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libcamera: software_isp: lut: Change default Gamma to 1.0/2.2

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Change the default softisp Gamma from 0.5 to 1.0/2.2.

Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Robert Mader <robert.mader@collabora.com>
Tested-by: Hans de Goede <johannes.goede@oss.qualcomm.com> # ThinkPad T14s gen 6 (arm64) ov02c10 + X1c gen 12 ov08x40
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # Lenovo X13s
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Bryan O'Donoghue
2026-01-06 17:00:56 +00:00
committed by Kieran Bingham
parent 43180e12ba
commit 852ffae2a0
1 changed files with 1 additions and 1 deletions
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src/ipa/simple/algorithms/lut.cpp
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@@ -35,7 +35,7 @@ int Lut::configure(IPAContext &context,
[[maybe_unused]] const IPAConfigInfo &configInfo)
{
/* Gamma value is fixed */
context.configuration.gamma = 0.5;
context.configuration.gamma = 1.0 / 2.2;
context.activeState.knobs.contrast = std::optional<double>();
updateGammaTable(context);