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-rw-r--r--src/ipa/rkisp1/algorithms/awb.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/ipa/rkisp1/algorithms/awb.cpp b/src/ipa/rkisp1/algorithms/awb.cpp
index e491cf75..694d97cc 100644
--- a/src/ipa/rkisp1/algorithms/awb.cpp
+++ b/src/ipa/rkisp1/algorithms/awb.cpp
@@ -207,6 +207,15 @@ void Awb::process(IPAContext &context,
double greenMean = 1.1636 * yMean - 0.4045 * cbMean - 0.7949 * crMean;
double blueMean = 1.1636 * yMean + 1.9912 * cbMean - 0.0250 * crMean;
+ /*
+ * The ISP computes the AWB means after applying the colour gains,
+ * divide by the gains that were used to get the raw means from the
+ * sensor.
+ */
+ redMean /= frameContext.awb.gains.red;
+ greenMean /= frameContext.awb.gains.green;
+ blueMean /= frameContext.awb.gains.blue;
+
frameContext.awb.temperatureK = estimateCCT(redMean, greenMean, blueMean);
/* Estimate the red and blue gains to apply in a grey world. */