How Facebook Sped Up Photo Loading in iOS App, News Feed for Android

Facebook users and engineers always feel the need -- the need for speed -- and the social network detailed how it fulfilled that need for photos on its iOS app and News Feed in its Android app

TruckLightRailsInTunnel650Facebook users and engineers always feel the need — the need for speed — and the social network detailed how it fulfilled that need for photos on its iOS application and News Feed in its Android app in separate blog posts.

Facebook adopted a technique known as progressive JPEG to speed up photo loading in its iOS app, describing the process in a post on its engineering blog as an image format that stores multiple, individual “scans” of a photo, each with an increasing level of detail.

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