StromTimeLapse c# image merger

using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Text.RegularExpressions;

//origional by KipliKipod
//https://mods.factorio.com/mod/StromTL/discussion/5ac9f59322c7c00009d18179

namespace Images
{
    class Program
    {
        private const int SquareSize = 512;
        private const int MaxSideLength = 23000; //max safe square size the Bitmap can be.

        static void Main(string[] args)
        {
            try
            {
                var path = Directory.GetCurrentDirectory();
                //var path = @"C:\FactorioModding\script-output\StromTL";
                var imagesDirectory = path + "\\images\\";
                if (!Directory.Exists(imagesDirectory))
                    Directory.CreateDirectory(imagesDirectory);

                Console.WriteLine("Proccecing " + path);
                var directoryPaths = Directory.GetDirectories(path);
                for (int i = 0; i < directoryPaths.Length; i++)
                {
                    var directoryPath = directoryPaths[i];
                    string[] numbers = Regex.Split(directoryPath, @"\D+");
                    if (numbers.Length == 4)
                    {
                        var index = int.Parse(numbers[1]);
                        var width = int.Parse(numbers[2]);
                        var height = int.Parse(numbers[3]);
                        var imageName = imagesDirectory + index + ".Png";
                        if (!File.Exists(imageName))
                        {
                            Console.WriteLine("Combining: " + directoryPath);
                            Combine(directoryPath, width, height, imageName);
                            Console.WriteLine("Done");
                        }
                        else
                            Console.WriteLine("Skipping: " + imageName);
                    }
                }
                Console.WriteLine();
                Console.WriteLine("All Done");
            }
            catch(Exception ex)
            {
                Console.Write(ex);
                Console.WriteLine();
            }
            Console.WriteLine();
            Console.WriteLine("Press any key to close.");
            Console.ReadKey();
        }

        private static void Combine(string path, int width, int height, string outputFile)
        {
            var maxSize = Math.Max((width * SquareSize), (height * SquareSize));
            decimal scale = Math.Min(1, (new Decimal(MaxSideLength) / maxSize));
            if(scale < 1)
            {
                Console.WriteLine("Scaling down to: " + (Convert.ToInt32(scale * 100)) + "%");
            }
            int squareSize = Math.Min(SquareSize, Convert.ToInt32(SquareSize * scale));

            using (Bitmap bmp = new Bitmap(width * squareSize, height * squareSize))
            {
                using (Graphics g = Graphics.FromImage(bmp))
                {
                    for (int y = 0; y < height; y++)
                    {
                        for (int x = 0; x < width; x++)
                        {
                            var index = x + y * width;
                            var indexImage = Image.FromFile(path + "\\" + index + ".png");
                            g.DrawImage(indexImage, x * squareSize, y * squareSize, squareSize, squareSize);
                            indexImage.Dispose();
                        }
                    }
                }

                bmp.Save(outputFile, ImageFormat.Png);
            }
        }
    }
}