4.2

Apple ProRes for 4:4:4:4 image sources (including alpha
channels), with a very high data rate to preserve the detail in
high-dynamic-range imagery generated by today’s highest-
quality digital image sensors. Apple ProRes 4444 XQ
preserves dynamic ranges several times greater than the
dynamic range of Rec 709 imagery—even against the rigors of
extreme visual effects processing, in which tone-scale blacks
or highlights are stretched significantly. Like standard
Apple ProRes 4444, this codec supports up to 12 bits per
image channel and up to 16 bits for the alpha channel.
Apple ProRes 4444 XQ features a target data rate of
approximately 500 Mbps for 4:4:4 sources at 1920 x 1080 and
29.97 fps.
Apple ProRes 4444: An extremely high-quality version of
Apple ProRes for 4:4:4:4 image sources (including alpha
channels). This codec features full-resolution, mastering-
quality 4:4:4:4 RGBA color and visual fidelity that is
perceptually indistinguishable from the original material.
Apple ProRes 4444 is a high-quality solution for storing and
exchanging motion graphics and composites, with excellent
multigeneration performance and a mathematically lossless
alpha channel up to 16 bits. This codec features a remarkably
low data rate compared to uncompressed 4:4:4 HD, with a
target data rate of approximately 330 Mbps for 4:4:4 sources
at 1920 x 1080 and 29.97 fps. It also offers direct encoding of,
and decoding to, both RGB and Y’C C pixel formats.
Apple ProRes 422 HQ: A higher-data-rate version of
Apple ProRes 422 that preserves visual quality at the same
high level as Apple ProRes 4444, but for 4:2:2 image sources.
With widespread adoption across the video post-production
industry, Apple ProRes 422 HQ offers visually lossless
B R