我正在使用 C# 进行图像处理，并且遇到两个主要错误:
- 错误:命名参数规范必须在指定所有固定参数之后出现
- 错误:System.Drawing.Size' 是一种“类型”，但像“变量”一样使用
这是我的代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Emgu.CV;
using Emgu.CV.Structure;
using Emgu.Util;
using Emgu.CV.CvEnum;
using Emgu.CV.GPU;
using Emgu.CV.UI;
namespace SNAKE_C_Sharp
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void imageBox1_Click(object sender, EventArgs e)
{
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
using (OpenFileDialog dialog = new OpenFileDialog())
{
dialog.Filter = "(*.*)|*.*";
if (dialog.ShowDialog() == DialogResult.OK)
{
pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
Image image = Image.FromFile(dialog.FileName);
pictureBox1.Image = image;
}
}
}
private void button2_Click(object sender, EventArgs e)
{
this.Close();
}
struct parameter
{
public double alpha { get; set; }
public double beta { get; set; }
public double gamma { get; set; }
};
unsafe private void button3_Click(object sender, EventArgs e)
{
{
int length = 1000;
MCvPoint2D64f* contour;
MCvPoint2D64f center = new MCvPoint2D64f();
var snake_param = new List<parameter>();
snake_param.Add(new parameter { alpha = 0.1, beta = 0.1, gamma = 0.1, });
//Image src_img = pictureBox1.Image;
IntPtr dst_img = new IntPtr();
//IntPtr src_img = Emgu.CV.CvInvoke.cvLoadImage("pictureBox1.Image", Emgu.CV.CvEnum.LOAD_IMAGE_TYPE.CV_LOAD_IMAGE_COLOR);
Bitmap bitmapp = new Bitmap("pictureBox1.Image");
Image<Bgr, byte> image = new Image<Bgr, byte>(bitmapp);
center.x = image.Width;
center.y = image.Height;
int i;
for (i = 0; i < length; i++)
{
contour[i].x = (int)(center.x * Math.Cos(2 * Math.PI * i / length) + center.x);
contour[i].y = (int)(center.y * Math.Sin(2 * Math.PI * i / length) + center.y);
}
for (i = 0; i < length - 1; i++)
{
CvInvoke.cvLine(dst_img, contour[i], contour[i + 1], new MCvScalar(255, 0, 0), 2, lineType: LINE_TYPE.EIGHT_CONNECTED,0);
}
CvInvoke.cvLine(dst_img, contour[length - 1], contour[0], new MCvScalar(255, 0, 0), 2, lineType: LINE_TYPE.EIGHT_CONNECTED, 0);
IntPtr src_img = image.Ptr;
CvInvoke.cvSnakeImage(src_img, contour, length, snake_param[1].alpha, snake_param[2].beta, snake_param[3].gamma, 1.0f, contour[i], System.Drawing.Size(15, 15), new MCvTermCriteria(1, 0.0), true);
CvInvoke.cvCvtColor(src_img, dst_img, COLOR_CONVERSION.GRAY2RGB);
for (i = 0; i < length - 1; i++)
{
CvInvoke.cvLine(dst_img, contour[i], contour[i + 1], new MCvScalar(255, 0, 0), 2, lineType: LINE_TYPE.EIGHT_CONNECTED, 0);
}
CvInvoke.cvLine(dst_img, contour[length - 1], contour[0], new MCvScalar(255, 0, 0), 2, lineType: LINE_TYPE.EIGHT_CONNECTED, 0);
pictureBox2.SizeMode = PictureBoxSizeMode.StretchImage;
Bitmap bitmappbb = new Bitmap("dst_img");
Image<Bgr, byte> imagee = new Image<Bgr, byte>(bitmapp);
pictureBox2.Image = bitmappbb;
}
}
private void imageBox1_Click_1(object sender, EventArgs e)
{
}
private void panAndZoomPictureBox1_Click(object sender, EventArgs e)
{
}
private void imageBox1_Click_2(object sender, EventArgs e)
{
}
}
}
如何调整以上错误？
最佳答案
这是导致错误 1 的问题之一
CvInvoke.cvLine(dst_img, contour[i], contour[i + 1], new MCvScalar(255, 0, 0), 2, lineType: LINE_TYPE.EIGHT_CONNECTED,0);
我会让它更具可读性......
CvInvoke.cvLine(
dst_img,
contour[i],
contour[i + 1],
new MCvScalar(255, 0, 0),
2,
lineType: LINE_TYPE.EIGHT_CONNECTED,
0
);
看到倒数第二行正在使用命名参数 ( lineType: )，但后面跟着一个非命名参数？编译器如何知道你的意思？
第二个错误如@LajosArpad所述，您需要添加new在您使用System.Drawing.Size(..)之前.
关于c# - 命名参数规范必须在指定所有固定参数之后出现，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21226518/