neclatent1.cpp
2.03 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
#include <openbr_plugin.h>
#include <LatentEFS.h>
// necessary to allocate a large memory though the actual template size
// may be much smaller
#define MAX_TEMPLATE_SIZE 400000
namespace br
{
/*!
* \ingroup initializers
* \brief Initialize the NEC Latent SDK wrapper.
* \author Josh Klontz \cite jklontz
*/
class NECLatent1Initialier : public Initializer
{
Q_OBJECT
void initialize() const
{
Globals->abbreviations.insert("NECLatent1", "Open+Cvt(Gray)+NECLatent1Enroll:NECLatent1Compare");
}
};
BR_REGISTER(Initializer, NECLatent1Initialier)
/*!
* \ingroup transforms
* \brief Enroll an NEC latent fingerprint.
* \author Josh Klontz \cite jklontz
*/
class NECLatent1EnrollTransform : public UntrainableTransform
{
Q_OBJECT
void project(const Template &src, Template &dst) const
{
if (src.m().type() != CV_8UC1) qFatal("Requires 8UC1 data!");
unsigned char *data = new unsigned char[MAX_TEMPLATE_SIZE];
int size = 0;
int error = NEC_LFML_ExtractLatent(src.m().data, src.m().rows, src.m().cols, 500, data, &size);
if (!error) {
cv::Mat n(1, size, CV_8UC1);
memcpy(n.data, data, size);
dst.m() = n;
} else {
qWarning("NECLatent1EnrollTransform error %d for file %s.", error, qPrintable(src.file.flat()));
dst.m() = cv::Mat();
dst.file.set("FTE", true);
}
delete[] data;
}
};
BR_REGISTER(Transform, NECLatent1EnrollTransform)
/*!
* \ingroup distances
* \brief Compare two NEC latent fingerprints
* \author Josh Klontz \cite jklontz
*/
class NECLatent1CompareDistance : public Distance
{
Q_OBJECT
float compare(const Template &a, const Template &b) const
{
if (!a.m().data || !b.m().data) return -std::numeric_limits<float>::max();
int score;
NEC_LFML_Verify(b.m().data, b.m().total(), a.m().data, a.m().total(), &score);
return score;
}
};
BR_REGISTER(Distance, NECLatent1CompareDistance)
} // namespace br
#include "neclatent1.moc"