It is still possible to use the Baseline profile to create larger images using grid derivation. More precisely, coded image items compliant to the AVIF Baseline profile may not have a total number of pixels greater than 8,912,896, a width greater than 8,192, or a height greater than 4,352. Level 5.1 is chosen for the Baseline profile to ensure that no single coded image exceeds 8K resolution, as some decoders may not be able to handle larger images.4:2:0, 4:2:2, 4:4:4 chroma subsampling and RGBĪVIF specification defines two image profiles:.Monochrome (alpha/depth) or multi-components.Lossless compression and lossy compression.Color space signaling via CICP (ITU-T H.273 and ISO/IEC 23091-2) or ICC profiles.SDR (with sRGB / BT.709 / BT.601 or with wide color gamut).
HDR (with PQ or HLG transfer functions and BT.2020 color primaries, as part of BT.2100).In a number of tests by Netflix in 2020, AVIF showed better compression efficiency than JPEG as well as better detail preservation, fewer blocking artifacts and less color bleeding around hard edges in composites of natural images, text, and graphics.
Version 1.0.0 of the AVIF specification was finalized in February 2019. It competes with HEIC, which uses the same container format built upon ISOBMFF, but HEVC for compression. AV1 Image File Format ( AVIF) is an open, royalty-free image file format specification for storing images or image sequences compressed with AV1 in the HEIF container format.
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