private void AdatRejtes(string fileNev, string szoveg)
{
BitmapImage bmp = new BitmapImage();
bmp.BeginInit();
bmp.CacheOption = BitmapCacheOption.OnLoad;
bmp.CreateOptions = BitmapCreateOptions.IgnoreImageCache;
bmp.UriSource = new Uri(fileNev);
bmp.EndInit();
WriteableBitmap wbmp = new WriteableBitmap(bmp);
int arraySize = wbmp.BackBufferStride * wbmp.PixelHeight;
byte[] originalPixels = new byte[arraySize];
wbmp.CopyPixels(originalPixels, wbmp.BackBufferStride, 0);
SztegoLSB lsb = new SztegoLSB((TitkositoAlgoritmus)ComboBoxTitkositoTipus.SelectedIndex);
lsb.Elrejtes(szoveg, originalPixels);
wbmp.WritePixels(new Int32Rect(0, 0, wbmp.PixelWidth, wbmp.PixelHeight), originalPixels, wbmp.BackBufferStride, 0);
ImageStego.Source = wbmp;
string stegoFileNev = Konyvtarak.AdatKonyvtar + "\\stego.bmp";
BitmapMentese(wbmp, stegoFileNev);
KepBetoltese(stegoFileNev);
TextBlockFilenev.Text = stegoFileNev;
}
private void Visszafejtes(string fileNev)
{
BitmapImage bmp = new BitmapImage();
bmp.BeginInit();
bmp.CacheOption = BitmapCacheOption.OnLoad;
bmp.CreateOptions = BitmapCreateOptions.IgnoreImageCache;
bmp.UriSource = new Uri(fileNev);
bmp.EndInit();
WriteableBitmap wbmp = new WriteableBitmap(bmp);
int arraySize = wbmp.BackBufferStride * bmp.PixelHeight;
byte[] originalPixels = new byte[arraySize];
bmp.CopyPixels(originalPixels, wbmp.BackBufferStride, 0);
SztegoLSB lsb = new SztegoLSB();
TextBoxVisszafejtett.Text = lsb.Visszafejtes(originalPixels);
}
