using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using Emgu.CV;
using Emgu.CV.CvEnum;
namespace DormitoryFR
{
public static class MatExtension
{
public static dynamic GetValue(this Mat mat, int row, int col)
{
var value = CreateElement(mat.Depth);
Marshal.Copy(mat.DataPointer + (row * mat.Cols + col) * mat.ElementSize, value, 0, 1);
return value[0];
}
public static void SetValue(this Mat mat, int row, int col, dynamic value)
{
var target = CreateElement(mat.Depth, value);
Marshal.Copy(target, 0, mat.DataPointer + (row * mat.Cols + col) * mat.ElementSize, 1);
}
private static dynamic CreateElement(DepthType depthType, dynamic value)
{
var element = CreateElement(depthType);
element[0] = value;
return element;
}
private static dynamic CreateElement(DepthType depthType)
{
if (depthType == DepthType.Cv8S)
{
return new sbyte[1];
}
if (depthType == DepthType.Cv8U)
{
return new byte[1];
}
if (depthType == DepthType.Cv16S)
{
return new short[1];
}
if (depthType == DepthType.Cv16U)
{
return new ushort[1];
}
if (depthType == DepthType.Cv32S)
{
return new int[1];
}
if (depthType == DepthType.Cv32F)
{
return new float[1];
}
if (depthType == DepthType.Cv64F)
{
return new double[1];
}
return new float[1];
}
}
}rot_mat.at<double>(0, 2) += ex; заменяем на MatExtension.SetValue(rot_mat, 0, 2, (double)MatExtension.GetValue(rot_mat, 0, 2) + ex);