/// <summary>
/// 将IplImage指针转换成Emgucv中的Image对象；
/// 注意：这里需要您自己根据IplImage中的depth和nChannels来决定
/// </summary>
/// <typeparam name="TColor">Color type of this image (either Gray, Bgr, Bgra, Hsv, Hls, Lab, Luv, Xyz or Ycc)</typeparam>
/// <typeparam name="TDepth">Depth of this image (either Byte, SByte, Single, double, UInt16, Int16 or Int32)</typeparam>
/// <param name="ptr">IplImage指针</param>
/// <returns>返回Image对象</returns>
public static Image<TColor, TDepth> IplImagePointerToEmgucvImage<TColor, TDepth>(IntPtr ptr)
where TColor : struct, IColor
where TDepth : new()
{
MIplImage mi = IplImagePointerToMIplImage(ptr);
return new Image<TColor, TDepth>(mi.width, mi.height, mi.widthStep, mi.imageData);
}
/// <summary>
/// 将IplImage指针转换成Emgucv中的IImage接口；
/// 1通道对应灰度图像，3通道对应BGR图像，4通道对应BGRA图像。
/// 注意：3通道可能并非BGR图像，而是HLS,HSV等图像
/// </summary>
/// <param name="ptr">IplImage指针</param>
/// <returns>返回IImage接口</returns>
public static IImage IplImagePointToEmgucvIImage(IntPtr ptr)
{
MIplImage mi = IplImagePointerToMIplImage(ptr);
Type tColor;
Type tDepth;
string unsupportedDepth = "不支持的像素位深度IPL_DEPTH";
string unsupportedChannels = "不支持的通道数（仅支持1，2，4通道）";
switch (mi.nChannels)
{
case 1:
tColor = typeof(Gray);
switch (mi.depth)
{
case IPL_DEPTH.IPL_DEPTH_8U:
tDepth = typeof(Byte);
return new Image<Gray, Byte>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_16U:
tDepth=typeof(UInt16);
return new Image<Gray, UInt16>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_16S:
tDepth = typeof(Int16);
return new Image<Gray, Int16>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_32S:
tDepth = typeof(Int32);
return new Image<Gray, Int32>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_32F:
tDepth = typeof(Single);
return new Image<Gray, Single>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_64F:
tDepth = typeof(Double);
return new Image<Gray, Double>(mi.width, mi.height, mi.widthStep, mi.imageData);
default:
throw new NotImplementedException(unsupportedDepth);
}
case 3:
tColor = typeof(Bgr);
switch (mi.depth)
{
case IPL_DEPTH.IPL_DEPTH_8U:
tDepth = typeof(Byte);
return new Image<Bgr, Byte>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_16U:
tDepth = typeof(UInt16);
return new Image<Bgr, UInt16>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_16S:
tDepth = typeof(Int16);
return new Image<Bgr, Int16>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_32S:
tDepth = typeof(Int32);
return new Image<Bgr, Int32>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_32F:
tDepth = typeof(Single);
return new Image<Bgr, Single>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_64F:
tDepth = typeof(Double);
return new Image<Bgr, Double>(mi.width, mi.height, mi.widthStep, mi.imageData);
default:
throw new NotImplementedException(unsupportedDepth);
}
case 4:
tColor = typeof(Bgra);
switch (mi.depth)
{
case IPL_DEPTH.IPL_DEPTH_8U:
tDepth = typeof(Byte);
return new Image<Bgra, Byte>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_16U:
tDepth = typeof(UInt16);
return new Image<Bgra, UInt16>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_16S:
tDepth = typeof(Int16);
return new Image<Bgra, Int16>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_32S:
tDepth = typeof(Int32);
return new Image<Bgra, Int32>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_32F:
tDepth = typeof(Single);
return new Image<Bgra, Single>(mi.width, mi.height, mi.widthStep, mi.imageData);
case IPL_DEPTH.IPL_DEPTH_64F:
tDepth = typeof(Double);
return new Image<Bgra, Double>(mi.width, mi.height, mi.widthStep, mi.imageData);
default:
throw new NotImplementedException(unsupportedDepth);
}
default:
throw new NotImplementedException(unsupportedChannels);
}
}
/// <summary>
/// 将Emgucv中的Image对象转换成IplImage指针；
/// </summary>
/// <typeparam name="TColor">Color type of this image (either Gray, Bgr, Bgra, Hsv, Hls, Lab, Luv, Xyz or Ycc)</typeparam>
/// <typeparam name="TDepth">Depth of this image (either Byte, SByte, Single, double, UInt16, Int16 or Int32)</typeparam>
/// <param name="image">Image对象</param>
/// <returns>返回IplImage指针</returns>
public static IntPtr EmgucvImageToIplImagePointer<TColor, TDepth>(Image<TColor, TDepth> image)
where TColor : struct, IColor
where TDepth : new()
{
return image.Ptr;
}
