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#.apple file format code#
The format needs to be friendly to hardware accelerated and code and decode operations on modern CPUs, GPUs and ESPs. It needs to be competitive with natural images, but also when compressing text or graphics. The compression needs to be state-of-the-art both on the front. Here is a list of features Apple considered paramount. The new format also needs to be flexible and extensible to cope with the ever-changing photography ecosystem.
#.apple file format professional#
It needs to be friendly to professional photography tools, the web and the cloud. The new format needs to support all the features available in JPEG, but at the same time provide better performance. Apple invested a lot of time to find a successor for JPEG and many options were evaluated. And here is HEIF for comparison in the timeline, which has been finalized in 2015. Since then, several new compression standards have been developed. As you can see in the slide, JPEG has been finalized as a standard in 1992, a quarter of a century ago. JPEG is really starting to show in its years, especially in terms of compression efficiency when compared to recent advancements.
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Let's look at history map of compression standards developed by JPEG and ITU/MPEG. JPEG unfortunately does not support animation. Several new compression algorithms have been developed in recent years that can shrink the file size much more than JPEG and still maintaining the same objective and subjective quality.Īuxiliary images like alpha or depth are not easily supported.Īlso, in recent years new ways to present and display animated images have been developed. JPEG though has several limitations, among those are the compression efficiency.
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Cloud services also use JPEG because of its universal support. JPEG is still the most popular compression technology for images only present on the web and on consumer electronics devices, such as the DSLR cameras, point-and-shoot cameras and cell phones. We will then present the reasons why Apple thinks HEVC is the right codec to be used within the HEIF file format. We will explain why we think HEIF is the answer to those requirements and we will get to know some of the flexible tools that HEIF implements. We will go through the requirements that Apple identified as mandatory for a new image format. During the talk, we will briefly touch upon the current de facto standard for image compression, a standard that everybody's familiar with JPEG. My name is Davide Concion and I manage the Image Compression Team at Apple. In this talk you will learn about the lower level details of the new High Efficiency Image File format or HEIF and the many advantages that this new file format standard affords.