IWarper.h

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#pragma once
 
#include "IDescriptor.h"
 
namespace fsdk {
    struct EyesEstimation;
    struct GazeEstimation;
}
 
namespace fsdk {
    
#ifndef DOXYGEN_SHOULD_SKIP_THIS
    DECLARE_SMARTPTR(IWarper);
#endif
    
    struct Transformation {
        Vector2<float> centerP = {0, 0};        //From 0, scaled
        float angleDeg = 0;
        float scale = 0;
        Vector2<int> detectionTopLeft = {0, 0}; //From 0, original size
 
        bool isValid = false;
    };
    
    struct IWarper : IRefCounted {
        virtual Transformation
        createTransformation(
            const Detection& detection,
            const Landmarks5& landmarks) const noexcept = 0;
        
        virtual Result<FSDKError>
        warp(
            const Image& image,
            const Transformation& transformation,
            Image& transformedImage) const noexcept = 0;
        
        virtual Result<FSDKError>
        warp(
            const Landmarks5& landmarks,
            const Transformation& transformation,
            Landmarks5& transformedLandmarks) const noexcept = 0;
        
        virtual Result<FSDKError>
        warp(
            const Landmarks68& landmarks68,
            const Transformation& transformation,
            Landmarks68& transformedLandmarks68) const noexcept = 0;
        
        virtual Result<FSDKError>
        unwarp(
            const EyesEstimation& eyesEstimationInWarpCoordinates,
            const Transformation& transformation,
            EyesEstimation& eyesEstimation) const noexcept = 0;
        
        virtual Result<FSDKError>
        unwarp(
            const Landmarks5& warpedLandmarks5,
            const Transformation& transformation,
            Landmarks5& landmarks5) const noexcept = 0;
        
        virtual Result<FSDKError>
        unwarp(
            const Landmarks68& warpedLandmarks68,
            const Transformation& transformation,
            Landmarks68& landmarks68) const noexcept = 0;
 
        virtual fsdk::Result<FSDKError>
        unwarp(
            const fsdk::GazeEstimation& warpedAngles,
            const Transformation& transformation,
            fsdk::GazeEstimation& angles
        ) const noexcept = 0;
    };
    
}