void CImageToolDoc::OnFourierFft()
{
    int w = m_Dib.GetWidth();
    int h = m_Dib.GetHeight();

    if (!IsPowerOf2(w) || !IsPowerOf2(h))
    {
        AfxMessageBox(_T("가로 또는 세로의 크기가 2의 승수가 아닙니다."));
        return;
    }

    CWaitCursor wait;

    CONVERT_DIB_TO_BYTEIMAGE(m_Dib, img)

    IppFourier fourier;
    fourier.SetImage(img);

    DWORD t1 = timeGetTime();
    fourier.FFT(1);

#ifdef SHOW_SPECTRUM_PHASE_IMAGE
    IppByteImage imgSpec;
    fourier.GetSpectrumImage(imgSpec);

    CONVERT_IMAGE_TO_DIB(imgSpec, dibSpec)
    AfxNewBitmap(dibSpec);

    IppByteImage imgPhase;
    fourier.GetPhaseImage(imgPhase);

    CONVERT_IMAGE_TO_DIB(imgPhase, dibPhase)
    AfxNewBitmap(dibPhase);
#endif

    fourier.FFT(-1);
    DWORD t2 = timeGetTime();

    IppByteImage img2;
    fourier.GetImage(img2);

    CONVERT_IMAGE_TO_DIB(img2, dib)

    AfxPrintInfo(_T("[푸리에변환/FFT] 입력 영상: %s, 입력 영상 크기: %dx%d, 처리 시간: %dmsec"),
              GetTitle(), w, h, t2 - t1);

    AfxNewBitmap(dib);

}