[0/3] libcamera: Add gamma control for rkisp1
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Message ID 20240516124150.219054-1-stefan.klug@ideasonboard.com
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  • libcamera: Add gamma control for rkisp1
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Stefan Klug May 16, 2024, 12:41 p.m. UTC 
This patchset adds a gamma algorithm and the corresponding control for rkisp1.
A camera gamma of roughly 2.2 is necessary to produce correct output images on
a standard monitor and to comply with sRGB.

Further information is available here:
https://en.wikipedia.org/wiki/SRGB
https://www.cambridgeincolour.com/tutorials/gamma-correction.htm


Stefan Klug (3):
  ipa: rkisp1: Add gamma algorithm
  libcamera: Add gamma control id
  pipeline: rkisp1: Implement gamma control

 src/ipa/rkisp1/algorithms/goc.cpp     | 143 ++++++++++++++++++++++++++
 src/ipa/rkisp1/algorithms/goc.h       |  41 ++++++++
 src/ipa/rkisp1/algorithms/meson.build |   1 +
 src/ipa/rkisp1/ipa_context.h          |   4 +
 src/ipa/rkisp1/rkisp1.cpp             |   3 +-
 src/libcamera/control_ids_core.yaml   |   6 ++
 6 files changed, 197 insertions(+), 1 deletion(-)
 create mode 100644 src/ipa/rkisp1/algorithms/goc.cpp
 create mode 100644 src/ipa/rkisp1/algorithms/goc.h