From c905870cd0f1d6c1af048669ea744bc1de8062de Mon Sep 17 00:00:00 2001 From: Naushir Patuck Date: Fri, 26 Jun 2020 11:25:28 +0100 Subject: libcamera: controls: Add focus Figure of Merit (FoM) control Provide a control to allow the IPA to return a FoM to indicate how in-focus a scene is. Note, this is not to be used as a means to implement a focus algorithm by the application, rather an indication of how in-focus a scene is. Signed-off-by: Naushir Patuck Reviewed-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 8c3e4c72..988b5016 100644 --- a/src/libcamera/control_ids.yaml +++ b/src/libcamera/control_ids.yaml @@ -251,4 +251,15 @@ controls: higher than anyone could reasonably want. Negative values are not allowed. Note also that sharpening is not applied to raw streams. + + - FocusFoM: + type: int32_t + description: | + Reports a Figure of Merit (FoM) to indicate how in-focus the frame is. + A larger FocusFoM value indicates a more in-focus frame. This control + depends on the IPA to gather ISP statistics from the defined focus + region, and combine them in a suitable way to generate a FocusFoM value. + 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. ... -- cgit v1.2.1