/// <summary>
/// Sets the default image
/// </summary>
public void SetImage(Bitmap img)
{
reset();
if (img_org != null)
{
img_org.Dispose();
}
if (img_display != null)
{
img_display.Dispose();
}
img_org = img;
img_gray = new Frame(img);
Imaging.EqualizeHist(img_gray);
img_display = img_gray.GetBitmap();
using (var gr = CreateGraphics())
AutoScrollMinSize = new Size(img.Width, img.Height);
Invalidate();
}