Halcon 与 bitmap 互转

Halcon 与 bitmap 互转：

        public void Bitmap2HObjectBpp24(Bitmap bmp, out HObject image)
        {
            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;
            }
        }
        public void Bitmap2HObjectBpp8(Bitmap bmp, out HObject image)
        {
            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;
            }
        }
        public void HObject2Bpp24(HObject ho_image, out Bitmap res24)
        {
            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);  //"rgb", 4 * width0, 0     "argb", "match", 255
            //获取交错格式图像指针
            HOperatorSet.GetImagePointer1(InterImage, out HTuple Pointer, out type, out width, out height);
            IntPtr ptr = Pointer;
            //构建新Bitmap图像
            Bitmap res32 = new Bitmap(width / 4, height, width, PixelFormat.Format32bppArgb, ptr);  // Format32bppArgb     Format24bppRgb
            //32位Bitmap转24位
            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();
        }
        public void HObject2Bpp8_(HObject image, out Bitmap res)
        {
            HTuple hpoint, type, width, height;
            const int Alpha = 255;
            HOperatorSet.GetImagePointer1(image, out hpoint, out type, out width, out height);
            res = new Bitmap(width, height, PixelFormat.Format8bppIndexed);
            ColorPalette pal = res.Palette;
            for (int i = 0; i <= 255; i++)
            {
                pal.Entries[i] = Color.FromArgb(Alpha, i, i, i);
            }
            res.Palette = pal;
            Rectangle rect = new Rectangle(0, 0, width, height);
            BitmapData bitmapData = res.LockBits(rect, ImageLockMode.WriteOnly, PixelFormat.Format8bppIndexed);
            int PixelSize = Bitmap.GetPixelFormatSize(bitmapData.PixelFormat) / 8;
            IntPtr ptr1 = bitmapData.Scan0;
            IntPtr ptr2 = hpoint;
            int bytes = width * height;
            byte[] rgbvalues = new byte[bytes];
            System.Runtime.InteropServices.Marshal.Copy(ptr2, rgbvalues, 0, bytes);
            System.Runtime.InteropServices.Marshal.Copy(rgbvalues, 0, ptr1, bytes);
            res.UnlockBits(bitmapData);
        }