From patchwork Fri Jul 5 14:41:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Klug X-Patchwork-Id: 20612 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 16C94BD87C for ; Fri, 5 Jul 2024 14:43:16 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 9DDA56337C; Fri, 5 Jul 2024 16:43:15 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="SCR/TkSV"; 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 E4B956337C for ; Fri, 5 Jul 2024 16:43:11 +0200 (CEST) Received: from ideasonboard.com (unknown [IPv6:2a00:6020:448c:6c00:60b6:33a3:3a20:6030]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 655D24CC; Fri, 5 Jul 2024 16:42:42 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1720190562; bh=KOXY8z/WG7DDdH7okIOTda5cjmJJnPzWdbxjb9pXn6k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SCR/TkSVxwKiPBxs1rH1PWTwand3At5f54L7wMYgBJcOcaTnSV0q8vmEYLmVJYyu8 eamWfnBvAKVroBSf8FakrgR+FYTCPBj3ZcguSdWvoRqfI8N7Dk6ThnqJgfXABIyr+E kaBiCy1T0h//FDtIQLQEZUcea1f2jW6+KQdotlK8= From: Stefan Klug To: libcamera-devel@lists.libcamera.org Cc: Stefan Klug , Laurent Pinchart , Paul Elder Subject: [PATCH v4 23/23] libtuning: agc: rkisp1: Increase y-target Date: Fri, 5 Jul 2024 16:41:59 +0200 Message-ID: <20240705144209.418906-24-stefan.klug@ideasonboard.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240705144209.418906-1-stefan.klug@ideasonboard.com> References: <20240705144209.418906-1-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 macbeth 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 = {}