/// <summary>
/// Exports every Image object inside the Image[] to a directory using a specific format (pnm or pgm)
/// </summary>
/// <param name="directory">The directory to export the images</param>
/// <param name="images">The images to export</param>
/// <param name="format">The format used to export the images (either pnm or pgm)</param>
public static void SaveFolder(string directory, Image[] images, string format)
{
PgmSerializer pgm = new PgmSerializer();
PnmSerializer pnm = new PnmSerializer();
for (int i = 0; i < images.Length; i++)
{
try
{
using (StreamWriter writer = new StreamWriter(new FileStream(directory + "\\" + i + "." + format, FileMode.Create, FileAccess.Write)))
{
if (format == "pgm")
{
writer.Write(pgm.Serialize(images[i]));
}
else
{
writer.Write(pnm.Serialize(images[i]));
}
}
}
catch (IOException)
{
Console.WriteLine("Error writing to file");
}
}
}
/// <summary>
/// Looks for all the files ending with .pgm or .pnm (Not recursive) inside a directory
/// and creates an Image[] from those files
/// </summary>
/// <param name="directory">The directory path from which to load imagess</param>
/// <returns>The Image[] array that is created from the files in the directory</returns>
public static Image[] LoadFolder(string directory)
{
string[] files = Directory.GetFiles(directory);
List <Image> images = new List <Image>();
PgmSerializer pgm = new PgmSerializer();
PnmSerializer pnm = new PnmSerializer();
foreach (string file in files)
{
if (file.EndsWith(".pnm") || file.EndsWith(".pgm"))
{
try
{
using (StreamReader reader = new StreamReader(file))
{
string fileText = reader.ReadToEnd();
if (file.EndsWith(".pnm"))
{
images.Add(pnm.Parse(fileText));
}
else
{
images.Add(pgm.Parse(fileText));
}
}
}
catch (IOException)
{
Console.WriteLine("Error reading from file");
}
catch (InvalidDataException)
{
Console.WriteLine("Invalid image data");
}
}
}
return(images.ToArray());
}
