From f5b45c180e64099fbee432fa69f807d5efa8a006 Mon Sep 17 00:00:00 2001 From: David Plowman Date: Fri, 24 Jul 2020 15:56:16 +0100 Subject: libcamera: Add ColourCorrectionMatrix control This control is principally for returning, in the image metadata, the CCM (Colour Correction Matrix) used by the imaging pipeline. By which we mean the 3x3 matrix that is applied to the camera RGB pixels after subtraction of black levels and white-balancing, but before any gamma transformation. Some implementations may also choose to let an application set explicit colour matrices, using this as a control. Signed-off-by: David Plowman Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- src/libcamera/control_ids.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'src/libcamera/control_ids.yaml') diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids.yaml index 988b5016..3560d4a8 100644 --- a/src/libcamera/control_ids.yaml +++ b/src/libcamera/control_ids.yaml @@ -262,4 +262,15 @@ controls: In this respect, it is not necessarily aimed at providing a way to implement a focus algorithm by the application, rather an indication of how in-focus a frame is. + + - ColourCorrectionMatrix: + type: float + description: | + The 3x3 matrix that converts camera RGB to sRGB within the + imaging pipeline. This should describe the matrix that is used + after pixels have been white-balanced, but before any gamma + transformation. The 3x3 matrix is stored in conventional reading + order in an array of 9 floating point values. + + size: [3x3] ... -- cgit v1.2.1