Kelly Thompson writes for 500px about Apple’s upcoming transition from JPEG to the HEVC-based HEIF for photos across all its platforms:
JPEG is 25 years old and showing its age. Compression has become a big deal as we’ve moved to 4K and HDR video, and HEVC was developed to compress those huge video streams. Luckily HEVC also has a still image profile. The format doesn’t just beat JPEG, JPEG 2000, JPEG XR, and WebP—it handily crushes them. It claims a 2 to 1 increase in compression over JPEG at similar quality levels. In our tests, we’ve seen even better levels, depending on the subject of the image.
By using it internally on the camera, it means storing twice as many images in the same space. People with full iPhones are weeping with joy.
Think about it for a second—if we could reduce every picture delivered on the web by two times and have it look the same (or better)… game changer.
A move away from JPEG is significant, but Apple clearly has good reason for making the transition now. The recent massive increases of photos taken by the average user have led to persistently-scarce storage space. Apple has responded in the past year by increasing the base storage of new iPhones and iPads, but storage bumps are only a bandaid fix – adopting HEIF should make a long-term difference.