public Sample ConvertRawBmpAsSample(Bitmap RawBmp, short VertDpi = 700, short HorDpi = 700)
{
VariantConverter VConverter;
Enroller = new DPFP.Processing.Enrollment();
RawBmp = EncodeBitmap(RawBmp, VertDpi, HorDpi);
try
{
// converts raw image to dpSample using DFC 2.0---------------------------------------
// encode the bmp variable using the bitmap Loader
BitmapLoader BmpLoader = new BitmapLoader(RawBmp, (int)RawBmp.HorizontalResolution, (int)RawBmp.VerticalResolution);
BmpLoader.ProcessBitmap();
// return the required result
inputData = BmpLoader.RawData;
inpRaw = BmpLoader.DPInputParam;
// dispose the object
BmpLoader.Dispose();
// start the conversion process
VConverter = new VariantConverter(VariantConverter.OutputType.dp_sample, DataType.RawSample, inpRaw, inputData, false);
MemoryStream DStream = new MemoryStream(VConverter.Convert());
DPsample = new DPFP.Sample(DStream);
return(DPsample);
}
catch (Exception ex)
{
return(null /* TODO Change to default(_) if this is not a reference type */);
}
}
public VariantConverter(OutputType Output, DigitalPersona.Standards.DataType _dataType, DigitalPersona.Standards.InputParameterForRaw _inpRaw, byte[] _inputData, bool _WriteOutputToFile = false)
{
try
{
cbOutputType = Output;
dataType = _dataType;
inpRaw = _inpRaw;
inputData = _inputData;
WriteOutputToFile = _WriteOutputToFile;
}
catch (Exception ex)
{
throw ex;
}
}
public DPFP.Template ConvertRawBmpAsTemplate(Bitmap RawBmp, DataPurpose ProcessPurpose = DataPurpose.Enrollment, short VertDpi = 700, short HorDpi = 700)
{
VariantConverter VConverter;
Enroller = new DPFP.Processing.Enrollment();
RawBmp = EncodeBitmap(RawBmp, VertDpi, HorDpi);
try
{
// converts raw image to dpSample using DFC 2.0---------------------------------------
// encode the bmp variable using the bitmap Loader
BitmapLoader BmpLoader = new BitmapLoader(RawBmp, (int)RawBmp.HorizontalResolution, (int)RawBmp.VerticalResolution);
BmpLoader.ProcessBitmap();
// return the required result
inputData = BmpLoader.RawData;
inpRaw = BmpLoader.DPInputParam;
// dispose the object
BmpLoader.Dispose();
// start the conversion process
VConverter = new VariantConverter(VariantConverter.OutputType.dp_sample, DataType.RawSample, inpRaw, inputData, false);
MemoryStream DStream = new MemoryStream(VConverter.Convert());
DPsample = new DPFP.Sample(DStream);
// DPsample = DirectCast(VConverter.Convert(), DPFP.Sample)
// converts dpSample to DPFeatures using the OTW'''''''''''''''''''''''''''''''''''''''
DPFeatures = ExtractFeatures(DPsample, ProcessPurpose);
// convert DPfeatures to ISO FMD using the DFC 2.0'''''''''''''''''''''''''''''''''''''''
byte[] SerializedFeatures = null;
DPFeatures.Serialize(ref SerializedFeatures); // serialized features into the array of bytes
ISOFMD = DigitalPersona.Standards.Converter.Convert(SerializedFeatures, DigitalPersona.Standards.DataType.DPFeatureSet, DataType.ISOFeatureSet);
// convert ISO FMD to DPTemplate using DFC 2.0'''''''''''''''''''''''''''''''''''''''
byte[] DPTemplateData = DigitalPersona.Standards.Converter.Convert(ISOFMD, DigitalPersona.Standards.DataType.ISOTemplate, DataType.DPTemplate);
// deserialize data to Template
DPTemplate = new DPFP.Template();
DPTemplate.DeSerialize(DPTemplateData); // required for database purpose
// ============================================================================
DStream.Close();
return(DPTemplate);
}
catch (Exception ex)
{
return(null /* TODO Change to default(_) if this is not a reference type */);
}
}
public void ProcessBitmap()
{
int width = 0;
int height = 0;
int dpiX = 0;
int dpiY = 0;
int bpp = 0;
try
{
dpiX = Convert.ToInt32(tbXdpi);
dpiY = Convert.ToInt32(tbYdpi);
width = bmp.Width;
height = bmp.Height;
System.Drawing.Imaging.BitmapData bmpData;
Rectangle rect = new Rectangle(0, 0, width, height);
switch (bmp.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
{
m_rawData = new byte[width * height - 1 + 1];
// what about padding?
bmpData = bmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
Marshal.Copy(bmpData.Scan0, m_rawData, 0, width * height);
bmp.UnlockBits(bmpData);
inpRaw = new DigitalPersona.Standards.InputParameterForRaw(width, height, dpiX, dpiY, 8);
this.DialogResult = System.Windows.Forms.DialogResult.OK;
break;
}
case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
{
m_rawData = new byte[width * height - 1 + 1];
bmpData = bmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
for (int y = 0; y <= height - 1; y++)
{
for (int x = 0; x <= width - 1; x++)
{
// Calculate greyscale based on average RGB intensity
int i = x * 3 + y * bmpData.Stride;
int Dividend = Marshal.ReadByte(bmpData.Scan0, i);
int Dividend2 = Marshal.ReadByte(bmpData.Scan0, i + 1);
int Dividend3 = Marshal.ReadByte(bmpData.Scan0, i + 2);
int avg_val = (Dividend + Dividend2 + Dividend3) / 3;
// Convert to byte and save gray scale data
m_rawData[x + y * width] = System.Convert.ToByte(avg_val);
}
}
// ----------------------------
bmp.UnlockBits(bmpData);
inpRaw = new DigitalPersona.Standards.InputParameterForRaw(width, height, dpiX, dpiY, 8);
break;
}
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
case System.Drawing.Imaging.PixelFormat.Format32bppRgb:
{
m_rawData = new byte[width * height - 1 + 1];
bmpData = bmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
for (int y = 0; y <= height - 1; y++)
{
for (int x = 0; x <= width - 1; x++)
{
// Calculate greyscale based on average RGB intensity
int i = x * 4 + y * bmpData.Stride;
int Dividend = Marshal.ReadByte(bmpData.Scan0, i);
int Dividend2 = Marshal.ReadByte(bmpData.Scan0, i + 1);
int Dividend3 = Marshal.ReadByte(bmpData.Scan0, i + 2);
int avg_val = (Dividend + Dividend2 + Dividend3) / 3;
m_rawData[x + y * width] = System.Convert.ToByte(avg_val);
}
}
// ----------------------------
bmp.UnlockBits(bmpData);
inpRaw = new DigitalPersona.Standards.InputParameterForRaw(width, height, dpiX, dpiY, 8);
break;
}
default:
{
MessageBox.Show("Bitmap format not supported. Please convert to either 8bpp indexed or 24 bpp non-indexed");
this.DialogResult = System.Windows.Forms.DialogResult.Cancel;
break;
}
}
this.Close();
}
catch (Exception ex)
{
try
{
logger.WriteLog(ex);
}
catch (Exception exx)
{
}
MessageBox.Show(ex.Message);
return;
}
}
