// Constructor
public UnfoldedBindingComparisonPair(int _threshold, ImageSourceBinding _binding0, ImageSourceBinding _binding1,
ImageSource _src0, ImageSource _src1, ComparativeData _radish,
ComparativeData _dct, ComparativeData _wavelet, ComparativeData _bmb)
{
// Copy
m_threshold = _threshold;
m_binding0 = _binding0;
m_binding1 = _binding1;
m_sourceBinding0 = _src0;
m_sourceBinding1 = _src1;
m_compDataRADISH = _radish;
m_compDataDCT = _dct;
m_compDataWavelet = _wavelet;
m_compDataBMB = _bmb;
}
// Override: HashData::compareHashData
public override ComparativeData compareHashData(HashData _data0, HashData _data1)
{
// Local variables
ComparativeData data = null;
// Check parameter
if (_data0 == null || _data1 == null)
{
return(null);
}
if (_data0.getDataType() != getHashDataType() || _data1.getDataType() != getHashDataType())
{
return(null);
}
// Compare hash data
data = m_funcComp(this, (HashData <_HR>)_data0, (HashData <_HR>)_data1);
return(data);
}
// Override: HashData::containsComparativeDataDefaultValue
public override bool containsComparativeDataDefaultValue(ComparativeData _data)
{
// Local variables
ComparativeData <_CR> typedData = null;
// Check parameter
if (_data == null || _data.getDataType() != getComparatorDataType())
{
return(false);
}
typedData = (ComparativeData <_CR>)_data;
// The default value?
if (EqualityComparer <_CR> .Default.Equals(typedData.Data, default(_CR)))
{
return(true);
}
return(false);
}
// Event: Button::Click: Compute
private void onButtonComputeClicked(object _sender, EventArgs _e)
{
// Local variables
Job <ComparativeData> jg = null;
// Validate
if (m_controlImageSourceSelection0.Source == null || m_controlImageSourceSelection1.Source == null)
{
MessageBox.Show(MSG_ERROR_IMAGES_NOT_SET, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// Prepare
m_controlButtonCompute.Enabled = false;
lockTechniqueSelection();
m_controlImageSourceSelection0.lockImageSourceSelection();
m_controlImageSourceSelection1.lockImageSourceSelection();
m_controlProgressBar.Visible = m_controlProgressBar.Enabled = true;
// Set states: computing
m_controlImageSourceSelection0.setInstructionText(STATE_COMPUTING_HASH);
m_controlImageSourceSelection1.setInstructionText(STATE_COMPUTING_HASH);
// Create job
jg = new Job <ComparativeData>((JobParameter <ComparativeData> _params) =>
{
// Local variables
ComparativeData result = null;
Job <HashData> j0 = null, j1 = null;
// Create jobs: computing hashes
j0 = Job <HashData> .createJobComputeHash(m_controlImageSourceSelection0.Source, SingleModeTechnique,
(JobParameter <HashData> _r) =>
{
// Display hash
m_controlImageSourceSelection0.setInstructionText(_r.Result.convertToString());
},
false);
j1 = Job <HashData> .createJobComputeHash(m_controlImageSourceSelection1.Source, SingleModeTechnique,
(JobParameter <HashData> _r) =>
{
// Display hash
m_controlImageSourceSelection1.setInstructionText(_r.Result.convertToString());
},
false);
// Start jobs
Job <HashData> .enqueue(j0);
Job <HashData> .enqueue(j1);
// Wait for jobs
j0.waitForDone();
j1.waitForDone();
// Compare hashes
result = SingleModeTechnique.compareHashData(m_controlImageSourceSelection0.Source, m_controlImageSourceSelection1.Source);
return(result);
},
(JobParameter <ComparativeData> _r) =>
{
// Run in GUI thread
Utility.invokeInGuiThread(m_tabPage, delegate
{
// Set result or error
if (_r.Error != null)
{
m_controlLabelResult.Text = _r.Error.Message;
}
else if (_r == null || _r.Result == null)
{
m_controlLabelResult.Text = MSG_ERROR_COMPUTATION;
}
else
{
m_controlLabelResult.Text = _r.Result.convertToString();
}
// Accepted?
