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{ "id": 17653, "url": "https://patchwork.libcamera.org/api/patches/17653/?format=api", "web_url": "https://patchwork.libcamera.org/patch/17653/", "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": "<20221022062310.2545463-3-paul.elder@ideasonboard.com>", "date": "2022-10-22T06:23:01", "name": "[libcamera-devel,v2,02/11] utils: libtuning: modules: Add ALSC module", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "7dd842afc75a5b8a74fff6772d23c21449c27ff6", "submitter": { "id": 17, "url": "https://patchwork.libcamera.org/api/people/17/?format=api", "name": "Paul Elder", "email": "paul.elder@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/17653/mbox/", "series": [ { "id": 3573, "url": "https://patchwork.libcamera.org/api/series/3573/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3573", "date": "2022-10-22T06:22:59", "name": "utils: tuning: Add a new tuning infrastructure", "version": 2, "mbox": "https://patchwork.libcamera.org/series/3573/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/17653/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/17653/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 059D0C0DA4\n\tfor <parsemail@patchwork.libcamera.org>;\n\tSat, 22 Oct 2022 06:23:29 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id B571362ED0;\n\tSat, 22 Oct 2022 08:23:28 +0200 (CEST)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id C2A6F62EC3\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSat, 22 Oct 2022 08:23:24 +0200 (CEST)", "from pyrite.rasen.tech (h175-177-042-159.catv02.itscom.jp\n\t[175.177.42.159])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 67F25106;\n\tSat, 22 Oct 2022 08:23:23 +0200 (CEST)" ], "DKIM-Signature": [ "v=1; 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dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"hN1386eW\"; dkim-atps=neutral", "To": "libcamera-devel@lists.libcamera.org", "Date": "Sat, 22 Oct 2022 15:23:01 +0900", "Message-Id": "<20221022062310.2545463-3-paul.elder@ideasonboard.com>", "X-Mailer": "git-send-email 2.30.2", "In-Reply-To": "<20221022062310.2545463-1-paul.elder@ideasonboard.com>", "References": "<20221022062310.2545463-1-paul.elder@ideasonboard.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v2 02/11] utils: libtuning: modules: Add\n\tALSC module", "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>", "From": "Paul Elder via libcamera-devel <libcamera-devel@lists.libcamera.org>", "Reply-To": "Paul Elder <paul.elder@ideasonboard.com>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Add an ALSC module to libtuning's collection of modules. It is based on\nraspberrypi's ctt's ALSC, but customizable for different lens shading\ntable sizes, among other things.\n\nSigned-off-by: Paul Elder <paul.elder@ideasonboard.com>\n\n---\nChanges in v2:\n- fix python errors\n- fix style\n- add SPDX and copyright\n- don't call super().validateConfig()\n- fix sector splitting\n - i forgot that we have to half the image size for each color channel\n- make the base ALSC module into an abstract module, which can be easily\n used by other platforms to derive their own ALSC modules (see rkisp1's\n module later in this series; i think it's quite nice)\n---\n .../tuning/libtuning/modules/alsc/__init__.py | 5 ++\n utils/tuning/libtuning/modules/alsc/alsc.py | 78 +++++++++++++++++++\n 2 files changed, 83 insertions(+)\n create mode 100644 utils/tuning/libtuning/modules/alsc/__init__.py\n create mode 100644 utils/tuning/libtuning/modules/alsc/alsc.py", "diff": "diff --git a/utils/tuning/libtuning/modules/alsc/__init__.py b/utils/tuning/libtuning/modules/alsc/__init__.py\nnew file mode 100644\nindex 00000000..a8f28923\n--- /dev/null\n+++ b/utils/tuning/libtuning/modules/alsc/__init__.py\n@@ -0,0 +1,5 @@\n+# SPDX-License-Identifier: GPL-2.0-or-later\n+#\n+# Copyright (C) 2022, Paul Elder <paul.elder@ideasonboard.com>\n+\n+from libtuning.modules.alsc.alsc import ALSC\ndiff --git a/utils/tuning/libtuning/modules/alsc/alsc.py b/utils/tuning/libtuning/modules/alsc/alsc.py\nnew file mode 100644\nindex 00000000..b708b28d\n--- /dev/null\n+++ b/utils/tuning/libtuning/modules/alsc/alsc.py\n@@ -0,0 +1,78 @@\n+# SPDX-License-Identifier: BSD-2-Clause\n+#\n+# Copyright (C) 2019, Raspberry Pi Ltd\n+# Copyright (C) 2022, Paul Elder <paul.elder@ideasonboard.com>\n+\n+from ..module import Module\n+\n+import libtuning as lt\n+import libtuning.utils as utils\n+\n+import numpy as np\n+\n+\n+class ALSC(Module):\n+ type = 'alsc'\n+ hr_name = 'ALSC (Base)'\n+ out_name = 'GenericALSC'\n+\n+ def __init__(self, *,\n+ debug: list,\n+ sector_shape: tuple,\n+ sector_x_gradient: lt.Gradient,\n+ sector_y_gradient: lt.Gradient,\n+ sector_average_function: lt.Average,\n+ smoothing_function: lt.Smoothing):\n+ super().__init__()\n+\n+ if (sector_x_gradient is lt.gradient.Linear and sector_x_remainder is None):\n+ raise ValueError('sector_x_remainder must be specified if sector_x_gradient is Linear')\n+\n+ if (sector_y_gradient is lt.gradient.Linear and sector_y_remainder is None):\n+ raise ValueError('sector_y_remainder must be specified if sector_y_gradient is Linear')\n+\n+ self.debug = debug\n+\n+ self.sector_shape = sector_shape\n+ self.sector_x_gradient = sector_x_gradient\n+ self.sector_y_gradient = sector_y_gradient\n+ self.sector_average_function = sector_average_function\n+\n+ self.smoothing_function = smoothing_function\n+\n+ def _enumerate_alsc_images(self, images):\n+ for image in images:\n+ if image.alsc_only:\n+ yield image\n+\n+ def _get_grid(self, channel, img_w, img_h):\n+ # List of number of pixels in each sector\n+ sectors_x = self.sector_x_gradient.distribute(img_w / 2, self.sector_shape[0])\n+ sectors_y = self.sector_y_gradient.distribute(img_h / 2, self.sector_shape[1])\n+\n+ grid = []\n+\n+ r = 0\n+ for y in sectors_y:\n+ c = 0\n+ for x in sectors_x:\n+ grid.append(self.sector_average_function.average(channel[r:r + y, c:c + x]))\n+ c += x\n+ r += y\n+\n+ return np.array(grid)\n+\n+ def _lsc_single_channel(self, channel: np.array,\n+ image: lt.Image, green_grid: np.array = None):\n+ grid = self._get_grid(channel, image.w, image.h)\n+ grid -= image.blacklevel_16\n+ if green_grid is None:\n+ table = np.reshape(1 / grid, self.sector_shape[::-1])\n+ else:\n+ table = np.reshape(green_grid / grid, self.sector_shape[::-1])\n+ table = self.smoothing_function.smoothing(table)\n+\n+ if green_grid is None:\n+ table = table / np.min(table)\n+\n+ return table, grid\n", "prefixes": [ "libcamera-devel", "v2", "02/11" ] }