| .. Permission is granted to copy, distribute and/or modify this |
| .. document under the terms of the GNU Free Documentation License, |
| .. Version 1.1 or any later version published by the Free Software |
| .. Foundation, with no Invariant Sections, no Front-Cover Texts |
| .. and no Back-Cover Texts. A copy of the license is included at |
| .. Documentation/media/uapi/fdl-appendix.rst. |
| .. |
| .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections |
| |
| .. _yuv-formats: |
| |
| *********** |
| YUV Formats |
| *********** |
| |
| YUV is the format native to TV broadcast and composite video signals. It |
| separates the brightness information (Y) from the color information (U |
| and V or Cb and Cr). The color information consists of red and blue |
| *color difference* signals, this way the green component can be |
| reconstructed by subtracting from the brightness component. See |
| :ref:`colorspaces` for conversion examples. YUV was chosen because |
| early television would only transmit brightness information. To add |
| color in a way compatible with existing receivers a new signal carrier |
| was added to transmit the color difference signals. Secondary in the YUV |
| format the U and V components usually have lower resolution than the Y |
| component. This is an analog video compression technique taking |
| advantage of a property of the human visual system, being more sensitive |
| to brightness information. |
| |
| |
| .. toctree:: |
| :maxdepth: 1 |
| |
| pixfmt-packed-yuv |
| pixfmt-grey |
| pixfmt-y10 |
| pixfmt-y12 |
| pixfmt-y14 |
| pixfmt-y10b |
| pixfmt-y10p |
| pixfmt-y16 |
| pixfmt-y16-be |
| pixfmt-y8i |
| pixfmt-y12i |
| pixfmt-uv8 |
| pixfmt-yuyv |
| pixfmt-uyvy |
| pixfmt-yvyu |
| pixfmt-vyuy |
| pixfmt-y41p |
| pixfmt-yuv420 |
| pixfmt-yuv420m |
| pixfmt-yuv422m |
| pixfmt-yuv444m |
| pixfmt-yuv410 |
| pixfmt-yuv422p |
| pixfmt-yuv411p |
| pixfmt-nv12 |
| pixfmt-nv12m |
| pixfmt-nv12mt |
| pixfmt-nv16 |
| pixfmt-nv16m |
| pixfmt-nv24 |
| pixfmt-m420 |
