Merge "camera3: Add green split property." (8eb91e9f) · Commits · e / os / android_frameworks_base

api/current.txt

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		@@ -11647,6 +11647,7 @@ package android.hardware.camera2 {
		field public static final android.hardware.camera2.CameraMetadata.Key SENSOR_EXPOSURE_TIME;
		field public static final android.hardware.camera2.CameraMetadata.Key SENSOR_FORWARD_MATRIX;
		field public static final android.hardware.camera2.CameraMetadata.Key SENSOR_FRAME_DURATION;
		field public static final android.hardware.camera2.CameraMetadata.Key SENSOR_GREEN_SPLIT;
		field public static final android.hardware.camera2.CameraMetadata.Key SENSOR_NEUTRAL_COLOR_POINT;
		field public static final android.hardware.camera2.CameraMetadata.Key SENSOR_PROFILE_HUE_SAT_MAP;
		field public static final android.hardware.camera2.CameraMetadata.Key SENSOR_PROFILE_TONE_CURVE;

core/java/android/hardware/camera2/CaptureResult.java

+33 −0

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		@@ -1535,6 +1535,39 @@ public final class CaptureResult extends CameraMetadata {
		public static final Key<float[]> SENSOR_PROFILE_TONE_CURVE =
		new Key<float[]>("android.sensor.profileToneCurve", float[].class);

		/**
		* <p>The worst-case divergence between Bayer green channels.</p>
		* <p>This value is an estimate of the worst case split between the
		* Bayer green channels in the red and blue rows in the sensor color
		* filter array.</p>
		* <p>The green split is calculated as follows:</p>
		* <ol>
		* <li>A representative 5x5 pixel window W within the active
		* sensor array is chosen.</li>
		* <li>The arithmetic mean of the green channels from the red
		* rows (mean_Gr) within W is computed.</li>
		* <li>The arithmetic mean of the green channels from the blue
		* rows (mean_Gb) within W is computed.</li>
		* <li>The maximum ratio R of the two means is computed as follows:
		* <code>R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))</code></li>
		* </ol>
		* <p>The ratio R is the green split divergence reported for this property,
		* which represents how much the green channels differ in the mosaic
		* pattern. This value is typically used to determine the treatment of
		* the green mosaic channels when demosaicing.</p>
		* <p>The green split value can be roughly interpreted as follows:</p>
		* <ul>
		* <li>R < 1.03 is a negligible split (<3% divergence).</li>
		* <li>1.20 <= R >= 1.03 will require some software
		* correction to avoid demosaic errors (3-20% divergence).</li>
		* <li>R > 1.20 will require strong software correction to produce
		* a usuable image (>20% divergence).</li>
		* </ul>
		* <p><b>Optional</b> - This value may be {@code null} on some devices.</p>
		*/
		public static final Key<Float> SENSOR_GREEN_SPLIT =
		new Key<Float>("android.sensor.greenSplit", float.class);

		/**
		* <p>When enabled, the sensor sends a test pattern instead of
		* doing a real exposure from the camera.</p>