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I have a small IPhone app that I am working on and I am displaying an image with a UIImageView. I am scaling it up using the Aspect Fit mode. I would like to have the image scale up with no interpolation/smoothing (I want it to look pixellated). Is there any way I can change this behavior?
A little more general question would be can I implement my own scaling algorithm, or are there other built in ones that I can select?
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By default, we get image interpolation, which is where iOS blends the pixels so smoothly you might not even realize they have been stretched at all.
Show activity on this post. extension UIImage { func imageResize (sizeChange:CGSize)-> UIImage{ let hasAlpha = true let scale: CGFloat = 0.0 // Use scale factor of main screen UIGraphicsBeginImageContextWithOptions(sizeChange, ! hasAlpha, scale) self. draw(in: CGRect(origin: CGPoint.
You would need to set the magnificationFilter property on the view's layer to the nearest neighbour filter:
[[view layer] setMagnificationFilter:kCAFilterNearest]
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