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HEIC

Explainer: Compression

Lossy and non-lossy compression explained, with examples and an outline of how JPEG compression is performed.

May 14, 2022 Macs, Technology

File Integrity 10 : Effects of length of corruption on images and ECC recovery

What difference does it make when a file has a block of 512 bytes corrupted instead of just a single byte? Results from image formats and recovery using ECC.

April 30, 2020 Macs, Technology

File Integrity 6 : Which image format is most resilient?

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Which format – alongside Camera Raw – should you store archived images in: JPEG, PNG, TIFF or Apple’s new HEIC?

April 21, 2020 Macs, Technology

What are those huge files doing in Mojave’s Desktop Pictures?

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All about Mojave’s Dynamic Desktop, whether you can get rid of those files, and how to make your own personal Dynamic Desktop.

November 26, 2018 Macs, Technology

iOS 11, or maybe 11.2.6, may change Photos’ handling of screenshots

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How the iOS Photos app may save your PNG screenshot images in JPEG format: one mystery solved, another opened.

April 21, 2018 Macs, Technology

Lost in iCloud Translation? When PNGs suddenly become JPEGs

When you take a screenshot in iOS, it is saved in PNG format. There is no option. So why do mine come across on iCloud Drive as a JPEG?

April 20, 2018 Macs, Technology

Getting going with HEIF/HEIC and HEVC image and movie formats

The first tools to write HEIF still image and HEVC movies are now starting to arrive. Do they confirm their potential? Are they ready to use yet?

October 26, 2017 General, Macs, Technology

Last Week on My Mac: In search of the missing HEIF

Apart from APFS, the features in High Sierra which I was looking forward to most were support for better image and video compression. So where are they?

October 22, 2017 Macs, Technology

convertToHEIF: a contributed script and Automator workflow to convert JPEG images to HEIF

Alex Karahalios’ shell script and Automator workflow to convert JPEG to HEIF/HEIC files.

October 20, 2017 Macs, Technology

Can macOS 10.13 High Sierra write HEIF/HEIC image files?

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Which apps can write image files using High Sierra’s wonderful new HEIF? I can’t find one, can you?

October 19, 2017 Macs, Technology
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