ML.NET 图像分类

参考文档：https://www.cnblogs.com/mq0036/p/18302572

using MLNET_Image;
using static MLNET_Image.MLModel1;

namespace MLNET.Image
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }

        private void btnSelectImage_Click(object sender, EventArgs e)
        {
            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
                openFileDialog.Title = "Select Image";
                openFileDialog.Filter = "Image Files (*.jpg, *.png, *.bmp)|*.jpg;*.png;*.bmp|All Files (*.*)|*.*";

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    // 获取用户选择的文件路径
                    string selectedImagePath = openFileDialog.FileName;

                    // 从文件加载图片
                    System.Drawing.Image img = System.Drawing.Image.FromFile(openFileDialog.FileName);
                    this.pictureBox1.Image = img;

                    var imageBytes = File.ReadAllBytes(selectedImagePath);
                    ModelInput sampleData = new MLModel1.ModelInput()
                    {
                        ImageSource = imageBytes,
                    };

                    //Load model and predict output
                    var result = MLModel1.Predict(sampleData);

                    var label = result.PredictedLabel;
                    var score = MLModel1.GetSortedScoresWithLabels(result).Where(x => x.Key == label).First().Value; 

                    this.lblResult.Text = result.PredictedLabel + " " + score; // 格式化为百分比
                }
            }
        }
    }
}