{"id":11775,"url":"https://patchwork.libcamera.org/api/1.1/covers/11775/?format=json","web_url":"https://patchwork.libcamera.org/cover/11775/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20210329191826.77817-1-jeanmichel.hautbois@ideasonboard.com>","date":"2021-03-29T19:18:21","name":"[libcamera-devel,v3,0/5] Implement IPA algorithms and demo with IPU3","submitter":{"id":75,"url":"https://patchwork.libcamera.org/api/1.1/people/75/?format=json","name":"Jean-Michel Hautbois","email":"jeanmichel.hautbois@ideasonboard.com"},"mbox":"https://patchwork.libcamera.org/cover/11775/mbox/","series":[{"id":1865,"url":"https://patchwork.libcamera.org/api/1.1/series/1865/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=1865","date":"2021-03-29T19:18:21","name":"Implement IPA algorithms and demo with IPU3","version":3,"mbox":"https://patchwork.libcamera.org/series/1865/mbox/"}],"comments":"https://patchwork.libcamera.org/api/covers/11775/comments/","headers":{"Return-Path":"","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 A60A4C32F0\n\tfor ;\n\tMon, 29 Mar 2021 19:18:35 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 01A9468785;\n\tMon, 29 Mar 2021 21:18:35 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id B64546877D\n\tfor ;\n\tMon, 29 Mar 2021 21:18:33 +0200 (CEST)","from localhost.localdomain (unknown\n\t[IPv6:2a01:e0a:169:7140:9714:da21:50fd:f63f])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 5E591503;\n\tMon, 29 Mar 2021 21:18:32 +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=\"MEnL1kDo\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1617045512;\n\tbh=ANdSL94eBoAz0/fLWvhmMUbmysNsnCIaj8SR8EMJIqM=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=MEnL1kDoNcIa5788RNe+ipFjC1kDa/WjaLU6zDzlaHU7rtOcjtK+xC2uA4CqLqHVc\n\tBZwa8WSmns/woEOosRPWbKnKJd81TJAk9t/D9bZMbRJfblOW1mKOX7A5I9KtRetLzY\n\t/JTs6WbwPPjlFgmT4LvSGUwOPCFesfQBj7d+0pMQ=","From":"Jean-Michel Hautbois ","To":"libcamera-devel@lists.libcamera.org","Date":"Mon, 29 Mar 2021 21:18:21 +0200","Message-Id":"<20210329191826.77817-1-jeanmichel.hautbois@ideasonboard.com>","X-Mailer":"git-send-email 2.27.0","MIME-Version":"1.0","Subject":"[libcamera-devel] [PATCH v3 0/5] 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":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Here is v3 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.\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 (5):\n ipa: Add a common interface for algorithm objects\n ipa: ipu3: Add an histogram class\n ipa: ipu3: Use a local parameter object and prepare for 3A algorithms\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 | 91 ++++++++++++--\n src/ipa/ipu3/ipu3_agc.cpp | 229 ++++++++++++++++++++++++++++++++++\n src/ipa/ipu3/ipu3_agc.h | 67 ++++++++++\n src/ipa/ipu3/ipu3_awb.cpp | 233 +++++++++++++++++++++++++++++++++++\n src/ipa/ipu3/ipu3_awb.h | 44 +++++++\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 | 102 +++++++++++++++\n src/ipa/libipa/histogram.h | 62 ++++++++++\n src/ipa/libipa/meson.build | 6 +-\n 11 files changed, 896 insertions(+), 9 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"}