public static FFTImageDataModel FFT(JpegModel imageModel)
{
Image image = Image.FromFile(imageModel.file);
Bitmap bitmap = new Bitmap(image);
FFTImageDataModel fftImageModel = new FFTImageDataModel();
List <Color> colorList = new List <Color>();
for (int y = 0; y < bitmap.Height; ++y)
{
for (int x = 0; x < bitmap.Width; ++x)
{
colorList.Add(bitmap.GetPixel(x, y));
}
}
return(DoFFTOverImage(colorList));
}
private static FFTImageDataModel DoFFTOverImage(List <Color> colorsData)
{
int dataCount = 1024;
FFTImageDataModel fftImageDataModel = new FFTImageDataModel();
Complex[] dataR = new Complex[dataCount];
Complex[] dataG = new Complex[dataCount];
Complex[] dataB = new Complex[dataCount];
for (int i = 0; i < dataCount; ++i)
{
dataR[i] = new Complex(colorsData[i].R, 0);
dataG[i] = new Complex(colorsData[i].G, 0);
dataB[i] = new Complex(colorsData[i].B, 0);
}
FourierTransform.FFT(dataR, FourierTransform.Direction.Forward);
FourierTransform.FFT(dataG, FourierTransform.Direction.Forward);
FourierTransform.FFT(dataB, FourierTransform.Direction.Forward);
fftImageDataModel.R = GetFftDataModel(dataR);
fftImageDataModel.G = GetFftDataModel(dataG);
fftImageDataModel.B = GetFftDataModel(dataB);
return(fftImageDataModel);
}
