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| author | Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> | 2021-09-30 11:05:16 +0200 |
|---|---|---|
| committer | Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> | 2021-10-22 07:25:42 +0200 |
| commit | 59687683a16c64c6821db89c7a1be35b161bf917 (patch) | |
| tree | affc4b4e0e5afb4c662a6bc28f88f833305b9bd9 /src/ipa/ipu3/algorithms/awb.h | |
| parent | f407027451bd5b031055e6fc1de0c29163bbe531 (diff) | |
ipa: ipu3: awb: Set a threshold for the green saturation
We can have a saturation ratio per cell, giving the percentage of pixels
over a threshold within a cell where 100% is set to 0xff.
The parameter structure 'ipu3_uapi_awb_config_s' contains four fields to
set the threshold, one per channel.
The blue field is also used to configure the ImgU and make it calculate
the saturation ratio or not.
Set a green value saturated when it is more than 230 (90% of the maximum
value 255, coded as 8191). As this is the only channel used for AGC,
there is no need to apply it to the other ones.
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'src/ipa/ipu3/algorithms/awb.h')
| -rw-r--r-- | src/ipa/ipu3/algorithms/awb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/ipa/ipu3/algorithms/awb.h b/src/ipa/ipu3/algorithms/awb.h index 3b81f600..0c81e39e 100644 --- a/src/ipa/ipu3/algorithms/awb.h +++ b/src/ipa/ipu3/algorithms/awb.h @@ -70,6 +70,7 @@ private: void clearAwbStats(); void awbGreyWorld(); uint32_t estimateCCT(double red, double green, double blue); + static constexpr uint16_t threshold(float value); std::vector<RGB> zones_; Accumulator awbStats_[kAwbStatsSizeX * kAwbStatsSizeY]; |