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- .. -*- coding: utf-8; mode: rst -*-
- ***************************************
- Detailed Transfer Function Descriptions
- ***************************************
- .. _xf-smpte-2084:
- Transfer Function SMPTE 2084 (V4L2_XFER_FUNC_SMPTE2084)
- =======================================================
- The :ref:`smpte2084` standard defines the transfer function used by
- High Dynamic Range content.
- Constants:
- m1 = (2610 / 4096) / 4
- m2 = (2523 / 4096) * 128
- c1 = 3424 / 4096
- c2 = (2413 / 4096) * 32
- c3 = (2392 / 4096) * 32
- Transfer function:
- L' = ((c1 + c2 * L\ :sup:`m1`) / (1 + c3 * L\ :sup:`m1`))\ :sup:`m2`
- Inverse Transfer function:
- L = (max(L':sup:`1/m2` - c1, 0) / (c2 - c3 *
- L'\ :sup:`1/m2`))\ :sup:`1/m1`
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