[PATCH] ipa: raspberrypi: imx296: Minor tuning updates

[David Plowman]

Some small updates to the tuning for the imx296 colour sensor:

* Minor colour changes, generally makes things a little less green
* Sharpening toned down
* rpi.focus algorithm added so that focus measure can be accessed.

The sharpening and focus changes are also made for the mono version of
the sensor. The sharpness characteristics should be very similar so
the change should beneficial, and the addition of the focus measure
may be useful, and is at worst harmless.

Signed-off-by: David Plowman <david.plowman at raspberrypi.com>
---
 src/ipa/raspberrypi/data/imx296.json      | 20 ++++++++++++++------
 src/ipa/raspberrypi/data/imx296_mono.json | 12 ++++++++++--
 2 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/src/ipa/raspberrypi/data/imx296.json b/src/ipa/raspberrypi/data/imx296.json
index 4e830517..2ced95e2 100644
--- a/src/ipa/raspberrypi/data/imx296.json
+++ b/src/ipa/raspberrypi/data/imx296.json
@@ -78,7 +78,7 @@
                     "auto":
                     {
                         "lo": 2500,
-                        "hi": 8000
+                        "hi": 7600
                     },
                     "incandescent":
                     {
@@ -108,7 +108,7 @@
                     "cloudy":
                     {
                         "lo": 7000,
-                        "hi": 8600
+                        "hi": 7600
                     }
                 },
                 "bayes": 1,
@@ -122,8 +122,8 @@
                     5600.0, 0.2948, 0.6124,
                     7400.0, 0.2336, 0.6894
                 ],
-                "sensitivity_r": 1.0,
-                "sensitivity_b": 1.0,
+                "sensitivity_r": 1.05,
+                "sensitivity_b": 1.05,
                 "transverse_pos": 0.03093,
                 "transverse_neg": 0.02374
             }
@@ -418,7 +418,15 @@
             }
         },
         {
-            "rpi.sharpen": { }
+            "rpi.sharpen":
+	    {
+		"threshold": 0.1,
+		"strength": 1.0,
+		"limit": 0.18
+	    }
+        },
+        {
+            "rpi.focus": { }
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/src/ipa/raspberrypi/data/imx296_mono.json b/src/ipa/raspberrypi/data/imx296_mono.json
index b68b11db..d937bb30 100644
--- a/src/ipa/raspberrypi/data/imx296_mono.json
+++ b/src/ipa/raspberrypi/data/imx296_mono.json
@@ -222,7 +222,15 @@
             }
         },
         {
-            "rpi.sharpen": { }
+            "rpi.sharpen":
+	    {
+		"threshold": 0.1,
+		"strength": 1.0,
+		"limit": 0.18
+	    }
+        },
+        {
+            "rpi.focus": { }
         }
     ]
-}
\ No newline at end of file
+}
-- 
2.30.2