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Merge "Camera: clarify lens shading map" into nyc-dev

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Zhijun He
2016-04-14 05:20:44 +00:00
committed by Android (Google) Code Review
parent fbd47caf40 43210fe2e8
commit 15aac69c8f
1 changed files with 14 additions and 4 deletions
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18
core/java/android/hardware/camera2/CaptureResult.java
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@@ -3599,10 +3599,20 @@ public class CaptureResult extends CameraMetadata<CaptureResult.Key<?>> {
/**
* <p>The shading map is a low-resolution floating-point map
* that lists the coefficients used to correct for vignetting, for each
* Bayer color channel of RAW image data.</p>
* <p>The least shaded section of the image should have a gain factor
* of 1; all other sections should have gains above 1.</p>
* that lists the coefficients used to correct for vignetting and color shading,
* for each Bayer color channel of RAW image data.</p>
* <p>The lens shading correction is defined as a full shading correction that
* corrects both color shading for the output non-RAW images. After the
* shading map is applied, the output non-RAW images will be flat-field images
* for flat scenes under uniform illumination.</p>
* <p>When there is no lens shading correction applied to RAW output images
* ({@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied} <code>==</code> false), this map is a full lens
* shading correction map; when there is some lens shading correction applied
* to the RAW output image ({@link CameraCharacteristics#SENSOR_INFO_LENS_SHADING_APPLIED android.sensor.info.lensShadingApplied} <code>==</code> true),
* this map reports the remaining lens shading correction map that needs to be
* applied to get fully shading corrected images.</p>
* <p>For a full shading correction map, the least shaded section of the image
* should have a gain factor of 1; all other sections should have gains above 1.</p>
* <p>When {@link CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} = TRANSFORM_MATRIX, the map
* must take into account the colorCorrection settings.</p>
* <p>The shading map is for the entire active pixel array, and is not