So I used the blur effect on an image

enter image description here

But when I do that I see a weird transparent background through the effect at the top and bottom of the image. I can see this thing even sometimes when I crop the image. When I try to rotate the image, sometimes the rotated image will have the transparent background behind it which is in the shape of the image when it was not rotated.

enter image description here

And at this thing appears at the bottom edge too

enter image description here

  • If you apply a hard blur to an entire image it will feather the edges, try selecting the image first, using the selection tools, in it's entirity and then apply the blur. – Aasim Azam Feb 7 '17 at 9:53
  • what do you mean by a hard blur? I dont quite understand.. – MartianCactus Feb 7 '17 at 10:43
  • A hard blur meaning a heavy blur, when you take the slider very high. – Aasim Azam Feb 7 '17 at 11:58

If your image has a single pixel of transparency in the edge or elsewhere, that transparency spreads when the image is blurred. That is the case easily if a layer is moved.

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  • oh so when I cropped it, I might've moved it.. – MartianCactus Feb 7 '17 at 14:55

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