Appendix 4

Luminance and Chrominance Compression

The number 444 refers to the luminance (light) and chrominance (color) compression (brightness and color) (see Figure A4.1).


FIGURE A4.1 Chroma-luminance bandwidth illustration, where a 4:4:4 has no subsampling (each pixel contains the full luminance and chrominance value). In a 4:2:2 subsampling, half the pixels contain full luminance and chrominance value, while the remaining half contain luminance. (

Get DSLR Cinema, 2nd Edition now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.