c语言和halcon数据类型转换,C# 中Bitmap和Halcon中HObject数据类型的相互转换
C# 中Bitmap和Halcon中HObject数据类型的相互转换
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;
}
}
实际使用时，假如原图8位灰度图，那么BitmapToHObjectBpp8 和BitmapToHObjectBpp24的结果是一样的。而为24位彩色图时，只能用BitmapToHObjectBpp24。
可先得到Bitmap 图的PixelFormat ，而后再进行转换。
以下HObject to Bitmap部分参考：http://blog.csdn.net/miehuo/article/details/48751353
private void HObject2Bpp8(HObject image, out Bitmap res)
{
HTuple hpoint, type, width, height;
const int Alpha = 255;
int[] ptr = new int[2];
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;
ptr[0] = bitmapData.Scan0.ToInt32();
ptr[1] = hpoint.I;
if (width % 4 == 0)
CopyMemory(ptr[0], ptr[1], width * height * PixelSize);
else
{
for (int i = 0; i < height - 1; i++)
{
ptr[1] += width;
CopyMemory(ptr[0], ptr[1], width * PixelSize);
ptr[0] += bitmapData.Stride;
}
}
res.UnlockBits(bitmapData);
}
private void HObject2Bpp24(HObject image, out Bitmap res)
{
HTuple hred, hgreen, hblue, type, width, height;
HOperatorSet.GetImagePointer3(image, out hred, out hgreen, out hblue, out type, out width, out height);
res = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
Rectangle rect = new Rectangle(0, 0, width, height);
BitmapData bitmapData = res.LockBits(rect, ImageLockMode.ReadWrite, PixelFormat.Format32bppRgb);
unsafe
{
byte* bptr = (byte*)bitmapData.Scan0;
byte* r = ((byte*)hred.I);
byte* g = ((byte*)hgreen.I);
byte* b = ((byte*)hblue.I);
int lengh = width * height;
for (int i = 0; i
{
bptr[i * 4] = (b)[i];
bptr[i * 4 + 1] = (g)[i];
bptr[i * 4 + 2] = (r)[i];
bptr[i * 4 + 3] = 255;
}
}
res.UnlockBits(bitmapData);
}