From patchwork Thu Nov 11 11:06:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Michel Hautbois X-Patchwork-Id: 14565 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id B23B4C3251 for ; Thu, 11 Nov 2021 11:06:22 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 57690603B5; Thu, 11 Nov 2021 12:06:22 +0100 (CET) Authentication-Results: lancelot.ideasonboard.com; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="hrM3mETO"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 77C9B60376 for ; Thu, 11 Nov 2021 12:06:11 +0100 (CET) Received: from tatooine.ideasonboard.com (unknown [IPv6:2a01:e0a:169:7140:e627:8337:a781:d98]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 3502D180D; Thu, 11 Nov 2021 12:06:11 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1636628771; bh=4tNa6FTLtligxhLvhqy7ErCQZN9FVjZQl++ok5GJQiU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hrM3mETOJxJb0mYIEf7dbbF7Q+q5C7jv6syIFdv628LmGbDAFWssedfTrYtFV76xa GaBh7v6VzwYXgm1RI7HMSprbizIhXtSUWZheA9blZ+iUzjZOZ/U7SQnrFExBdgYiLD oie5jHBZX2QtOB5Vz8mCNtqvcziG9JgdKJXeF554= From: Jean-Michel Hautbois To: libcamera-devel@lists.libcamera.org Date: Thu, 11 Nov 2021 12:06:01 +0100 Message-Id: <20211111110605.105202-11-jeanmichel.hautbois@ideasonboard.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211111110605.105202-1-jeanmichel.hautbois@ideasonboard.com> References: <20211111110605.105202-1-jeanmichel.hautbois@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v3 10/14] ipa: ipu3: awb: Add support for color temperature X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" The AWB estimates the color temperature, but it is not used at all. It can be useful for debug purpose at least, but also for lux estimation later, to be able to know the temperature estimated for a given frame. Add a new member to the IPAFrameContext::awb for this purpose, and update the value in AWB. Signed-off-by: Jean-Michel Hautbois Reviewed-by: Kieran Bingham --- src/ipa/ipu3/algorithms/awb.cpp | 1 + src/ipa/ipu3/ipa_context.cpp | 3 +++ src/ipa/ipu3/ipa_context.h | 2 ++ 3 files changed, 6 insertions(+) diff --git a/src/ipa/ipu3/algorithms/awb.cpp b/src/ipa/ipu3/algorithms/awb.cpp index a4114659..c7bcb20e 100644 --- a/src/ipa/ipu3/algorithms/awb.cpp +++ b/src/ipa/ipu3/algorithms/awb.cpp @@ -385,6 +385,7 @@ void Awb::process(IPAContext &context, const ipu3_uapi_stats_3a *stats) context.frameContext.awb.gains.blue = asyncResults_.blueGain; context.frameContext.awb.gains.green = asyncResults_.greenGain; context.frameContext.awb.gains.red = asyncResults_.redGain; + context.frameContext.awb.temperatureK = asyncResults_.temperatureK; } constexpr uint16_t Awb::threshold(float value) diff --git a/src/ipa/ipu3/ipa_context.cpp b/src/ipa/ipu3/ipa_context.cpp index a7ff957d..99caf9ad 100644 --- a/src/ipa/ipu3/ipa_context.cpp +++ b/src/ipa/ipu3/ipa_context.cpp @@ -117,6 +117,9 @@ namespace libcamera::ipa::ipu3 { * * \var IPAFrameContext::awb.gains.blue * \brief White balance gain for B channel + * + * \var IPAFrameContext::awb.temperatureK + * \brief Estimated color temperature */ /** diff --git a/src/ipa/ipu3/ipa_context.h b/src/ipa/ipu3/ipa_context.h index a5a19800..fd97e240 100644 --- a/src/ipa/ipu3/ipa_context.h +++ b/src/ipa/ipu3/ipa_context.h @@ -45,6 +45,8 @@ struct IPAFrameContext { double green; double blue; } gains; + + double temperatureK; } awb; struct {