private void UpdateCanvas()
{
Bitmap dstImage = new Bitmap(srcImage.Width, srcImage.Height);
Adjustment a = new Adjustment();
dstImage = a.Mapping((Bitmap)srcImage.Clone(), this.Map, this.ChannelMode);
this.panel1.BackgroundImage = dstImage;
this.FinalImage = (Bitmap)dstImage.Clone();
}