Intra-frame coding: Difference between revisions

Revision as of 22:10, 12 January 2022

Revision as of 03:44, 3 February 2022

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Data is usually read from a video camera or a video card in the [[YCbCr]] data format (often informally called [[YUV]] for brevity). The coding process varies greatly depending on which type of encoder is used (e.g., [[JPEG]] or [[H.264/MPEG-4 AVC|H.264]]), but the most common steps usually include: partitioning into [[macroblock]]s, transformation (e.g., using a [[Discrete cosine transform|DCT]] or [[Discrete wavelet transform|wavelet]]), [[Quantization (image processing)|quantization]] and [[entropy encoding]].

== AppplicationsApplications ==

It is used in codecs like [[ProRes 422|ProRes]]: a [[group of pictures]] codec without [[inter frame]]s.