[PATCH v3 13/23] libtuning: lsc: rkisp1: Clip lsc values to valid range

[Paul Elder]

On Wed, Jul 03, 2024 at 04:17:02PM +0200, Stefan Klug wrote:
> Based on the input images, the lsc values could exceed the range allowed
> by the rkisp1. As we are now clipping the values, we can simplify the
> value mapping.
> 
> Signed-off-by: Stefan Klug <stefan.klug at ideasonboard.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
>  utils/tuning/libtuning/modules/lsc/rkisp1.py | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/utils/tuning/libtuning/modules/lsc/rkisp1.py b/utils/tuning/libtuning/modules/lsc/rkisp1.py
> index 20406e436a6a..57004104fc7a 100644
> --- a/utils/tuning/libtuning/modules/lsc/rkisp1.py
> +++ b/utils/tuning/libtuning/modules/lsc/rkisp1.py
> @@ -80,7 +80,8 @@ class LSCRkISP1(LSC):
>              tables = []
>              for lis in [list_cr, list_cgr, list_cgb, list_cb]:
>                  table = np.mean(lis[indices], axis=0)
> -                table = output_map_func((1, 3.999), (1024, 4095), table)
> +                table = output_map_func((1, 4), (1024, 4096), table)
> +                table = np.clip(table, 1024, 4095)

Oh that indeed does look nicer.

Reviewed-by: Paul Elder <paul.elder at ideasonboard.com>

>                  table = np.round(table).astype('int32').tolist()
>                  tables.append(table)
>  
> -- 
> 2.43.0
>