private void button2_Click(object sender, EventArgs e)
{
preferences.SelectedAlgorithm = EAlgoSelect.E_STEGA_ALGO;
worker = MessageDecoder.Instance.SetPreferences(preferences);
worker.WorkDone += OnDecodeDone;
format = worker.AlgoFormatImpl;
format.ProgressUpdateDecode += OnDecodeProgressUpdate;
Thread decodingThread = new Thread(worker.Work);
decodingThread.Start();
}
public void TestDecodeText()
{
algo = stegaFactory.GetImplementationByFormat(ESupportedAlgorithms.ClasicAlgo);
string expectedText = "ali";
Image image = Image.FromFile(@"c:\Users\Alina\Desktop\Temp\encoded.png");
byte[] byteArrayText = null;
algo.Decode(image, ref byteArrayText);
string actualText = Encoding.Default.GetString(byteArrayText);
Assert.AreEqual(expectedText, actualText);
}
public void TestEncodeImage()
{
algo = stegaFactory.GetImplementationByFormat(ESupportedAlgorithms.ClasicAlgo);
Image hidden = Image.FromFile(@"c:\Users\Alina\Desktop\Temp\hidden.png");
Image image = Image.FromFile(@"c:\Users\Alina\Desktop\Temp\innocuous.png");
Image imageNotModified = Image.FromFile(@"c:\Users\Alina\Desktop\Temp\innocuous.png");
byte[] hiddenArrayBytes = Utils.BitmapToByteArray(hidden);
algo.Encode(ref image, hiddenArrayBytes);
Assert.AreNotEqual(imageNotModified, image);
image.Save(@"c:\Users\Alina\Desktop\Temp\encoded.png", ImageFormat.Png);
}
public void TestDecodeImage()
{
algo = stegaFactory.GetImplementationByFormat(ESupportedAlgorithms.ClasicAlgo);
Image image = Image.FromFile(@"c:\Users\Alina\Desktop\Temp\encoded.png");
Image hidden = Image.FromFile(@"c:\Users\Alina\Desktop\Temp\hidded.png");
byte[] expected = Utils.BitmapToByteArray(hidden);
byte[] byteArrayText = null;
algo.Decode(image, ref byteArrayText);
Image img = Utils.ByteArrayToBitmap(byteArrayText);
img.Save(@"c:\Users\Alina\Desktop\Temp\decoded.png", ImageFormat.Png);
}
public void TestEncodeText()
{
string hiddenText = "ali";
algo = stegaFactory.GetImplementationByFormat(ESupportedAlgorithms.ClasicAlgo);
byte[] hiddenArrayBytes = Encoding.ASCII.GetBytes(hiddenText);
Image image = Image.FromFile(@"c:\Users\Alina\Desktop\Temp\innocuous.png");
Image imageNotModified = Image.FromFile(@"c:\Users\Alina\Desktop\Temp\innocuous.png");
algo.Encode(ref image, hiddenArrayBytes);
Assert.AreNotEqual(imageNotModified, image);
image.Save(@"c:\Users\Alina\Desktop\Temp\encoded.png", ImageFormat.Png);
}
