image.h

#include <string>
#include <vector>
#include <stdio.h>
#include <iostream>
#include <complex>
#include <queue>
#include <thread>

using namespace std::complex_literals;

enum Mode {forward, inverse};
enum Color {red, green, blue};


typedef std::vector<std::complex<float>> ComplexVec;
typedef std::complex<float> ComplexNum;
constexpr float PI = 3.141592F;

class Image{
    private:
        std::string filename;
        std::vector<std::vector<std::vector<ComplexNum>>> rawimage;
        std::vector<ComplexVec> bwimage;

        void PPMToArray(std::string filename);

        ComplexVec ditfft(ComplexVec &slice, Mode mode);

        ComplexVec fft(ComplexVec &slice);

        ComplexVec ifft(ComplexVec &slice);

        float GetThreshold(Color channel, int ratio);

        void ZeroOut(Color channel, float threshold);

        void fft2(std::vector<ComplexVec> &channel);

        void ifft2(std::vector<ComplexVec> &channel);

    public:
        Image(std::string filename);

        void Compress(int ratio);

        void ImageToPPM();
};