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{ "id": 11957, "url": "https://patchwork.libcamera.org/api/covers/11957/?format=api", "web_url": "https://patchwork.libcamera.org/cover/11957/", "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": "<20210416074909.24218-1-jeanmichel.hautbois@ideasonboard.com>", "date": "2021-04-16T07:49:05", "name": "[libcamera-devel,v5,0/4] Implement IPA algorithms and demo with IPU3", "submitter": { "id": 75, "url": "https://patchwork.libcamera.org/api/people/75/?format=api", "name": "Jean-Michel Hautbois", "email": "jeanmichel.hautbois@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/11957/mbox/", "series": [ { "id": 1938, "url": "https://patchwork.libcamera.org/api/series/1938/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1938", "date": "2021-04-16T07:49:05", "name": "Implement IPA algorithms and demo with IPU3", "version": 5, "mbox": "https://patchwork.libcamera.org/series/1938/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/11957/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 209A0BD235\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 16 Apr 2021 07:49:14 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 9173968803;\n\tFri, 16 Apr 2021 09:49:13 +0200 (CEST)", "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 5785B605AE\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 16 Apr 2021 09:49:12 +0200 (CEST)", "from localhost.localdomain (unknown\n\t[IPv6:2a01:e0a:169:7140:5b63:445c:7960:347a])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id AD19D5A5;\n\tFri, 16 Apr 2021 09:49:11 +0200 (CEST)" ], "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"Xc2lKCyN\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1618559351;\n\tbh=6HIMCa3gCe3Jm9ttdjpIt6c102x9EV84YuCf/j1oQos=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=Xc2lKCyNdTO38jxVd/DL681YYg72x+A6PFM5l5xImdLNpZkM+XaLKXeKy7j/UxZyb\n\t1ggrARSnXLfF4mbaGRXvJH45J7uB69hzMPf9PrXy1Sz6TPr4BBYbl731qXy5V2R8L2\n\t8hTz1ws+D7zNa5BTxDyaqDWsKSaZLMzaHCc2O7Ao=", "From": "Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Fri, 16 Apr 2021 09:49:05 +0200", "Message-Id": "<20210416074909.24218-1-jeanmichel.hautbois@ideasonboard.com>", "X-Mailer": "git-send-email 2.27.0", "MIME-Version": "1.0", "Subject": "[libcamera-devel] [PATCH v5 0/4] Implement IPA algorithms and demo\n\twith IPU3", "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>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Here is v5 of the IPA demonstration on IPU3.\nIt demonstrates a conjunction of automatic exposure (AGC)\nand automatic white balance (AWB).\n\nThe skeleton are extracted from RPi controller and probably subject to\nmodifications and discussions :\n- are the mandatory methods really those ?\n- how to exchange data between algorithms ?\n - metadata like RPi?\n - IPC ?\n - public methods?\n - controller API ?\n- is the controller needed at all ?\n\nThe implementation in IPU3 is tested on SGo2.\nIt is not perfect but shows a really better behaviour than default.\nRight now, the AGC algorithm is part of the RPi one, adapted to the\nstats and parameters we have in IPU3 on SGo2.\n\nChanges in v5:\n- adress multiple issues found at review time\n- use RPi grey-world AWB algorithm and correct gains\n- prepare for a more generic ISP stat usage\n\nChanges in v4:\n- removed unneeded patch setting exposure and gains\n- improve documentation of Histogram class\n- take review comments \n\nChanges in v3:\n- introduce histogram class (for AGC)\n- add a patch to introduce parameter context saving\n- changes in AGC to simplify it using part of RPi work\n- changes in the AWB loop\n- calculate the grid for the parameters using the BDS size from pipeline\n handler\n\nIn v2:\n- splits AWB and AEC/AGC algorithms.\n- remove unused Controller\n- remove unused variables/methods\n- rename most of the class members\n\nJean-Michel Hautbois (4):\n ipa: Add a common interface for algorithm objects\n ipa: ipu3: Add a histogram class\n ipa: ipu3: Add support for IPU3 AWB algorithm\n ipa: ipu3: Add support for IPU3 AEC/AGC algorithm\n\n src/ipa/ipu3/ipu3.cpp | 96 +++++++++-\n src/ipa/ipu3/ipu3_agc.cpp | 206 ++++++++++++++++++++\n src/ipa/ipu3/ipu3_agc.h | 62 +++++++\n src/ipa/ipu3/ipu3_awb.cpp | 351 +++++++++++++++++++++++++++++++++++\n src/ipa/ipu3/ipu3_awb.h | 91 +++++++++\n src/ipa/ipu3/meson.build | 8 +-\n src/ipa/libipa/algorithm.cpp | 39 ++++\n src/ipa/libipa/algorithm.h | 24 +++\n src/ipa/libipa/histogram.cpp | 150 +++++++++++++++\n src/ipa/libipa/histogram.h | 40 ++++\n src/ipa/libipa/meson.build | 6 +-\n 11 files changed, 1063 insertions(+), 10 deletions(-)\n create mode 100644 src/ipa/ipu3/ipu3_agc.cpp\n create mode 100644 src/ipa/ipu3/ipu3_agc.h\n create mode 100644 src/ipa/ipu3/ipu3_awb.cpp\n create mode 100644 src/ipa/ipu3/ipu3_awb.h\n create mode 100644 src/ipa/libipa/algorithm.cpp\n create mode 100644 src/ipa/libipa/algorithm.h\n create mode 100644 src/ipa/libipa/histogram.cpp\n create mode 100644 src/ipa/libipa/histogram.h" }