Halcon 和 C# 联合编程 - 图像变量的相互转换(HObject、HImage、B...

zwjob · 发表于 2019-1-17 11:23:25

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下面代码是我在搜索 get_image_pointer1 过程中得到，给我带来了一些灵感。

/// <summary>
/// 灰度图像变量 HObject -> Bitmap
/// 原文：https://blog.csdn.net/bingbingxie1/article/details/83344704
/// </summary>
public static Bitmap HObject2Bitmap(HObject ho)
{
try
{
      HTuple type, width, height, pointer;
      //HOperatorSet.AccessChannel(ho, out ho, 1);
      HOperatorSet.GetImagePointer1(ho, out pointer, out type, out width, out height);
      //himg.GetImagePointer1(out type, out width, out height);

      Bitmap bmp = new Bitmap(width.I, height.I, PixelFormat.Format8bppIndexed);
      ColorPalette pal = bmp.Palette;
      for (int i = 0; i <= 255; i++)
      {
         pal.Entries[i] = Color.FromArgb(255, i, i, i);
      }
      bmp.Palette = pal;
      BitmapData bitmapData = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.WriteOnly, PixelFormat.Format8bppIndexed);
      int PixelSize = Bitmap.GetPixelFormatSize(bitmapData.PixelFormat) / 8;
      int stride = bitmapData.Stride;
      int ptr = bitmapData.Scan0.ToInt32();
      for (int i = 0; i < height; i++)
      {
         CopyMemory(ptr, pointer, width * PixelSize);
         pointer += width;
         ptr += bitmapData.Stride;
      }

      bmp.UnlockBits(bitmapData);
      return bmp;
}
catch (Exception exc)
{
      return null;
}
}
/// <summary>
/// 灰度图像变量 HObject -> HImage
/// 原文：https://blog.csdn.net/pudongdong/article/details/53574742
/// </summary>
public HImage HObject2HImage(Hobject hobject)
{
HImage image;
HTuple type, width, height, pointer;
gHOperatorSet.GetImagePointer1(ho, out pointer, out type, out width, out height);
image.GenImage1(type, width, height, pointer);
return image;
}