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44ea5b65c8
This change is in anticipation of the addition of a DenoiseAlgorithm base class which the SDN class will derive from. We want to match the metadata object name with the base class algorithm name. This renames: - SdnStatus metadata object to DenoiseStatus - "sdn.status" metadata string key to "denoise.status" - sdn_status.h header file to denoise_status.h Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* Copyright (C) 2019, Raspberry Pi (Trading) Limited
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*
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* sdn.cpp - SDN (spatial denoise) control algorithm
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*/
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#include "libcamera/internal/log.h"
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#include "../denoise_status.h"
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#include "../noise_status.h"
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#include "sdn.hpp"
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using namespace RPiController;
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using namespace libcamera;
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LOG_DEFINE_CATEGORY(RPiSdn)
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// Calculate settings for the spatial denoise block using the noise profile in
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// the image metadata.
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#define NAME "rpi.sdn"
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Sdn::Sdn(Controller *controller)
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: Algorithm(controller)
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{
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}
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char const *Sdn::Name() const
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{
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return NAME;
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}
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void Sdn::Read(boost::property_tree::ptree const ¶ms)
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{
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deviation_ = params.get<double>("deviation", 3.2);
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strength_ = params.get<double>("strength", 0.75);
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}
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void Sdn::Initialise() {}
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void Sdn::Prepare(Metadata *image_metadata)
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{
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struct NoiseStatus noise_status = {};
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noise_status.noise_slope = 3.0; // in case no metadata
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if (image_metadata->Get("noise.status", noise_status) != 0)
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LOG(RPiSdn, Warning) << "no noise profile found";
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LOG(RPiSdn, Debug)
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<< "Noise profile: constant " << noise_status.noise_constant
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<< " slope " << noise_status.noise_slope;
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struct DenoiseStatus status;
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status.noise_constant = noise_status.noise_constant * deviation_;
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status.noise_slope = noise_status.noise_slope * deviation_;
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status.strength = strength_;
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image_metadata->Set("denoise.status", status);
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LOG(RPiSdn, Debug)
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<< "programmed constant " << status.noise_constant
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<< " slope " << status.noise_slope
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<< " strength " << status.strength;
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}
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// Register algorithm with the system.
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static Algorithm *Create(Controller *controller)
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{
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return (Algorithm *)new Sdn(controller);
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}
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static RegisterAlgorithm reg(NAME, &Create);
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