/reference.html#//apple_ref/doc/filter/ci/CIBumpDistortion – Metabble Dec 01 '12 at 21:12

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