private void EncodeButton_Click(object sender, RoutedEventArgs e)
{
if (data == null)
{
MessageBox.Show("Загрузите изображение");
return;
}
Int32.TryParse(SizeTextBox.Text, out var size);
size = size > 0 ? size : 500;
var message = data.Split(size).ToArray();
var result = new EncryptedBlock <byte> [message.Count()];
Parallel.For(0, message.Count(), (i) =>
{
var encoded = ArithmeticCoder.Encode(message[i].ToArray());
result[i] = new EncryptedBlock <byte>(encoded.Message, encoded.Ranges, encoded.Length);
});
MessageBox.Show("Изображение закодировано");
encryptedBlocks = result;
}
private void OpenEncodeButton_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.Filter = "Encoded files(*.dat)|*.dat";
if (openFileDialog1.ShowDialog() != true)
{
return;
}
BinaryFormatter formatter = new BinaryFormatter();
//read file
//using FileStream fs = new FileStream(openFileDialog1.FileName, FileMode.OpenOrCreate);
EncryptedBlock <byte>[] encrypteds = Parser.Decode(File.ReadAllBytes(openFileDialog1.FileName));//(EncryptedBlock<byte>[])formatter.Deserialize(fs);
//decode
IEnumerable <byte>[] result = new IEnumerable <byte> [encrypteds.Length];
Parallel.For(0, encrypteds.Count(), (i) =>
{
var temp = encrypteds[i];
var encoded = ArithmeticCoder.Decode(temp.Message, temp.Ranges, temp.Length);
result[i] = encoded;
});
//merge
using MemoryStream image = new MemoryStream();
foreach (var i in result)
{
image.Write(i.ToArray(), 0, i.Count());
}
var img = ConvertByteArrayToBitmapImage(image.ToArray());
EncodedPicture.Source = img;
}
