//public static bool CopyBitmap(Bitmap src, Bitmap dest)
//{
// BitmapData dpt = dest.LockBits(new Rectangle(0, 0, dest.Width, dest.Height), ImageLockMode.WriteOnly, dest.PixelFormat);
// BitmapData spt = src.LockBits(new Rectangle(0, 0, src.Width, src.Height), ImageLockMode.ReadOnly, src.PixelFormat);
// win32gdi.CopyMemory(dpt.Scan0, spt.Scan0, (uint)(spt.Height * spt.Stride));
// src.UnlockBits(spt);
// dest.UnlockBits(dpt);
// return true;
//}
/// <summary>
/// 将IplImage 格式转为.NET Bitmap对象，注意在这个版本中不再支持 256色位图
/// </summary>
/// <param name="Image">IplImage结构图像的指针</param>
/// <returns>.NET Bitmap对象</returns>
public static Bitmap IplImageToBitmap(/* IplImage * */ IntPtr hIplImg)
{
if (hIplImg != IntPtr.Zero)
{
try
{
cxtypes.IplImage IplImg = (cxtypes.IplImage)Marshal.PtrToStructure(hIplImg, typeof(cxtypes.IplImage));
int bpp = IplImg.nChannels * 8;
if (IplImg.width <= 0 && IplImg.height <= 0 && !(bpp == 8 || bpp == 24 || bpp == 32))
{
System.Console.Out.WriteLine("IplImageToBitmap: IplImg.width=" + IplImg.width + ",IplImg.height=" + IplImg.height + ",bpp=" + bpp);
throw new Exception("图片格式错误或不支持!");
}
PixelFormat fmt;
if (bpp == 8)//需要添加调色板 还没有做
{
fmt = PixelFormat.Format8bppIndexed;
}
else if (bpp == 24)
{
fmt = PixelFormat.Format24bppRgb;
}
else
{
fmt = PixelFormat.Format32bppRgb;
}
Bitmap bmp = new Bitmap(IplImg.width, IplImg.height, fmt);
BitmapData pt = bmp.LockBits(new Rectangle(0, 0, IplImg.width, IplImg.height),
ImageLockMode.WriteOnly, fmt);
if (IplImg.origin == 0) //1 - bottom-left origin (Windows bitmaps style)
{
win32gdi.CopyMemory(pt.Scan0, IplImg.imageData, (uint)(IplImg.height * IplImg.widthStep)); // copies the bitmap
}
else //0 - top-left origin
{
for (int i = 0; i < IplImg.height; i++)
{
IntPtr pSrc = (IntPtr)(((uint)IplImg.imageData) + (IplImg.height - 1 - i) * IplImg.widthStep);
IntPtr pDst = (IntPtr)(((uint)pt.Scan0) + (i) * IplImg.widthStep);
win32gdi.CopyMemory(pDst, pSrc, (uint)IplImg.widthStep);
}
}
bmp.UnlockBits(pt);
return(bmp);
}
catch (Exception e)
{
System.Console.Out.WriteLine("IplImageToBitmap Error：" + e.Message);
//highgui.cvSaveImage("C:\\IplImageToBitmap_Error.bmp", Image);
}
}
return(null);
}
public static void IplImageToHBitmap(/* IplImage * */ IntPtr Image, ref IntPtr bmp)
{
cxtypes.IplImage IplImg = (cxtypes.IplImage)Marshal.PtrToStructure(Image, typeof(cxtypes.IplImage));
int bpp = IplImg.nChannels * 8;
if (IplImg.width <= 0 && IplImg.height <= 0 && !(bpp == 8 || bpp == 24 || bpp == 32))
{
throw new Exception("图片格式错误或不支持!");
}
if (bmp == IntPtr.Zero)
{
bmp = IplImageToHBitmap(Image);
}
else
{
win32gdi.BITMAP bmpi = new win32gdi.BITMAP();
win32gdi.GetBitmapObject(bmp, win32gdi.SIZE_BITMAP, ref bmpi);
if (IplImg.origin == 1) //1 - bottom-left origin (Windows bitmaps style)
{
win32gdi.CopyMemory(bmpi.bmBits, IplImg.imageData, (uint)(IplImg.height * IplImg.widthStep)); // copies the bitmap
}
else //0 - top-left origin
{
for (int i = 0; i < IplImg.height; i++)
{
IntPtr pSrc = (IntPtr)(((uint)IplImg.imageData) + (IplImg.height - 1 - i) * IplImg.widthStep);
IntPtr pDst = (IntPtr)(((uint)(bmpi.bmBits)) + (i) * IplImg.widthStep);
win32gdi.CopyMemory(pDst, pSrc, (uint)IplImg.widthStep);
}
}
}
}
