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Last active February 29, 2020 06:15
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Image Blurring – Accelerate vs. CoreImage
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gistfile1.md

1.3MB png 640x1136

  • Accelerate 179ms every time
  • CoreImage 298ms first time 147ms subsequent times @1x scale
  • CoreImage 262ms first time 126ms subsequent times @0.5x scale
  • CoreImage 260ms first time 118ms subsequent times @0.25x scale

(Lower on 0.5x probably because of whole number for blur radius)

View Hierarchy via snapshot

  • Accelerate 141ms every time
  • CoreImage 196ms first time 60ms subsequent times @0.5x

Hardware

All tests done on an iPhone 5 running iOS [redacted] beta 3.

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