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libtuning: agc: rkisp1: Increase y-target

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With the addition of gamma out correction the relative luminance target
was set too low. As brightness is a bit subjective it is difficult to
come up with the "correct" value. With 0.5 the patch 22 on the macbeth
chart (neutral grey, 18% reflectance) ended up a bit below 50% grey,
which seems reasonable.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
This commit is contained in:
Stefan Klug 2024-06-14 12:54:31 +02:00
parent d5db46232e
commit 974a526c83
1 changed files with 1 additions and 1 deletions
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2
utils/tuning/libtuning/modules/agc/rkisp1.py
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@ -64,7 +64,7 @@ class AGCRkISP1(AGC):
return {'ConstraintNormal': normal, 'ConstraintHighlight': highlight} return {'ConstraintNormal': normal, 'ConstraintHighlight': highlight}
def _generate_y_target(self) -> list: def _generate_y_target(self) -> list:
return 0.16 return 0.5
def process(self, config: dict, images: list, outputs: dict) -> dict: def process(self, config: dict, images: list, outputs: dict) -> dict:
output = {} output = {}