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Can't get gaussian blur to match Sketch

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I am trying to replicate a Gaussian blur in swift in my application, but the core image filter doesn't seem to act the same way as the Sketch Gaussian blur. I need the blur to cover the UIImage as well as extend past the bound of the UIImage and blur the area around it. When I try to use CIFilter, it either clips the blur to the edges of the image or insets the image and makes it appear much smaller than it is. Is there a better way to make a Gaussian blur that will match the Sketch functionality?

ios swift blur gaussianblur

share|improve this question

asked Mar 27 at 0:28

Jesse SeidmanJesse Seidman

4

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Use a visual effect view, it will create a blur using the content around it's bounds too.
  
  – EmilioPelaez
  Mar 27 at 0:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Using a visual effects view will make the edges of the blur visible, I need the edges to fade out softly without noticing the edges
  
  – Jesse Seidman
  Mar 27 at 0:44
  

  
  
  
  

add a comment | 

0

I am trying to replicate a Gaussian blur in swift in my application, but the core image filter doesn't seem to act the same way as the Sketch Gaussian blur. I need the blur to cover the UIImage as well as extend past the bound of the UIImage and blur the area around it. When I try to use CIFilter, it either clips the blur to the edges of the image or insets the image and makes it appear much smaller than it is. Is there a better way to make a Gaussian blur that will match the Sketch functionality?

ios swift blur gaussianblur

share|improve this question

asked Mar 27 at 0:28

Jesse SeidmanJesse Seidman

4

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Use a visual effect view, it will create a blur using the content around it's bounds too.
  
  – EmilioPelaez
  Mar 27 at 0:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Using a visual effects view will make the edges of the blur visible, I need the edges to fade out softly without noticing the edges
  
  – Jesse Seidman
  Mar 27 at 0:44
  

  
  
  
  

add a comment | 

I am trying to replicate a Gaussian blur in swift in my application, but the core image filter doesn't seem to act the same way as the Sketch Gaussian blur. I need the blur to cover the UIImage as well as extend past the bound of the UIImage and blur the area around it. When I try to use CIFilter, it either clips the blur to the edges of the image or insets the image and makes it appear much smaller than it is. Is there a better way to make a Gaussian blur that will match the Sketch functionality?

ios swift blur gaussianblur

share|improve this question

asked Mar 27 at 0:28

Jesse SeidmanJesse Seidman

4

share|improve this question

asked Mar 27 at 0:28

Jesse SeidmanJesse Seidman

4

share|improve this question

asked Mar 27 at 0:28

Jesse SeidmanJesse Seidman

4

asked Mar 27 at 0:28

Jesse SeidmanJesse Seidman

4

asked Mar 27 at 0:28

Jesse SeidmanJesse Seidman

4