C# OpenCvSharp 车牌颜色识别

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效果

项目

代码

using OpenCvSharp;
using System;
using System.Diagnostics;
using System.Drawing;
using System.Windows.Forms;

namespace OpenCvSharp_Demo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        string fileFilter = "图片|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";
        string image_path = "";
        Mat image;

        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter = fileFilter;

            ofd.InitialDirectory = Application.StartupPath + "\\test_img";

            if (ofd.ShowDialog() != DialogResult.OK) return;
            pictureBox1.Image = null;
            image_path = ofd.FileName;
            pictureBox1.Image = new Bitmap(image_path);
            textBox1.Text = "";
            image = new Mat(image_path);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            image_path = "test_img/1.jpg";
            pictureBox1.Image = new Bitmap(image_path);
            image = new Mat(image_path);
        }

        PlateColorCls plateColorCls = new PlateColorCls();

        private void button3_Click(object sender, EventArgs e)
        {
            if (image_path == "")
            {
                return;
            }
            Stopwatch stopwatch = new Stopwatch();
            stopwatch.Start();
            string plateColor = plateColorCls.GetPlateColor(image);
            stopwatch.Stop();
            textBox1.Text = "耗时:\t\t" + stopwatch.ElapsedMilliseconds + "ms\r\n";
            textBox1.Text += "号牌颜色:\t" + plateColor + "\r\n";
            textBox1.Text += "-----------------------------\r\n";
            textBox1.Text += plateColorCls.GetPixelCountInfo();
        }
    }
}

using OpenCvSharp;
using System;
using System.Diagnostics;
using System.Drawing;
using System.Windows.Forms;
 
namespace OpenCvSharp_Demo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        string fileFilter = "图片|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";
        string image_path = "";
        Mat image;
 
        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter = fileFilter;
 
            ofd.InitialDirectory = Application.StartupPath + "\\test_img";
 
            if (ofd.ShowDialog() != DialogResult.OK) return;
            pictureBox1.Image = null;
            image_path = ofd.FileName;
            pictureBox1.Image = new Bitmap(image_path);
            textBox1.Text = "";
            image = new Mat(image_path);
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            image_path = "test_img/1.jpg";
            pictureBox1.Image = new Bitmap(image_path);
            image = new Mat(image_path);
        }
 
        PlateColorCls plateColorCls = new PlateColorCls();
 
        private void button3_Click(object sender, EventArgs e)
        {
            if (image_path == "")
            {
                return;
            }
            Stopwatch stopwatch = new Stopwatch();
            stopwatch.Start();
            string plateColor = plateColorCls.GetPlateColor(image);
            stopwatch.Stop();
            textBox1.Text = "耗时:\t\t" + stopwatch.ElapsedMilliseconds + "ms\r\n";
            textBox1.Text += "号牌颜色:\t" + plateColor + "\r\n";
            textBox1.Text += "-----------------------------\r\n";
            textBox1.Text += plateColorCls.GetPixelCountInfo();
        }
    }
}

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