public static bool IplImageToBitmap(IntPtr hIplImg, Bitmap bmp)
{
if (hIplImg != IntPtr.Zero)
{
try
{
cxtypes.IplImage IplImg = (cxtypes.IplImage)Marshal.PtrToStructure(hIplImg, typeof(cxtypes.IplImage));
BitmapData pt = bmp.LockBits(new Rectangle(0, 0, IplImg.width, IplImg.height), ImageLockMode.WriteOnly, bmp.PixelFormat);
if (IplImg.origin == 0) //1 - bottom-left origin (Windows bitmaps style)
{
win32gdi.CopyMemory(pt.Scan0, IplImg.imageData, (uint)(IplImg.height * IplImg.widthStep)); // copies the bitmap
}
else //0 - top-left origin
{
for (int i = 0; i < IplImg.height; i++)
{
IntPtr pSrc = (IntPtr)(((uint)IplImg.imageData) + (IplImg.height - 1 - i) * IplImg.widthStep);
IntPtr pDst = (IntPtr)(((uint)pt.Scan0) + (i) * IplImg.widthStep);
win32gdi.CopyMemory(pDst, pSrc, (uint)IplImg.widthStep);
}
}
bmp.UnlockBits(pt);
return(true);
}
catch (Exception e)
{
System.Console.Out.WriteLine("IplImageToBitmap Error：" + e.Message);
//highgui.cvSaveImage("C:\\IplImageToBitmap_Error.bmp", Image);
}
}
return(false);
}
/// <summary>
/// 将RGB24格式排列的数据转为OpenCv格式的图像
/// </summary>
/// <param name="buff">RGB24格式图像数据</param>
/// <param name="Width">图像宽度</param>
/// <param name="Height">图像高度</param>
/// <returns>指向IplImage结构的指针</returns>
public static IntPtr RGB24ToIplImage(byte[] buff, int Width, int Height)
{
int nChannels = 3;
int depth = (int)cxtypes.IPL_DEPTH_8U;
IntPtr img = cvcore.cvCreateImage(cxtypes.cvSize(Width, Height), depth, nChannels);
cxtypes.IplImage rImage = (cxtypes.IplImage)Marshal.PtrToStructure(img, typeof(cxtypes.IplImage));
rImage.origin = 1;
Marshal.Copy(buff, 0, rImage.imageData, rImage.nSize);
return(img);
}
/// <summary>
/// 将OpenCV 图片格式转为 Windows 位图对象HBITMAP，注意在这个版本中不再支持 256色位图
/// </summary>
/// <param name="Image">传入的OpenCV图形</param>
/// <returns>返回Windows HBITMAP GDI对象</returns>
public static /* HBITMAP */ IntPtr IplImageToHBitmap(/* IplImage * */ IntPtr hIplImg)
{
cxtypes.IplImage IplImg = (cxtypes.IplImage)Marshal.PtrToStructure(hIplImg, typeof(cxtypes.IplImage));
int bpp = IplImg.nChannels * 8;
if (IplImg.width <= 0 && IplImg.height <= 0 && !(bpp == 8 || bpp == 24 || bpp == 32))
{
throw new Exception("图片格式错误或不支持!");
}
IntPtr hBitmap = (IntPtr)0;
IntPtr ppvBits = (IntPtr)0;
win32gdi.BITMAPINFO bmi = new win32gdi.BITMAPINFO();
bmi.biSize = 40; // Needed for RtlMoveMemory()
bmi.biBitCount = (short)bpp; // Number of bits
bmi.biPlanes = 1; // Number of planes
bmi.biWidth = IplImg.width; // Width of our new bitmap
bmi.biHeight = IplImg.height; // (IplImg.origin == 0) ? Math.Abs(IplImg.height) : -Math.Abs(IplImg.height); //IplImg.height; // Height of our new bitmap
hBitmap = win32gdi.CreateDIBSection(new IntPtr(0), bmi, 0, out ppvBits, IntPtr.Zero, 0);
if (IplImg.origin == 1) //1 - bottom-left origin (Windows bitmaps style)
{
win32gdi.CopyMemory(ppvBits, IplImg.imageData, (uint)(IplImg.height * IplImg.widthStep)); // copies the bitmap
}
else //0 - top-left origin
{
for (int i = 0; i < IplImg.height; i++)
{
IntPtr pSrc = (IntPtr)(((uint)IplImg.imageData) + (IplImg.height - 1 - i) * IplImg.widthStep);
IntPtr pDst = (IntPtr)(((uint)ppvBits) + (i) * IplImg.widthStep);
win32gdi.CopyMemory(pDst, pSrc, (uint)IplImg.widthStep);
}
}
return(hBitmap);
}