if (_r != null && _r.Result != null)
{
if (_r.Result.isAccepted() == true)
{
m_controlLabelResult.ForeColor = System.Drawing.Color.DarkGreen;
}
else
{
m_controlLabelResult.ForeColor = System.Drawing.Color.DarkRed;
}
}
// Undo the preparations
m_controlButtonCompute.Enabled = true;
unlockTechniqueSelection();
m_controlImageSourceSelection0.unlockImageSourceSelection();
m_controlImageSourceSelection1.unlockImageSourceSelection();
m_controlProgressBar.Visible = m_controlProgressBar.Enabled = false;
});
});
}
// Create the default technique instance for the algorithm: BMB
public static Technique <BMBHash, double> createTechniqueBMB()
{
// Local variables
Technique <BMBHash, double> t = null;
// Create technique
t = new Technique <BMBHash, double>(TechniqueID.BMB,
(Technique _t, ImageSource _image, string[] _dumpToDiskPathes) =>
{
// Local variables
BMBHash hash = new BMBHash();
IntPtr hashUnmanaged = IntPtr.Zero;
HashComputationTimings timings = new HashComputationTimings();
HashData <BMBHash> result = null;
int attMethod = 1;
// Extract attributes
if (_t.isAttributeAvailable(Technique.ATT_BMB_METHOD) == true)
{
_t.getAttribute <int>(Technique.ATT_BMB_METHOD, out attMethod);
}
// Dump to disk?
if (_dumpToDiskPathes != null && _dumpToDiskPathes.Length == DumpTechniqueStepsToDisk.BMB_PATH_COUNT)
{
if (PHash.dumpBMBHashToDisk(_image.FilePath, attMethod, _dumpToDiskPathes[0], _dumpToDiskPathes[1], _dumpToDiskPathes[2]) != 0)
{
return(null);
}
return(new HashData <BMBHash>(null));
}
else
{
// Comnpute hash
if (PHash.computeBMBHash(_image.FilePath, attMethod, out hashUnmanaged, timings) == -1)
{
return(null);
}
// Convert unmanaged to managed
Utility.convertUnmanagedPtrToSimpleStructure <BMBHash>(hashUnmanaged, ref hash, false);
// Store result
result = new HashData <BMBHash>(hash, (BMBHash _data) =>
{
return(Utility.toHexString(_data.m_data, _data.m_dataLength));
},
new HashDataTimings(timings.m_imageLoadingTimeMS, timings.m_hashComputationTimeMS));
return(result);
}
},
(Technique _t, HashData <BMBHash> _h0, HashData <BMBHash> _h1) =>
{
// Local variables
double dis = 0;
decimal threshold = 90m;
bool isSame = false;
ComparativeData <double> result = null;
// Extract attributes
if (_t.isAttributeAvailable(Technique.ATT_GENERAL_THRESHOLD) == true)
{
_t.getAttribute <decimal>(Technique.ATT_GENERAL_THRESHOLD, out threshold);
}
// Compute distance
dis = PHash.computeHammingDistance(_h0.Data.m_data, _h0.Data.m_dataLength, _h1.Data.m_data, _h1.Data.m_dataLength);
// Is accepted?
isSame = (1.0 - dis) >= Convert.ToSingle(threshold) / 100.0;
// Store result
result = new ComparativeData <double>(dis, isSame, (double _d) =>
{
return("Match rate: " + (1.0 - _d).ToString("#0.0000"));
},
(double _d) =>
{
return(1.0 - _d);
});
return(result);
}
);
return(t);
}
// Create the default technique instance for the algorithm: wavelet
public static Technique <WaveletHash, double> createTechniqueWavelet()
{
// Local variables
Technique <WaveletHash, double> t = null;
// Create technique
t = new Technique <WaveletHash, double>(TechniqueID.WAVELET,
(Technique _t, ImageSource _image, string[] _dumpToDiskPathes) =>
{
// Local variables
int len = 0;
IntPtr hash;
WaveletHash data = new WaveletHash();
HashData <WaveletHash> result = null;
HashComputationTimings timings = new HashComputationTimings();
decimal attAlpha = 2m;
decimal attLevel = 1m;
// Extract attributes
if (_t.isAttributeAvailable(Technique.ATT_WAVELET_ALPHA) == true)
{
_t.getAttribute <decimal>(Technique.ATT_WAVELET_ALPHA, out attAlpha);
}
if (_t.isAttributeAvailable(Technique.ATT_WAVELET_LEVEL) == true)
{
_t.getAttribute <decimal>(Technique.ATT_WAVELET_LEVEL, out attLevel);
}
// Dump to disk?
