public override Bitmap RecoverWatermark(Bitmap watermarkedImage)
{
var coverData = ImageUtility.ConvertToMatrix(_coverImage);
var watermarkData = ImageUtility.ConvertToMatrix(_watermark);
var watermarkedData = ImageUtility.ConvertToMatrix(watermarkedImage);
Action red = () => RecoverChannel(coverData.R, watermarkedData.R, watermarkData.R);
Action green = () => RecoverChannel(coverData.G, watermarkedData.G, watermarkData.G);
Action blue = () => RecoverChannel(coverData.B, watermarkedData.B, watermarkData.B);
Parallel.Invoke(red, green, blue);
var avgGray = new double[watermarkData.Width, watermarkData.Height];
for (int i = 0; i < watermarkData.Width; i++)
{
for (int j = 0; j < watermarkData.Height; j++)
{
avgGray[i, j] = (1 * watermarkData.R[i, j] + 1 * watermarkData.G[i, j] + 1 * watermarkData.B[i, j]) / 3;
}
}
watermarkData = new RgbData(avgGray);
var recoveredWatermark = ImageUtility.ConvertToBitmap(watermarkData);
return(recoveredWatermark);
}
public override Bitmap EmbedWatermark(Bitmap coverImage, Bitmap watermarkImage)
{
var coverData = ImageUtility.ConvertToMatrix(coverImage);
var watermarkData = ImageUtility.ConvertToMatrix(watermarkImage);
Action red = () => EmbedChannel(coverData.R, watermarkData.R);
Action green = () => EmbedChannel(coverData.G, watermarkData.G);
Action blue = () => EmbedChannel(coverData.B, watermarkData.B);
Parallel.Invoke(red, green, blue);
var watermarkedImage = ImageUtility.ConvertToBitmap(coverData);
SetInformData(coverImage, watermarkImage);
return(watermarkedImage);
}
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);
}
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);
}
