| Message ID | 20250815102945.1602071-16-stefan.klug@ideasonboard.com |
|---|---|
| State | New |
| Headers | show |
| Series |
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| Related | show |
Morning Stefan On 15/08/2025 11:29, Stefan Klug wrote: > The upcoming WDR algorithm needs to know the effective y target (Which > includes the current ExposureValue). Add a accessor for that. > > Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> > > --- Looks ok: Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> > > Changes in v3: > - Added this patch > --- > src/ipa/libipa/agc_mean_luminance.cpp | 16 ++++++++++++++-- > src/ipa/libipa/agc_mean_luminance.h | 2 ++ > 2 files changed, 16 insertions(+), 2 deletions(-) > > diff --git a/src/ipa/libipa/agc_mean_luminance.cpp b/src/ipa/libipa/agc_mean_luminance.cpp > index 6c7cf0038b16..2bfafe9b2d02 100644 > --- a/src/ipa/libipa/agc_mean_luminance.cpp > +++ b/src/ipa/libipa/agc_mean_luminance.cpp > @@ -458,8 +458,7 @@ void AgcMeanLuminance::setLimits(utils::Duration minExposureTime, > */ > double AgcMeanLuminance::estimateInitialGain() const > { > - double yTarget = std::min(relativeLuminanceTarget_ * exposureCompensation_, > - kMaxRelativeLuminanceTarget); > + double yTarget = effectiveYTarget(); > double yGain = 1.0; > > /* > @@ -521,6 +520,19 @@ double AgcMeanLuminance::constraintClampGain(uint32_t constraintModeIndex, > return gain; > } > > +/** > + * \brief Get the currently effective y target > + * > + * This function return the current y target including exposure compensation. > + * > + * \return The y target value > + */ > +double AgcMeanLuminance::effectiveYTarget() const > +{ > + return std::min(relativeLuminanceTarget_ * exposureCompensation_, > + kMaxRelativeLuminanceTarget); > +} > + > /** > * \brief Apply a filter on the exposure value to limit the speed of changes > * \param[in] exposureValue The target exposure from the AGC algorithm > diff --git a/src/ipa/libipa/agc_mean_luminance.h b/src/ipa/libipa/agc_mean_luminance.h > index fbb526f6ae8e..950b7b893754 100644 > --- a/src/ipa/libipa/agc_mean_luminance.h > +++ b/src/ipa/libipa/agc_mean_luminance.h > @@ -72,6 +72,8 @@ public: > calculateNewEv(uint32_t constraintModeIndex, uint32_t exposureModeIndex, > const Histogram &yHist, utils::Duration effectiveExposureValue); > > + double effectiveYTarget() const; > + > void resetFrameCount() > { > frameCount_ = 0;
Quoting Stefan Klug (2025-08-15 19:29:35) > The upcoming WDR algorithm needs to know the effective y target (Which > includes the current ExposureValue). Add a accessor for that. s/a /an / > > Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> > > --- > > Changes in v3: > - Added this patch > --- > src/ipa/libipa/agc_mean_luminance.cpp | 16 ++++++++++++++-- > src/ipa/libipa/agc_mean_luminance.h | 2 ++ > 2 files changed, 16 insertions(+), 2 deletions(-) > > diff --git a/src/ipa/libipa/agc_mean_luminance.cpp b/src/ipa/libipa/agc_mean_luminance.cpp > index 6c7cf0038b16..2bfafe9b2d02 100644 > --- a/src/ipa/libipa/agc_mean_luminance.cpp > +++ b/src/ipa/libipa/agc_mean_luminance.cpp > @@ -458,8 +458,7 @@ void AgcMeanLuminance::setLimits(utils::Duration minExposureTime, > */ > double AgcMeanLuminance::estimateInitialGain() const > { > - double yTarget = std::min(relativeLuminanceTarget_ * exposureCompensation_, > - kMaxRelativeLuminanceTarget); > + double yTarget = effectiveYTarget(); > double yGain = 1.0; > > /* > @@ -521,6 +520,19 @@ double AgcMeanLuminance::constraintClampGain(uint32_t constraintModeIndex, > return gain; > } > > +/** > + * \brief Get the currently effective y target > + * > + * This function return the current y target including exposure compensation. s/return/returns/ Reviewed-by: Paul ELder <paul.elder@ideasonboard.com> > + * > + * \return The y target value > + */ > +double AgcMeanLuminance::effectiveYTarget() const > +{ > + return std::min(relativeLuminanceTarget_ * exposureCompensation_, > + kMaxRelativeLuminanceTarget); > +} > + > /** > * \brief Apply a filter on the exposure value to limit the speed of changes > * \param[in] exposureValue The target exposure from the AGC algorithm > diff --git a/src/ipa/libipa/agc_mean_luminance.h b/src/ipa/libipa/agc_mean_luminance.h > index fbb526f6ae8e..950b7b893754 100644 > --- a/src/ipa/libipa/agc_mean_luminance.h > +++ b/src/ipa/libipa/agc_mean_luminance.h > @@ -72,6 +72,8 @@ public: > calculateNewEv(uint32_t constraintModeIndex, uint32_t exposureModeIndex, > const Histogram &yHist, utils::Duration effectiveExposureValue); > > + double effectiveYTarget() const; > + > void resetFrameCount() > { > frameCount_ = 0; > -- > 2.48.1 >
diff --git a/src/ipa/libipa/agc_mean_luminance.cpp b/src/ipa/libipa/agc_mean_luminance.cpp index 6c7cf0038b16..2bfafe9b2d02 100644 --- a/src/ipa/libipa/agc_mean_luminance.cpp +++ b/src/ipa/libipa/agc_mean_luminance.cpp @@ -458,8 +458,7 @@ void AgcMeanLuminance::setLimits(utils::Duration minExposureTime, */ double AgcMeanLuminance::estimateInitialGain() const { - double yTarget = std::min(relativeLuminanceTarget_ * exposureCompensation_, - kMaxRelativeLuminanceTarget); + double yTarget = effectiveYTarget(); double yGain = 1.0; /* @@ -521,6 +520,19 @@ double AgcMeanLuminance::constraintClampGain(uint32_t constraintModeIndex, return gain; } +/** + * \brief Get the currently effective y target + * + * This function return the current y target including exposure compensation. + * + * \return The y target value + */ +double AgcMeanLuminance::effectiveYTarget() const +{ + return std::min(relativeLuminanceTarget_ * exposureCompensation_, + kMaxRelativeLuminanceTarget); +} + /** * \brief Apply a filter on the exposure value to limit the speed of changes * \param[in] exposureValue The target exposure from the AGC algorithm diff --git a/src/ipa/libipa/agc_mean_luminance.h b/src/ipa/libipa/agc_mean_luminance.h index fbb526f6ae8e..950b7b893754 100644 --- a/src/ipa/libipa/agc_mean_luminance.h +++ b/src/ipa/libipa/agc_mean_luminance.h @@ -72,6 +72,8 @@ public: calculateNewEv(uint32_t constraintModeIndex, uint32_t exposureModeIndex, const Histogram &yHist, utils::Duration effectiveExposureValue); + double effectiveYTarget() const; + void resetFrameCount() { frameCount_ = 0;
The upcoming WDR algorithm needs to know the effective y target (Which includes the current ExposureValue). Add a accessor for that. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> --- Changes in v3: - Added this patch --- src/ipa/libipa/agc_mean_luminance.cpp | 16 ++++++++++++++-- src/ipa/libipa/agc_mean_luminance.h | 2 ++ 2 files changed, 16 insertions(+), 2 deletions(-)