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{ "id": 26760, "url": "https://patchwork.libcamera.org/api/patches/26760/?format=api", "web_url": "https://patchwork.libcamera.org/patch/26760/", "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": "<20260514-ov2740-tuning-v4-1-5d59b40abfef@jetm.me>", "date": "2026-05-14T20:01:48", "name": "[v4,1/2] ipa: simple: data: Add OV2740 tuning file", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "1c8ee758bb9d8967eccf2a0d23eaab6867831fec", "submitter": { "id": 261, "url": "https://patchwork.libcamera.org/api/people/261/?format=api", "name": "Javier Tia", "email": "floss@jetm.me" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/26760/mbox/", "series": [ { "id": 5948, "url": "https://patchwork.libcamera.org/api/series/5948/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5948", "date": "2026-05-14T20:01:47", "name": "Add a calibrated tuning file for the OV2740 sensor based on the Intel", "version": 4, "mbox": "https://patchwork.libcamera.org/series/5948/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/26760/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/26760/checks/", "tags": {}, "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 1281EBDCBD\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 14 May 2026 20:01:57 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 8C95863024;\n\tThu, 14 May 2026 22:01:54 +0200 (CEST)", "from fhigh-b3-smtp.messagingengine.com\n\t(fhigh-b3-smtp.messagingengine.com [202.12.124.154])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id CFF7662FE8\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 14 May 2026 22:01:52 +0200 (CEST)", "from phl-compute-02.internal (phl-compute-02.internal\n\t[10.202.2.42])\n\tby mailfhigh.stl.internal (Postfix) with ESMTP id ED4307A006C\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 14 May 2026 16:01:51 -0400 (EDT)", "from phl-imap-07 ([10.202.2.97])\n\tby phl-compute-02.internal (MEProxy); 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260514-ov2740-tuning-v4-1-5d59b40abfef@jetm.me>", "To": "libcamera-devel@lists.libcamera.org", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=3811; i=floss@jetm.me;\n\th=from:subject:message-id;\n\tbh=PF2gc+FYa/uT/H4EVGsAYS/w7sQZDONq0fZ6ceMKq0g=; \n\tb=owEB7QES/pANAwAKAbXuwwuoZ3cfAcsmYgBqBiorOW7KgQ9PVMX/wlbEL9q6DsngHdIIPHrFc\n\tasUOVofrd2JAbMEAAEKAB0WIQSbE7ILzw7eI0VKk8m17sMLqGd3HwUCagYqKwAKCRC17sMLqGd3\n\tH1FCDACe8k4jjd89qQLkMN9W72m9voxKr/jrFdGDxHTDs9SQ96FRDFSylLL2KNUeQoWOtUgPixZ\n\tkvg94IZLeZKSvcO5aKplG0k2QCnBFM/k6sDccAvJlYEbPzrGHMEOqBoEKxSH1vsHEPWNZvxYW0S\n\tFuubYl4zG5QgWjGKUfMMNcG83wqp7YoxvowoKma0uXZjC02D0WIDu7fuPIuXFEcsNAeILPbEFsN\n\tHrjc0W13K/wxec0f9ZlouexNYL0EytFa9YNcl0PN/Vv4oPRA9GCvZnHExHZucNdCdhPMwoKAWRo\n\twt6oLWLzHRPzicmkQ85EM/KKaQiU9a2vrZ6jD9NXZufXIm1p971naFmeCxkIOaHTjIetr5hIgyB\n\tmuHLEdIWPFeDqk2NI2005gsbaleIqW7KsiJEQk4dTFKk3MfKFDRl3cyWfbwpIv0+/b443WHNCBL\n\tGPvaG9rE5xAB9WGHGHuyJgMuGbkQtBFYPQyRW8Kd7SEk4oaR/KNhdqkXjbESq/2VC6W38=", "X-Developer-Key": "i=floss@jetm.me; a=openpgp;\n\tfpr=9B13B20BCF0EDE23454A93C9B5EEC30BA867771F", "In-Reply-To": "<20260514-ov2740-tuning-v4-0-5d59b40abfef@jetm.me>", "References": "<20260514-ov2740-tuning-v4-0-5d59b40abfef@jetm.me>", "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": "Add a tuning file for the OV2740 sensor calibrated from the Intel IPU6\nAIQB binary (OV2740_CJFLE23_ADL.aiqb) shipped with the Lenovo ThinkPad\nX1 Carbon Gen 10 (Alder Lake, JP2 module, Chicony CJFLE23 camera).