PathToImageSourceConverter.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Data;
using System.Windows.Media;
using System.Windows.Media.Imaging;

namespace LetterClassifier
{
    public class PathToImageSourceConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (targetType != typeof(ImageSource))
                throw new InvalidOperationException("Target type must be System.Windows.Media.ImageSource.");

            string filePath = value as string;

            try
            {
                BitmapImage img = new BitmapImage();
                img.BeginInit();
                img.UriSource = new Uri(filePath);
                img.EndInit();
                return img;
            }
            catch (Exception ex)
            {
                return DependencyProperty.UnsetValue;
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}