private: System::Void lowpassFilterToolStripMenuItem_Click(System::Object^  sender, System::EventArgs^  e)
	{
		int w = dataManager->GetImageWidth();
		int h = dataManager->GetImageHeight();

		// 利用傅立葉之平移性，平移頻率
		for (int i = 0; i < h; i++)
		{
			for (int j = 0; j < w; j++)
			{
				int valuePixeli = dataManager->GetInputImage()[i][j];
				valuePixeli = valuePixeli * pow((float)-1, (float)(i + j));
				dataManager->SetPixel(j, i, valuePixeli);
			}
		}

		//將算出頻率資訊傳入輸出影像
		fourierTransformMethod->LowpassFilter(dataManager->GetInputImage(), dataManager->GetOutputImage(),  dataManager->GetFreqReal(), dataManager->GetFreqImag(), h, w);
		Bitmap^ LPF = gcnew Bitmap(w, h);
		for (int i = 0; i < h; i++)
		{
			for (int j = 0; j < w; j++)
			{
				int valuePixeli = dataManager->GetOutputImage()[i][j];
				if (valuePixeli > 255)
				{
					valuePixeli = 255;
				}
				else if (valuePixeli < 0)
				{
					valuePixeli = 0;
				}
				LPF->SetPixel(j, i, Color::FromArgb(valuePixeli, valuePixeli, valuePixeli));
			}
		}
		pictureBox_OutputImage->Image = LPF;
	}