private void button2_Click(object sender, EventArgs e) { Bitmap originalImage = (Bitmap)Image.FromFile(openFile.FileName); Bitmap comingImage = null; switch (comboBox1.SelectedItem) { case "negatif": comingImage = processes.Negative((Bitmap)originalImage); break; case "gri": comingImage = processes.ConvertGray((Bitmap)originalImage); break; case "eşikleme": comingImage = processes.ConvertGray((Bitmap)originalImage); comingImage = processes.Thresholding((Bitmap)originalImage, 128); break; case "parlaklık": comingImage = processes.Brightness((Bitmap)originalImage, trackBar1.Value); break; } pictureBox2.Image = comingImage; }