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HEIC (High Efficiency Image Container)
Apple's standard for high-quality, space-saving mobile photography.
HEIC (High Efficiency Image Container) is the default image format for iPhones and iPads. Introduced by Apple in 2017 (iOS 11), it is based on the HEVC (H.265) video compression standard. HEIC was designed to solve a specific problem: smartphone cameras were capturing more detail than ever, filling up storage space rapidly. HEIC files are roughly half the size of JPEGs with equivalent quality, effectively doubling the number of photos a user can store on their device. While technically superior to JPEG, HEIC is hindered by patent licensing issues, which has prevented it from being supported natively in web browsers like Chrome and Firefox. It remains primarily a storage and capture format rather than a web delivery format.
HEIC is a container format (based on ISO Base Media File Format) that wraps HEVC-encoded image data. Because it is a container, a single .heic file can hold multiple images (like a burst shot or a Live Photo), audio, and depth map data for portrait mode effects. It supports up to 16-bit color, enabling it to capture the wide color gamut (P3) used by Apple's displays and cameras. This is a significant upgrade over JPEG's 8-bit sRGB limitation.
The HEIF standard was finalized by MPEG in 2015. Apple adopted it in 2017, instantly making it one of the most common image formats in the world by volume of photos taken. Microsoft added support to Windows 10 via an extension, and Android added native support in version 10 (2019).
Bitmap Image File
The classic uncompressed Windows image format.
BMP (Bitmap) is a raster graphics image file format used to store bitmap digital images, independently of the display device. It is one of the oldest image formats still in use, historically associated with the Microsoft Windows operating system.
BMP files typically store color data for each pixel in the image without any compression. This results in very large file sizes but perfect quality and extremely fast decoding. While it supports RLE compression, it is rarely used.
Introduced with Windows 3.0 in 1990. It was the standard format for Windows wallpapers and system graphics for decades.
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