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GET /api/1.1/patches/27283/?format=api
{ "id": 27283, "url": "https://patchwork.libcamera.org/api/1.1/patches/27283/?format=api", "web_url": "https://patchwork.libcamera.org/patch/27283/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/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": "<20260708-libipa-algorithms-v4-18-f0e99f035294@ideasonboard.com>", "date": "2026-07-08T09:25:05", "name": "[v4,18/35] ipa: libipa: lsc_base: Add sampleForCrop documentation", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "088ffed4f35d6ebfb7aa5a607ee3e4baa48a4a83", "submitter": { "id": 143, "url": "https://patchwork.libcamera.org/api/1.1/people/143/?format=api", "name": "Jacopo Mondi", "email": "jacopo.mondi@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/27283/mbox/", "series": [ { "id": 6046, "url": "https://patchwork.libcamera.org/api/1.1/series/6046/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=6046", "date": "2026-07-08T09:24:47", "name": "ipa: libipa: Introduce libipa algorithms", "version": 4, "mbox": "https://patchwork.libcamera.org/series/6046/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/27283/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/27283/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 DB0AEC3332\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 8 Jul 2026 09:25:35 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 57D8A660B8;\n\tWed, 8 Jul 2026 11:25:29 +0200 (CEST)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id C94EE6607C\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 8 Jul 2026 11:25:10 +0200 (CEST)", "from [192.168.1.182] (93-46-82-201.ip106.fastwebnet.it\n\t[93.46.82.201])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 2C2AB3FAF;\n\tWed, 8 Jul 2026 11:24:21 +0200 (CEST)" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"dGW1yM+z\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1783502661;\n\tbh=ZQB2/8/lfwl0b3X1amVOEn3MSG9P/pJyN8UbLOUxTSE=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n\tb=dGW1yM+z5kSEMTgWwXORnGww72Vlxw35BV9WssEYDFNtD8h1rbH9ymIoO9hG9b4Tl\n\t7UwfVxY8KwUgvIklJ5T8XQwpvjwud5K+pYEIUJjRhp1/0KwftwPH11OQLeVKTyuDjg\n\txBuSZxRIiYrcFpWaJxIeo+9T1o72m70vi1J0Loug=", "From": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>", "Date": "Wed, 08 Jul 2026 11:25:05 +0200", "Subject": "[PATCH v4 18/35] ipa: libipa: lsc_base: Add sampleForCrop\n\tdocumentation", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260708-libipa-algorithms-v4-18-f0e99f035294@ideasonboard.com>", "References": "<20260708-libipa-algorithms-v4-0-f0e99f035294@ideasonboard.com>", "In-Reply-To": "<20260708-libipa-algorithms-v4-0-f0e99f035294@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org, \n\tStefan Klug <stefan.klug@ideasonboard.com>", "Cc": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>", "X-Mailer": "b4 0.14.3", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=1459;\n\ti=jacopo.mondi@ideasonboard.com; h=from:subject:message-id;\n\tbh=ZQB2/8/lfwl0b3X1amVOEn3MSG9P/pJyN8UbLOUxTSE=;\n\tb=owEBbQKS/ZANAwAKAXI0Bo8WoVY8AcsmYgBqThdu1GCg42iOFvniekYWlEumB09cx7jdDVhX2\n\tPpR8BTEzmuJAjMEAAEKAB0WIQS1xD1IgJogio9YOMByNAaPFqFWPAUCak4XbgAKCRByNAaPFqFW\n\tPOAaD/9i0MV8LUMT20wKkqlyTUP3GnwukvWNG/dSWQ60ATB6OCau5jaFE8zdf06Eqwa4QAk8j7F\n\t1VnCz0nG8CZlghQE17R759sd+PXbzI2XsQYEzWvZGJ796zz8vSWmEnh9waNXIGtNxWdn55lQUWc\n\thXE7qYr24CuaYiMafqdBVNlm9VBcQAMNnZ8Il7p2Bv6eD8TbdPnU2yudpKlwLThDFmgFPzZ2dB6\n\tJjqnLIFVFYXTgAMVi7YivGBapXq61diW+S0J3UN0qbwyLeqMVO5K3+f9jm3M6obC3IsJ31Oqhmf\n\tLC2J12jm4aw07FXcmI16Tf1qRVd97xTh6NgXY5wWrnUWyjHUUiXttKfqfHX/9uu4aEcDUwtnjdP\n\t+fthJgpEt9LUXc0o/AsfpSM5xHEZfGH0f5efuw2vdeKJ+BK+uHhiW149FXYuYsVATsmqObnpCnb\n\t7bXIDcDnte4JaALj2PIqsirxR+aS0LR/HCxXxJiyVfef+Io8MwKoS4jGA4Kxf7wgXiKH42dToCn\n\tGVYZtQf7rIMEOd2RnoDYxSlOaGE0esjAld1s8HyZNAnpmqKPjnXAMAhJCJoNW8sl4rcthZ2exAV\n\t+UPRrkRAl0iMXXxTgcP7Urfe+BQFAfhiDRX00CVaB6hLtUmul7OBbhijPBlTN8CSn/NWnppW9HS\n\tgcmlLIzlo2ZGZPA==", "X-Developer-Key": "i=jacopo.mondi@ideasonboard.com; a=openpgp;\n\tfpr=72392EDC88144A65C701EA9BA5826A2587AD026B", "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": "Now that we have two in-tree implementations of LscImplementation\ndetail how the two perform lsc gain re-sampling.\n\nSigned-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>\n---\n src/ipa/libipa/lsc_base.cpp | 15 +++++++++++++++\n 1 file changed, 15 insertions(+)", "diff": "diff --git a/src/ipa/libipa/lsc_base.cpp b/src/ipa/libipa/lsc_base.cpp\nindex 945020794b57..678ba8a9a808 100644\n--- a/src/ipa/libipa/lsc_base.cpp\n+++ b/src/ipa/libipa/lsc_base.cpp\n@@ -103,6 +103,21 @@ void Interpolator<lsc::Components>::\n * each segment of size 0.0625 and the list of nodes position will be\n * [0, 0.0625, 0.125, 0.1875, ... , 1]. It is expected that the first position\n * is 0 and the last position is 1.\n+ *\n+ * LSC tables are expressed in two formats:\n+ * - A list of gain values (LscTable)\n+ * - A radial polynomial (LscPolynomial)\n+ *\n+ * Table-based LSC tables are generated using an image at a fixed resolution and\n+ * can't at the moment be re-sampled when a different resolution is used for a\n+ * streaming session. Re-sampling a grid LSC table will return the same table\n+ * as loaded from the tuning file.\n+ *\n+ * \\todo: Implement grid based re-sampling\n+ *\n+ * Polynomial configurations are more flexible and can be re-sampled for a given\n+ * sensor frame resolution using a list of horizontal and vertical nodes that\n+ * define the LSC grid on which the polynomial is re-sampled on.\n */\n \n } /* namespace ipa */\n", "prefixes": [ "v4", "18/35" ] }