Halcon图像与Bitmap相互转化

public class HImageHelper
{

public static Bitmap HImage2RGBBitmap(HObject ho_image)
{
HTuple width0, height0, type, width, height;
//获取图像尺寸
HOperatorSet.GetImageSize(ho_image, out width0, out height0);
//创建交错格式图像
HOperatorSet.InterleaveChannels(ho_image, out HObject InterImage, "argb", "match", 255);
HOperatorSet.GetImagePointer1(InterImage, out HTuple Pointer, out type, out width, out height);
IntPtr ptr = Pointer;
Bitmap res32 = new Bitmap(width / 4, height, width, PixelFormat.Format32bppArgb, ptr);

Bitmap res24 = new Bitmap(res32.Width, res32.Height, PixelFormat.Format24bppRgb);
Graphics graphics = Graphics.FromImage(res24);
graphics.DrawImage(res32, new Rectangle(0, 0, res32.Width, res32.Height));

res32.Dispose();

return res24;
}
public static Bitmap HImage2GrayBitmap(HObject image)
{
try
{
HOperatorSet.GetImagePointer1(image, out HTuple pointer, out HTuple type, out HTuple width, out HTuple height);
Bitmap bmpImage = new Bitmap(width.I, height.I, PixelFormat.Format8bppIndexed);
ColorPalette pal = bmpImage.Palette;
for (int i = 0; i < 256; i++)
{
pal.Entries[i] = Color.FromArgb(255, i, i, i);
}
bmpImage.Palette = pal;
BitmapData bitmapData = bmpImage.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.WriteOnly, PixelFormat.Format8bppIndexed);
int pixelSize = Bitmap.GetPixelFormatSize(bitmapData.PixelFormat) / 8;

Int32 newDataWidth = ((System.Drawing.Image.GetPixelFormatSize(PixelFormat.Format8bppIndexed) * width) + 7) / 8;

int stride = pixelSize * width;
IntPtr dst = bitmapData.Scan0;
IntPtr src = pointer;
int length = Math.Abs(bitmapData.Stride) * bmpImage.Height;
if (stride % 4 == 0)
{
byte[] data = new byte[length];
System.Runtime.InteropServices.Marshal.Copy(src, data, 0, length);
System.Runtime.InteropServices.Marshal.Copy(data, 0, dst, length);

}
else
{
stride = stride + 4 - stride % 4;
int length2 = width.I * pixelSize;
int count = length / stride;
for (int i = 0; i < count; i++)
{
byte[] data = new byte[length2];
System.Runtime.InteropServices.Marshal.Copy(src, data, 0, length2);
System.Runtime.InteropServices.Marshal.Copy(data, 0, dst, length2);
src += length2;
dst += stride;

}
}
bmpImage.UnlockBits(bitmapData);
return bmpImage;
}
catch (Exception)
{
return null;
}

}
public static HObject Bitmap2HImageColor(Bitmap bmp)
{
HObject image = new HObject();
try
{
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);

BitmapData srcBmpData = bmp.LockBits(rect, ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
HOperatorSet.GenImageInterleaved(out image, srcBmpData.Scan0, "bgr", bmp.Width, bmp.Height, 0, "byte", 0, 0, 0, 0, -1, 0);
bmp.UnlockBits(srcBmpData);

}
catch (Exception ex)
{
image = null;
}
finally
{
}
return image;
}
public static HObject Bitmap2HImageGray(Bitmap bmp)
{
HObject image = new HObject();
try
{
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);

BitmapData srcBmpData = bmp.LockBits(rect, ImageLockMode.ReadOnly, PixelFormat.Format8bppIndexed);

HOperatorSet.GenImage1(out image, "byte", bmp.Width, bmp.Height, srcBmpData.Scan0);
bmp.UnlockBits(srcBmpData);
}
catch (Exception ex)
{
image = null;
}
return image;
}

}