src/ipa/raspberrypi/controller/rpi/sdn.cpp


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/* SPDX-License-Identifier: BSD-2-Clause */
/*
 * Copyright (C) 2019-2021, Raspberry Pi Ltd
 *
 * sdn.cpp - SDN (spatial denoise) control algorithm
 */

#include <libcamera/base/log.h>

#include "../denoise_status.h"
#include "../noise_status.h"

#include "sdn.h"

using namespace RPiController;
using namespace libcamera;

LOG_DEFINE_CATEGORY(RPiSdn)

/*
 * Calculate settings for the spatial denoise block using the noise profile in
 * the image metadata.
 */

#define NAME "rpi.sdn"

Sdn::Sdn(Controller *controller)
	: DenoiseAlgorithm(controller), mode_(DenoiseMode::ColourOff)
{
}

char const *Sdn::name() const
{
	return NAME;
}

int Sdn::read(const libcamera::YamlObject &params)
{
	deviation_ = params["deviation"].get<double>(3.2);
	strength_ = params["strength"].get<double>(0.75);
	return 0;
}

void Sdn::initialise()
{
}

void Sdn::prepare(Metadata *imageMetadata)
{
	struct NoiseStatus noiseStatus = {};
	noiseStatus.noiseSlope = 3.0; /* in case no metadata */