private void 傅里叶平均值ToolStripMenuItem_Click(object sender, EventArgs e) { checkPictureBox1(); if (!valid) { return; } Bitmap bit = new Bitmap(pictureBox1.Image); bit = scale2SquareSize(bit); pictureBox2.Refresh(); Bitmap graybit = GraphicClass.convertRGB2Gray(bit); int width = graybit.Width; int height = graybit.Height; label5.Text = width.ToString() + " × " + height.ToString(); label6.Text = GraphicClass.aveValue(bit, GraphicClass.fft2d(bit, false)).ToString(); pictureBox2.Image = GraphicClass.complex2Gray(GraphicClass.fft2d(bit, true), width, height); // 跳到对应信息显示区域 tabControl1.SelectedIndex = 1; }