sort jpegs by average saturation in csharp

main.cs
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using AForge.Imaging;
using AForge.Imaging.Filters;
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main.cs
private static double GetSaturation(Bitmap image)
{
    HSLFiltering filter = new HSLFiltering();
    filter.Saturation = 1.0;
    filter.ApplyInPlace(image);

    HSL hsl;
    double saturationSum = 0;

    for (int x = 0; x < image.Width; x++)
    {
        for (int y = 0; y < image.Height; y++)
        {
            hsl = new HSL(image.GetPixel(x, y));
            saturationSum += hsl.Saturation;
        }
    }

    return saturationSum / (image.Width * image.Height);
}
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main.cs
List<string> filePaths = new List<string>();
string directoryPath = @"C:\Images\MyJpegs";

foreach (string filePath in Directory.GetFiles(directoryPath, "*.jpg"))
{
    filePaths.Add(filePath);
}
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main.cs
Dictionary<string, double> saturationDict = new Dictionary<string, double>();
foreach (string filePath in filePaths)
{
    Bitmap image = new Bitmap(filePath);
    double saturation = GetSaturation(image);
    saturationDict[filePath] = saturation;
}
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main.cs
var sortedDict = saturationDict.OrderBy(x => x.Value); // ascending order
var sortedDict = saturationDict.OrderByDescending(x => x.Value); // descending order
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main.cs
foreach (KeyValuePair<string, double> entry in sortedDict)
{
    Console.WriteLine(entry.Key);
}
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