Peter M. Groen / openbr

Commit 3080864adf84b77df8bd33852fb216ab3bc49926

Authored by Josh Klontz
1 parent 044fc4e6

remote ltp

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openbr/plugins/imgproc/ltp.cpp deleted
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1 -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *  
2 - * Copyright 2012 The MITRE Corporation *  
3 - * *  
4 - * Licensed under the Apache License, Version 2.0 (the "License"); *  
5 - * you may not use this file except in compliance with the License. *  
6 - * You may obtain a copy of the License at *  
7 - * *  
8 - * http://www.apache.org/licenses/LICENSE-2.0 *  
9 - * *  
10 - * Unless required by applicable law or agreed to in writing, software *  
11 - * distributed under the License is distributed on an "AS IS" BASIS, *  
12 - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *  
13 - * See the License for the specific language governing permissions and *  
14 - * limitations under the License. *  
15 - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */  
16 -  
17 -#include <opencv2/imgproc/imgproc.hpp>  
18 -#include <opencv2/imgproc/imgproc_c.h>  
19 -#include <limits>  
20 -  
21 -#include <openbr/plugins/openbr_internal.h>  
22 -  
23 -using namespace cv;  
24 -  
25 -namespace br  
26 -{  
27 -  
28 -/*!  
29 - * \ingroup transforms  
30 - * \brief DOCUMENT ME  
31 - * \br_paper Tan, Xiaoyang, and Bill Triggs.  
32 - * "Enhanced local texture feature sets for face recognition under difficult lighting conditions."  
33 - * Analysis and Modeling of Faces and Gestures. Springer Berlin Heidelberg, 2007. 168-182.  
34 - * \author Brendan Klare \cite bklare  
35 - * \author Josh Klontz \cite jklontz  
36 - */  
37 -class LTPTransform : public UntrainableTransform  
38 -{  
39 - Q_OBJECT  
40 - Q_PROPERTY(int radius READ get_radius WRITE set_radius RESET reset_radius STORED false)  
41 - Q_PROPERTY(float threshold READ get_threshold WRITE set_threshold RESET reset_threshold STORED false)  
42 - BR_PROPERTY(int, radius, 1)  
43 - BR_PROPERTY(float, threshold, 0.1F)  
44 -  
45 - unsigned short lut[8][3];  
46 - uchar null;  
47 -  
48 - void init()  
49 - {  
50 - unsigned short cnt = 0;  
51 - for (int i = 0; i < 8; i++) {  
52 - for (int j = 0; j < 3; j++)  
53 - lut[i][j] = cnt++;  
54 - cnt++; //we skip the 4th number (only three patterns)  
55 - }  
56 - }  
57 -  
58 - void project(const Template &src, Template &dst) const  
59 - {  
60 - Mat m; src.m().convertTo(m, CV_32F); assert(m.isContinuous() && (m.channels() == 1));  
61 -  
62 - Mat n(m.rows, m.cols, CV_16U);  
63 - n = null;  
64 - float thresholdNeg = -1.0 * threshold; //compute once (can move to init)  
65 -  
66 - const float *p = (const float*)m.ptr();  
67 - float diff;  
68 - for (int r=radius; r<m.rows-radius; r++) {  
69 - for (int c=radius; c<m.cols-radius; c++) {  
70 - const float cval = (p[(r+0*radius)*m.cols+c+0*radius]);  
71 -  
72 - diff = p[(r-1*radius)*m.cols+c-1*radius] - cval;  
73 - if (diff > threshold) n.at<unsigned short>(r,c) = lut[0][0];  
74 - else if (diff < thresholdNeg) n.at<unsigned short>(r,c) = lut[0][1];  
75 - else n.at<unsigned short>(r,c) = lut[0][2];  
76 -  
77 - diff = p[(r-1*radius)*m.cols+c+0*radius] - cval;  
78 - if (diff > threshold) n.at<unsigned short>(r,c) += lut[1][0];  
79 - else if (diff < thresholdNeg) n.at<unsigned short>(r,c) += lut[1][1];  
80 - else n.at<unsigned short>(r,c) += lut[1][2];  
81 -  
82 - diff = p[(r-1*radius)*m.cols+c+1*radius] - cval;  
83 - if (diff > threshold) n.at<unsigned short>(r,c) += lut[2][0];  
84 - else if (diff < thresholdNeg) n.at<unsigned short>(r,c) += lut[2][1];  
85 - else n.at<unsigned short>(r,c) += lut[2][2];  
86 -  
87 - diff = p[(r+0*radius)*m.cols+c+1*radius] - cval;  
88 - if (diff > threshold) n.at<unsigned short>(r,c) += lut[3][0];  
89 - else if (diff < thresholdNeg) n.at<unsigned short>(r,c) += lut[3][1];  
90 - else n.at<unsigned short>(r,c) += lut[3][2];  
91 -  
92 - diff = p[(r+1*radius)*m.cols+c+1*radius] - cval;  
93 - if (diff > threshold) n.at<unsigned short>(r,c) += lut[4][0];  
94 - else if (diff < thresholdNeg) n.at<unsigned short>(r,c) += lut[4][1];  
95 - else n.at<unsigned short>(r,c) += lut[4][2];  
96 -  
97 - diff = p[(r+1*radius)*m.cols+c+0*radius] - cval;  
98 - if (diff > threshold) n.at<unsigned short>(r,c) += lut[5][0];  
99 - else if (diff < thresholdNeg) n.at<unsigned short>(r,c) += lut[5][1];  
100 - else n.at<unsigned short>(r,c) += lut[5][2];  
101 -  
102 - diff = p[(r+1*radius)*m.cols+c-1*radius] - cval;  
103 - if (diff > threshold) n.at<unsigned short>(r,c) += lut[6][0];  
104 - else if (diff < thresholdNeg) n.at<unsigned short>(r,c) += lut[6][1];  
105 - else n.at<unsigned short>(r,c) += lut[6][2];  
106 -  
107 - diff = p[(r+0*radius)*m.cols+c-1*radius] - cval;  
108 - if (diff > threshold) n.at<unsigned short>(r,c) += lut[7][0];  
109 - else if (diff < thresholdNeg) n.at<unsigned short>(r,c) += lut[7][1];  
110 - else n.at<unsigned short>(r,c) += lut[7][2];  
111 - }  
112 - }  
113 -  
114 - dst += n;  
115 - }  
116 -};  
117 -  
118 -BR_REGISTER(Transform, LTPTransform)  
119 -  
120 -} // namespace br  
121 -  
122 -#include "imgproc/ltp.moc"