frame_utils.h

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#pragma once
 
#include "Frame/TFrame.h"
 
#include <cmath>
 
namespace ph
{
 
namespace frame_utils
{
 
// Converts HDR frame to LDR frame. Values outside [0, 1] will be clamped.
void to_LDR(const HdrRgbFrame& srcFrame, LdrRgbFrame* out_dstFrame);
 
// Converts LDR frame to HDR frame. Values will be in [0, 1].
void to_HDR(const LdrRgbFrame& srcFrame, HdrRgbFrame* out_dstFrame);
 
// Computes per-pixel absolute difference between frameA and frameB.
void abs_diff(const HdrRgbFrame& frameA, const HdrRgbFrame& frameB, HdrRgbFrame* out_result);
 
// Calculates Mean Squared Error (MSE) of an estimated frame.
real calc_MSE(const HdrRgbFrame& expected, const HdrRgbFrame& estimated);
 
// Calculates Root-Mean-Square Error (RMSE) of an estimated frame.
real calc_RMSE(const HdrRgbFrame& expected, const HdrRgbFrame& estimated);
 
// In-header Implementations:
 
inline real calc_RMSE(const HdrRgbFrame& expected, const HdrRgbFrame& estimated)
{
    return std::sqrt(calc_MSE(expected, estimated));
}
 
}// end namespace frame_utils
 
}// end namespace ph