diff options
Diffstat (limited to 'src/ipa/rkisp1/algorithms/awb.cpp')
| -rw-r--r-- | src/ipa/rkisp1/algorithms/awb.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/ipa/rkisp1/algorithms/awb.cpp b/src/ipa/rkisp1/algorithms/awb.cpp index eb32cd72..3349948a 100644 --- a/src/ipa/rkisp1/algorithms/awb.cpp +++ b/src/ipa/rkisp1/algorithms/awb.cpp @@ -280,10 +280,11 @@ void Awb::process(IPAContext &context, /* * Estimate the red and blue gains to apply in a grey world. The green - * gain is hardcoded to 1.0. + * gain is hardcoded to 1.0. Avoid divisions by zero by clamping the + * divisor to a minimum value of 1.0. */ - double redGain = greenMean / (redMean + 1); - double blueGain = greenMean / (blueMean + 1); + double redGain = greenMean / std::max(redMean, 1.0); + double blueGain = greenMean / std::max(blueMean, 1.0); /* * Clamp the gain values to the hardware, which expresses gains as Q2.8 |