Image Imageimage;
Imageimage = System.Drawing.Image.FromFile(@"C:A.JPG");
Bitmap bitmap = new Bitmap(Imageimage);
bitmap.MakeTransparent(Color.White);
pictureBox1.Image = bitmap;
Image Imageimage;
Imageimage = System.Drawing.Image.FromFile(@"C:A.JPG");
Bitmap bitmap = new Bitmap(Imageimage);
bitmap.MakeTransparent(Color.White);
pictureBox1.Image = bitmap;