/// <summary>
/// Cast bitmap to sitk image.
/// </summary>
/// <param name="image">bitmap</param>
/// <returns>sitk image</returns>
public static sitk.Image GetITKImageFromBitmap(Bitmap image)
{
BitmapData bitmapData = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, PixelFormat.Format8bppIndexed /*image.PixelFormat*/);
int bitmapByteSize = bitmapData.Stride * image.Height;
byte[] bitmapByteArray = new byte[bitmapByteSize];
uint width = (uint)image.Width;
uint height = (uint)image.Height;
Marshal.Copy(bitmapData.Scan0, bitmapByteArray, 0, bitmapByteSize);
image.UnlockBits(bitmapData);
sitk.Image sitkImage = new sitk.Image(width, height, sitk.PixelIDValueEnum.sitkUInt8);
IntPtr sitkImageBuffer = sitkImage.GetBufferAsUInt8();
Marshal.Copy(bitmapByteArray, 0, sitkImageBuffer, bitmapByteSize);
return(sitkImage);
}