diff options
Diffstat (limited to 'src/ipa/simple/soft_simple.cpp')
| -rw-r--r-- | src/ipa/simple/soft_simple.cpp | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp index ff1d8e0c..b9fb58b5 100644 --- a/src/ipa/simple/soft_simple.cpp +++ b/src/ipa/simple/soft_simple.cpp @@ -26,8 +26,9 @@ #include "libipa/camera_sensor_helper.h" -namespace libcamera { +#include "black_level.h" +namespace libcamera { LOG_DEFINE_CATEGORY(IPASoft) namespace ipa::soft { @@ -54,7 +55,8 @@ class IPASoftSimple : public ipa::soft::IPASoftInterface { public: IPASoftSimple() - : params_(nullptr), stats_(nullptr), ignoreUpdates_(0) + : params_(nullptr), stats_(nullptr), blackLevel_(BlackLevel()), + ignoreUpdates_(0) { } @@ -78,6 +80,7 @@ private: SwIspStats *stats_; std::unique_ptr<CameraSensorHelper> camHelper_; ControlInfoMap sensorInfoMap_; + BlackLevel blackLevel_; int32_t exposureMin_, exposureMax_; int32_t exposure_; @@ -255,6 +258,10 @@ void IPASoftSimple::processStats(const ControlList &sensorControls) params_->gainG = 256; params_->gamma = 0.5; + if (ignoreUpdates_ > 0) + blackLevel_.update(stats_->yHistogram); + params_->blackLevel = blackLevel_.get(); + setIspParams.emit(); /* \todo Switch to the libipa/algorithm.h API someday. */ @@ -273,18 +280,20 @@ void IPASoftSimple::processStats(const ControlList &sensorControls) * Calculate Mean Sample Value (MSV) according to formula from: * https://www.araa.asn.au/acra/acra2007/papers/paper84final.pdf */ - constexpr unsigned int yHistValsPerBin = - SwIspStats::kYHistogramSize / kExposureBinsCount; - constexpr unsigned int yHistValsPerBinMod = - SwIspStats::kYHistogramSize / - (SwIspStats::kYHistogramSize % kExposureBinsCount + 1); + const unsigned int blackLevelHistIdx = + params_->blackLevel / (256 / SwIspStats::kYHistogramSize); + const unsigned int histogramSize = + SwIspStats::kYHistogramSize - blackLevelHistIdx; + const unsigned int yHistValsPerBin = histogramSize / kExposureBinsCount; + const unsigned int yHistValsPerBinMod = + histogramSize / (histogramSize % kExposureBinsCount + 1); int exposureBins[kExposureBinsCount] = {}; unsigned int denom = 0; unsigned int num = 0; - for (unsigned int i = 0; i < SwIspStats::kYHistogramSize; i++) { + for (unsigned int i = 0; i < histogramSize; i++) { unsigned int idx = (i - (i / yHistValsPerBinMod)) / yHistValsPerBin; - exposureBins[idx] += stats_->yHistogram[i]; + exposureBins[idx] += stats_->yHistogram[blackLevelHistIdx + i]; } for (unsigned int i = 0; i < kExposureBinsCount; i++) { @@ -320,7 +329,8 @@ void IPASoftSimple::processStats(const ControlList &sensorControls) LOG(IPASoft, Debug) << "exposureMSV " << exposureMSV << " exp " << exposure_ << " again " << again_ - << " gain R/B " << params_->gainR << "/" << params_->gainB; + << " gain R/B " << params_->gainR << "/" << params_->gainB + << " black level " << params_->blackLevel; } void IPASoftSimple::updateExposure(double exposureMSV) |