if (_dumpToDiskPathes != null && _dumpToDiskPathes.Length == DumpTechniqueStepsToDisk.WAVELET_PATH_COUNT)
{
if (PHash.dumpWaveletHashToDisk(_image.FilePath, Convert.ToSingle(attAlpha), Convert.ToSingle(attLevel),
_dumpToDiskPathes[0], _dumpToDiskPathes[1], _dumpToDiskPathes[2],
_dumpToDiskPathes[3]) != 0)
{
return(null);
}
return(new HashData <WaveletHash>(null));
}
else
{
// Compute hast
hash = PHash.computeWaveletHash(_image.FilePath, ref len, timings, Convert.ToSingle(attAlpha), Convert.ToSingle(attLevel));
// Store result
data.m_data = hash;
data.m_dataLength = len;
result = new HashData <WaveletHash>(data, (WaveletHash _data) =>
{
return(Utility.toHexString(_data.m_data, _data.m_dataLength));
},
new HashDataTimings(timings.m_imageLoadingTimeMS, timings.m_hashComputationTimeMS));
return(result);
}
},
(Technique _t, HashData <WaveletHash> _h0, HashData <WaveletHash> _h1) =>
{
// Local variables
double dis = 0;
decimal threshold = 90m;
bool isSame = false;
ComparativeData <double> result = null;
// Extract attributes
if (_t.isAttributeAvailable(Technique.ATT_GENERAL_THRESHOLD) == true)
{
_t.getAttribute <decimal>(Technique.ATT_GENERAL_THRESHOLD, out threshold);
}
// Compute distance
dis = PHash.computeHammingDistance(_h0.Data.m_data, _h0.Data.m_dataLength, _h1.Data.m_data, _h1.Data.m_dataLength);
// Is accepted?
isSame = (1.0 - dis) >= Convert.ToSingle(threshold) / 100.0;
// Store result
result = new ComparativeData <double>(dis, isSame, (double _d) =>
{
return("Match rate: " + (1.0 - _d).ToString("#0.0000"));
},
(double _d) =>
{
return(1.0 - _d);
});
return(result);
}
);
return(t);
}
// Create the default technique instance for the algorithm: DCT
public static Technique <UInt64, double> createTechniqueDCT()
{
// Local variables
Technique <UInt64, double> t = null;
// Create technique
t = new Technique <UInt64, double>(TechniqueID.DCT,
(Technique _t, ImageSource _image, string[] _dumpToDiskPathes) =>
{
// Local variables
UInt64 hash = 0;
HashData <UInt64> result = null;
HashComputationTimings timings = new HashComputationTimings();
// Dump to disk?
if (_dumpToDiskPathes != null && _dumpToDiskPathes.Length == DumpTechniqueStepsToDisk.DCT_PATH_COUNT)
{
if (PHash.dumpDCTHashToDisk(_image.FilePath, _dumpToDiskPathes[0], _dumpToDiskPathes[1], _dumpToDiskPathes[2],
_dumpToDiskPathes[3], _dumpToDiskPathes[4], _dumpToDiskPathes[5]) != 0)
{
return(null);
}
return(new HashData <ulong>(0));
}
else
{
// Compute hast
PHash.computeDCTHash(_image.FilePath, ref hash, timings);
// Store result
result = new HashData <UInt64>(hash, null, new HashDataTimings(timings.m_imageLoadingTimeMS, timings.m_hashComputationTimeMS));
return(result);
}
},
(Technique _t, HashData <UInt64> _h0, HashData <UInt64> _h1) =>
{
// Local variables
double dis = 0;
bool isSame = false;
decimal threshold = 90m;
ComparativeData <double> result = null;
// Extract attributes
if (_t.isAttributeAvailable(Technique.ATT_GENERAL_THRESHOLD) == true)
{
_t.getAttribute <decimal>(Technique.ATT_GENERAL_THRESHOLD, out threshold);
}
// Compute distance and normalize it
dis = PHash.computeHammingDistance(_h0.Data, _h1.Data);
dis /= 64;
// Is accepted?
isSame = (1.0 - dis) >= Convert.ToSingle(threshold) / 100.0;
// Store result
result = new ComparativeData <double>(dis, isSame, (double _d) =>
{
return("Match rate: " + (1.0 - _d).ToString("#0.0000"));
},
(double _d) =>
{
return(1.0f - _d);
});
return(result);
}
);
return(t);
}
// Checks whether the comparative data contains the default value for its internal type public abstract bool containsComparativeDataDefaultValue(ComparativeData _data);
// Adds the comparison data for a certain technique
public void setComparisonDataFor(TechniqueID _id, ComparativeData _data)
{
m_comparisonData.Add(_id, _data);
}
