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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2019, Raspberry Pi (Trading) Limited
*
* sdn.cpp - SDN (spatial denoise) control algorithm
*/
#include "../noise_status.h"
#include "../sdn_status.h"
#include "sdn.hpp"
using namespace RPi;
// Calculate settings for the spatial denoise block using the noise profile in
// the image metadata.
#define NAME "rpi.sdn"
Sdn::Sdn(Controller *controller)
: Algorithm(controller)
{
}
char const *Sdn::Name() const
{
return NAME;
}
void Sdn::Read(boost::property_tree::ptree const ¶ms)
{
deviation_ = params.get<double>("deviation", 3.2);
strength_ = params.get<double>("strength", 0.75);
}
void Sdn::Initialise() {}
void Sdn::Prepare(Metadata *image_metadata)
{
struct NoiseStatus noise_status = {};
noise_status.noise_slope = 3.0; // in case no metadata
if (image_metadata->Get("noise.status", noise_status) != 0)
RPI_WARN("Sdn: no noise profile found");
RPI_LOG("Noise profile: constant " << noise_status.noise_constant
<< " slope "
<< noise_status.noise_slope);
struct SdnStatus status;
status.noise_constant = noise_status.noise_constant * deviation_;
status.noise_slope = noise_status.noise_slope * deviation_;
status.strength = strength_;
image_metadata->Set("sdn.status", status);
RPI_LOG("Sdn: programmed constant " << status.noise_constant
<< " slope " << status.noise_slope
<< " strength "
<< status.strength);
}
// Register algorithm with the system.
static Algorithm *Create(Controller *controller)
{
return (Algorithm *)new Sdn(controller);
}
static RegisterAlgorithm reg(NAME, &Create);
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