From patchwork Wed Jul 3 14:17:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Klug X-Patchwork-Id: 20537 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 6E107BEFBE for ; Wed, 3 Jul 2024 14:18:44 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 212B863372; Wed, 3 Jul 2024 16:18:44 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="rVboq7/6"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 636A663370 for ; Wed, 3 Jul 2024 16:18:41 +0200 (CEST) Received: from ideasonboard.com (unknown [IPv6:2a00:6020:448c:6c00:9263:c199:9587:576]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 435994CA; Wed, 3 Jul 2024 16:18:13 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1720016293; bh=8REfSy+49hMeQ0J7u/T/NBeOTW1n8QoejuZ9uBZaysY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rVboq7/6nCPXjD3+cmfk208XDyuA21Shx9VRYAu8yn2u4YBVMM8joEGOvClMgBKcN 2ERb15LQx1nlaS1cJ1k2Eh29dzdfc2B6bIojARM+wcazJk4BSoqNr6pmRHX3Ba9DJA GBnwnsq3rct4sZg31I+Ug/vZPk/gcUl1OZVLdAjA= From: Stefan Klug To: libcamera-devel@lists.libcamera.org Cc: Stefan Klug , Laurent Pinchart Subject: [PATCH v3 23/23] libtuning: agc: rkisp1: Increase y-target Date: Wed, 3 Jul 2024 16:17:12 +0200 Message-ID: <20240703141726.252368-24-stefan.klug@ideasonboard.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240703141726.252368-1-stefan.klug@ideasonboard.com> References: <20240703141726.252368-1-stefan.klug@ideasonboard.com> MIME-Version: 1.0 X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" 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 mac beth chart (neutral grey, 18% reflectance) ended up a bit below 50% grey, which seems reasonable. Signed-off-by: Stefan Klug Reviewed-by: Laurent Pinchart Reviewed-by: Paul Elder --- utils/tuning/libtuning/modules/agc/rkisp1.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/utils/tuning/libtuning/modules/agc/rkisp1.py b/utils/tuning/libtuning/modules/agc/rkisp1.py index 19a5555b6111..7147028a774a 100644 --- a/utils/tuning/libtuning/modules/agc/rkisp1.py +++ b/utils/tuning/libtuning/modules/agc/rkisp1.py @@ -64,7 +64,7 @@ class AGCRkISP1(AGC): return {'ConstraintNormal': normal, 'ConstraintHighlight': highlight} def _generate_y_target(self) -> list: - return 0.16 + return 0.5 def process(self, config: dict, images: list, outputs: dict) -> dict: output = {}