Wednesday, May 15, 2019 [Tweets] [Favorites]

Image Resizing Techniques

Mattt Thompson:

There are a number of different approaches to resizing an image, each with different capabilities and performance characteristics. And the examples we’re looking at in this article span frameworks both low- and high-level, from Core Graphics, vImage, and Image I/O to Core Image and UIKit[…]

Jeff Nadeau:

If you want to cache a downsampled rendition of some source image, try a block-based NSImage. It’ll cache for you, and it’ll maintain it in the right backing format for display. Pretty low effort for broadly desirable performance characteristics.

1 Comment

Should have compared memory usagecas well: ImagecIO is the only one that can resize 100MP images without crashing because of using too much memory

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