\n\nBlack level is 0x40 at 10-bit (64 ADU), stored as the 16-bit value 4096\nper the BlackLevel algorithm convention (value >> 8 = 16 at 8-bit scale).\n\nAWB gain limits are derived from the minimum R/G and B/G chromaticities\nacross the 8 calibrated illuminants (2319 K to 6302 K), with a 10%\nheadroom margin: maxGainR=2.49, maxGainB=3.07.\n\nEight CCMs are extracted from the AIQB advanced color matrix records\n(record id=25, float format), covering illuminants from 2319 K\n(incandescent) to 6302 K (daylight).\n\nSigned-off-by: Javier Tia <floss@jetm.me>\n---\n src/ipa/simple/data/meson.build | 1 +\n src/ipa/simple/data/ov2740.yaml | 72 +++++++++++++++++++++++++++++++++++++++++\n 2 files changed, 73 insertions(+)", "diff": "diff --git a/src/ipa/simple/data/meson.build b/src/ipa/simple/data/meson.build\nindex 92795ee4..e3e4de74 100644\n--- a/src/ipa/simple/data/meson.build\n+++ b/src/ipa/simple/data/meson.build\n@@ -1,6 +1,7 @@\n # SPDX-License-Identifier: CC0-1.0\n \n conf_files = files([\n+ 'ov2740.yaml',\n 'uncalibrated.yaml',\n ])\n \ndiff --git a/src/ipa/simple/data/ov2740.yaml b/src/ipa/simple/data/ov2740.yaml\nnew file mode 100644\nindex 00000000..0704143a\n--- /dev/null\n+++ b/src/ipa/simple/data/ov2740.yaml\n@@ -0,0 +1,72 @@\n+# SPDX-License-Identifier: CC0-1.0\n+# Calibrated from OV2740_CJFLE23_ADL.aiqb (Lenovo JP2 module, IPU6 ADL)\n+%YAML 1.1\n+---\n+version: 1\n+algorithms:\n+ - BlackLevel:\n+ blackLevel: 4096\n+ - Awb:\n+ algorithm: grey\n+ maxGainR: 2.49\n+ maxGainB: 3.07\n+ speed: 0.25\n+ # Forward-compatible with the AwbGrey colourGains interpolation in\n+ # libcamera patch series 5874. Has no effect until that series merges.\n+ colourGains:\n+ - ct: 2319\n+ gains: [1.0103, 2.7953]\n+ - ct: 2854\n+ gains: [1.2614, 2.3815]\n+ - ct: 2884\n+ gains: [1.3996, 2.4229]\n+ - ct: 3239\n+ gains: [1.5648, 2.2331]\n+ - ct: 3865\n+ gains: [1.7861, 1.8856]\n+ - ct: 4136\n+ gains: [1.9005, 1.8955]\n+ - ct: 4939\n+ gains: [1.9603, 1.6439]\n+ - ct: 6302\n+ gains: [2.2597, 1.4038]\n+ - Ccm:\n+ ccms:\n+ - ct: 2319\n+ ccm: [ 1.5938, -0.1714, -0.4224,\n+ -0.6134, 1.9612, -0.3478,\n+ -0.4710, -1.8500, 3.3210 ]\n+ - ct: 2854\n+ ccm: [ 1.6119, -0.3132, -0.2987,\n+ -0.4418, 1.8227, -0.3809,\n+ -0.1017, -1.3958, 2.4975 ]\n+ - ct: 2884\n+ ccm: [ 1.7739, -0.6655, -0.1085,\n+ -0.4113, 1.6619, -0.2506,\n+ -0.0150, -1.1661, 2.1811 ]\n+ - ct: 3239\n+ ccm: [ 1.8298, -0.6636, -0.1662,\n+ -0.4086, 1.7373, -0.3287,\n+ -0.0500, -1.0836, 2.1335 ]\n+ - ct: 3865\n+ ccm: [ 1.8836, -0.7430, -0.1406,\n+ -0.3653, 1.7000, -0.3348,\n+ -0.0542, -0.8442, 1.8984 ]\n+ - ct: 4136\n+ ccm: [ 1.9043, -0.8348, -0.0695,\n+ -0.3241, 1.6389, -0.3148,\n+ 0.0262, -0.9593, 1.9332 ]\n+ - ct: 4939\n+ ccm: [ 1.6371, -0.4490, -0.1881,\n+ -0.2675, 1.6494, -0.3819,\n+ -0.0245, -0.7782, 1.8026 ]\n+ - ct: 6302\n+ ccm: [ 1.6401, -0.4418, -0.1984,\n+ -0.2360, 1.7191, -0.4832,\n+ -0.0248, -0.7221, 1.7469 ]\n+ - Adjust:\n+ gamma: 2.2\n+ contrast: 1.0\n+ saturation: 1.0\n+ - Agc:\n+...\n", "prefixes": [ "v4", "1/2" ] }