public override Bitmap RecoverWatermark(Bitmap watermarkedImage)
{
var watermarkedData = ImageUtility.ConvertToMatrix(watermarkedImage);
var watermarkData = new int[_watermark.Width, _watermark.Height];
var watermarkChannel = new int[_watermark.Width * _watermark.Height];
RecoverChannel(watermarkedData.G, watermarkChannel);
int k = 0;
for (int i = 0; i < watermarkData.GetUpperBound(0) + 1; i++)
{
for (int j = 0; j < watermarkData.GetUpperBound(1) + 1; j++)
{
watermarkData[i, j] = watermarkChannel[k++];
}
}
var recoveredWatermark = ImageUtility.ConverBinaryArrayToWatermark2(watermarkData);
return(recoveredWatermark);
}
private void BtnRecoveredWatermarkSave_Click(object sender, EventArgs e)
{
//if (_recoveredWatermark == null)
// return;
SaveFileDialog dialog = new SaveFileDialog();
dialog.Filter = "JPEG|*.jpg|PNG|*.png;|BMP|*.bmp;|GIF|*.gif;|TIFF|*.tiff";
dialog.AddExtension = true;
String destinationPath = null;
if (dialog.ShowDialog() == DialogResult.OK)
{
destinationPath = dialog.FileName;
try
{
_recoveredWatermark.Save(destinationPath, ImageUtility.GetImageFormat(destinationPath));
}
catch (Exception exc)
{
MessageBox.Show(exc.Message);
}
}
}
public override Bitmap EmbedWatermark(Bitmap coverImage, Bitmap watermark)
{
var coverData = ImageUtility.ConvertToMatrix(coverImage);
var watermarkData = ImageUtility.ConvertWatermarkToBinaryArray2(watermark);
var watermarkChannel = new int[watermarkData.Length];
int k = 0;
for (int i = 0; i < watermarkData.GetUpperBound(0) + 1; i++)
{
for (int j = 0; j < watermarkData.GetUpperBound(1) + 1; j++)
{
watermarkChannel[k++] = watermarkData[i, j];
}
}
EmbedChannel(coverData.G, watermarkChannel);
SetInformData(watermark);
var watermarkedImage = ImageUtility.ConvertToBitmap(coverData);
return(watermarkedImage);
}
