diff options
| author | Naushir Patuck <naush@raspberrypi.com> | 2024-10-08 09:13:16 +0100 |
|---|---|---|
| committer | Kieran Bingham <kieran.bingham@ideasonboard.com> | 2024-10-08 09:54:04 +0100 |
| commit | 692d0d66ac83ce24eaf8249687e47ef861f73b90 (patch) | |
| tree | e0659a0ff4b6be17b4129989640f780c4b05d4b9 /src/ipa/rpi | |
| parent | 3513db6cc6a6b6fb10d95c5aac5dec3645ede7b2 (diff) | |
ipa: rpi: awb: Add a const for the default colour temperature
A default CT of 4500K is used in a couple of places. Add a constexpr
value for the default CT value and use it instead.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'src/ipa/rpi')
| -rw-r--r-- | src/ipa/rpi/controller/rpi/awb.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/ipa/rpi/controller/rpi/awb.cpp b/src/ipa/rpi/controller/rpi/awb.cpp index e5d51092..65416d05 100644 --- a/src/ipa/rpi/controller/rpi/awb.cpp +++ b/src/ipa/rpi/controller/rpi/awb.cpp @@ -21,6 +21,8 @@ using namespace libcamera; LOG_DEFINE_CATEGORY(RPiAwb) +constexpr double kDefaultCT = 4500.0; + #define NAME "rpi.awb" /* @@ -215,7 +217,7 @@ void Awb::initialise() syncResults_.gainB = 1.0 / config_.ctB.eval(syncResults_.temperatureK); } else { /* random values just to stop the world blowing up */ - syncResults_.temperatureK = 4500; + syncResults_.temperatureK = kDefaultCT; syncResults_.gainR = syncResults_.gainG = syncResults_.gainB = 1.0; } prevSyncResults_ = syncResults_; @@ -717,7 +719,11 @@ void Awb::awbGrey() sumR += *ri, sumB += *bi; double gainR = sumR.G / (sumR.R + 1), gainB = sumB.G / (sumB.B + 1); - asyncResults_.temperatureK = 4500; /* don't know what it is */ + /* + * The grey world model can't estimate the colour temperature, use a + * default value. + */ + asyncResults_.temperatureK = kDefaultCT; asyncResults_.gainR = gainR; asyncResults_.gainG = 1.0; asyncResults_.gainB = gainB; |