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{ "id": 22978, "url": "https://patchwork.libcamera.org/api/covers/22978/?format=api", "web_url": "https://patchwork.libcamera.org/cover/22978/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20250319161152.63625-1-stefan.klug@ideasonboard.com>", "date": "2025-03-19T16:11:05", "name": "[v2,00/17] Some rkisp1 awb improvements", "submitter": { "id": 184, "url": "https://patchwork.libcamera.org/api/people/184/?format=api", "name": "Stefan Klug", "email": "stefan.klug@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/22978/mbox/", "series": [ { "id": 5071, "url": "https://patchwork.libcamera.org/api/series/5071/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5071", "date": "2025-03-19T16:11:05", "name": "Some rkisp1 awb improvements", "version": 2, "mbox": "https://patchwork.libcamera.org/series/5071/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/22978/comments/", "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 03368C32FE\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 19 Mar 2025 16:11:59 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 4A977687FA;\n\tWed, 19 Mar 2025 17:11:58 +0100 (CET)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 1889A687FA\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 19 Mar 2025 17:11:57 +0100 (CET)", "from ideasonboard.com (unknown\n\t[IPv6:2a00:6020:448c:6c00:760:e5ca:4814:99c7])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 1F73B55A;\n\tWed, 19 Mar 2025 17:10:14 +0100 (CET)" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"ZJUr01uj\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1742400614;\n\tbh=kwxhQozAvJ2V5t+2fR369MU6/hY3k+gDyK2F/DC+AZA=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=ZJUr01ujd9l3AWb0yGPZl3gfGfyg6xQHEr+bd4ACFySZFFcZeJsTWQeH2cL7Sqfn5\n\tjixODzbknBU5NWPMShMCiToHJPT/zH08NDhf6ZOXILJW4VxrxlaCCiXAIjnc3LfPwL\n\t61FeTFURzLzWb8WFtbycjd/Ko7nra2+EQt1ccwl4=", "From": "Stefan Klug <stefan.klug@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "Stefan Klug <stefan.klug@ideasonboard.com>", "Subject": "[PATCH v2 00/17] Some rkisp1 awb improvements", "Date": "Wed, 19 Mar 2025 17:11:05 +0100", "Message-ID": "<20250319161152.63625-1-stefan.klug@ideasonboard.com>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Hi all,\n\nThis series contains a few fixes that greatly improve and stabilize the\nAWB handling on rkisp1.\n\nAfter the feedback from the first version, some parts were rewritten and\nLaurent added a generic matrix inverse function.\n\nPatches 1-8 add utility functions to Vector and Matrix.\n\nThe rest fixes some bugs and generally improves the AWB on rkisp1.\nPlease see the individual patches for details.\n\nBest regards,\nStefan\n\nChanges in v2:\n\n- Replaced the matrix cast() and inverse() functions by better alternatives\n- Added a manual CCM control\n- Some small fixes (see logs in individual patches)\n\n\nLaurent Pinchart (2):\n libcamera: matrix: Extend multiplication operator to heterogenous\n types\n libcamera: vector: Extend matrix multiplication operator to\n heterogenous types\n\nStefan Klug (15):\n libcamera: matrix: Replace SFINAE with static_asserts\n libcamera: matrix: Make most functions constexpr\n libcamera: matrix: Add a Span based constructor\n libcamera: vector: Add a Span based constructor\n libcamera: matrix: Add inverse() function\n test: Add minimal test for Matrix\n ipa: rkisp1: Refactor automatic/manual structure in IPAActiveState\n ipa: rkisp1: ccm/lsc: Fix CCM/LSC based on manual color temperature\n ipa: rkisp1: Implement manual ColourCorrectionMatrix control\n libipa: awb: Make result of gainsFromColourTemp optional\n ipa: rkisp1: awb: Use gains from color temperature curve\n ipa: rkisp1: Damp color temperature regulation\n ipa: rkisp1: awb: Set rgb mean limits to 180\n ipa: rkisp1: awb: Take the CCM into account for the AWB gains\n calculation\n ipa: rkisp1: awb: Avoid division by zero\n\n include/libcamera/internal/matrix.h | 82 ++++++-------\n include/libcamera/internal/vector.h | 21 ++--\n src/ipa/libipa/awb.cpp | 2 +-\n src/ipa/libipa/awb.h | 2 +-\n src/ipa/libipa/awb_bayes.cpp | 4 +-\n src/ipa/libipa/awb_bayes.h | 2 +-\n src/ipa/libipa/awb_grey.cpp | 6 +-\n src/ipa/libipa/awb_grey.h | 2 +-\n src/ipa/rkisp1/algorithms/awb.cpp | 79 ++++++++-----\n src/ipa/rkisp1/algorithms/ccm.cpp | 63 ++++++++--\n src/ipa/rkisp1/algorithms/ccm.h | 6 +\n src/ipa/rkisp1/algorithms/lsc.cpp | 6 +-\n src/ipa/rkisp1/ipa_context.h | 15 ++-\n src/libcamera/matrix.cpp | 175 +++++++++++++++++++++++++++-\n src/libcamera/vector.cpp | 13 ++-\n test/matrix.cpp | 53 +++++++++\n test/meson.build | 1 +\n 17 files changed, 427 insertions(+), 105 deletions(-)\n create mode 100644 test/matrix.cpp" }