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ipa: rkisp1: awb: Apply gains based on default colour temperature on start

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The colour gains are initialized with a default value of 1. Improve that
by querying the auto white balance algorithm for the gains for a default
colour temperature. This is still not based on measurements, but it is
still better than the current implementation. If the algorithm doesn't
implement mapping from colour temperature to gains, it will internally
fallback to 1.0.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
This commit is contained in:
Stefan Klug
2025-01-23 12:41:01 +01:00
parent 7a4012ec79
commit bab4db2d6d
1 changed files with 2 additions and 1 deletions
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src/ipa/rkisp1/algorithms/awb.cpp
+2 -1
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@@ -125,7 +125,8 @@ int Awb::configure(IPAContext &context,
const IPACameraSensorInfo &configInfo)
{
context.activeState.awb.gains.manual = RGB<double>{ 1.0 };
context.activeState.awb.gains.automatic = RGB<double>{ 1.0 };
context.activeState.awb.gains.automatic =
awbAlgo_->gainsFromColourTemperature(kDefaultColourTemperature);
context.activeState.awb.autoEnabled = true;
context.activeState.awb.temperatureK = kDefaultColourTemperature;