Commit 51bb9ca52775a3403399b2322d2200abd9fec1d9
Merge pull request #321 from biometrics/eigenutil_cleanup
Eigenutil cleanup
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4 changed files
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70 additions
and
154 deletions
openbr/core/eigenutils.cpp
| @@ -4,80 +4,15 @@ | @@ -4,80 +4,15 @@ | ||
| 4 | using namespace Eigen; | 4 | using namespace Eigen; |
| 5 | using namespace cv; | 5 | using namespace cv; |
| 6 | 6 | ||
| 7 | -//Helper function to quickly write eigen matrix to disk. Not efficient. | ||
| 8 | -void writeEigen(MatrixXf X, QString filename) { | ||
| 9 | - Mat m(X.rows(),X.cols(),CV_32FC1); | ||
| 10 | - for (int i = 0; i < X.rows(); i++) { | ||
| 11 | - for (int j = 0; j < X.cols(); j++) { | ||
| 12 | - m.at<float>(i,j) = X(i,j); | ||
| 13 | - } | ||
| 14 | - } | ||
| 15 | - QScopedPointer<br::Format> format(br::Factory<br::Format>::make(filename)); | ||
| 16 | - format->write(br::Template(m)); | ||
| 17 | -} | ||
| 18 | - | ||
| 19 | -void writeEigen(MatrixXd X, QString filename) { | ||
| 20 | - Mat m(X.rows(),X.cols(),CV_32FC1); | ||
| 21 | - for (int i = 0; i < X.rows(); i++) { | ||
| 22 | - for (int j = 0; j < X.cols(); j++) { | ||
| 23 | - m.at<float>(i,j) = (float)X(i,j); | ||
| 24 | - } | ||
| 25 | - } | ||
| 26 | - QScopedPointer<br::Format> format(br::Factory<br::Format>::make(filename)); | ||
| 27 | - format->write(br::Template(m)); | ||
| 28 | -} | ||
| 29 | - | ||
| 30 | -void writeEigen(VectorXd X, QString filename) { | ||
| 31 | - Mat m(X.size(),1,CV_32FC1); | ||
| 32 | - for (int i = 0; i < X.rows(); i++) { | ||
| 33 | - m.at<float>(i,0) = (float)X(i); | ||
| 34 | - } | ||
| 35 | - QScopedPointer<br::Format> format(br::Factory<br::Format>::make(filename)); | ||
| 36 | - format->write(br::Template(m)); | ||
| 37 | -} | ||
| 38 | - | ||
| 39 | -void writeEigen(VectorXf X, QString filename) { | ||
| 40 | - Mat m(X.size(),1,CV_32FC1); | ||
| 41 | - for (int i = 0; i < X.rows(); i++) { | ||
| 42 | - m.at<float>(i,0) = X(i); | ||
| 43 | - } | ||
| 44 | - QScopedPointer<br::Format> format(br::Factory<br::Format>::make(filename)); | ||
| 45 | - format->write(br::Template(m)); | ||
| 46 | -} | ||
| 47 | - | ||
| 48 | -void printEigen(Eigen::MatrixXd X) { | ||
| 49 | - for (int i = 0; i < X.rows(); i++) { | ||
| 50 | - QString str; | ||
| 51 | - for (int j = 0; j < X.cols(); j++) { | ||
| 52 | - str.append(QString::number(X(i,j)) + " "); | ||
| 53 | - } | ||
| 54 | - qDebug() << str; | ||
| 55 | - } | ||
| 56 | -} | ||
| 57 | -void printEigen(Eigen::MatrixXf X) { | ||
| 58 | - for (int i = 0; i < X.rows(); i++) { | ||
| 59 | - QString str; | ||
| 60 | - for (int j = 0; j < X.cols(); j++) { | ||
| 61 | - str.append(QString::number(X(i,j)) + " "); | ||
| 62 | - } | ||
| 63 | - qDebug() << str; | ||
| 64 | - } | ||
| 65 | -} | ||
| 66 | - | ||
| 67 | -void printSize(Eigen::MatrixXf X) { | 7 | +void EigenUtils::printSize(Eigen::MatrixXf X) { |
| 68 | qDebug() << "Rows=" << X.rows() << "\tCols=" << X.cols(); | 8 | qDebug() << "Rows=" << X.rows() << "\tCols=" << X.cols(); |
| 69 | } | 9 | } |
| 70 | 10 | ||
| 71 | -float eigMean(const Eigen::MatrixXf& x) { | ||
| 72 | - return x.array().sum() / (x.rows() * x.cols()); | 11 | +float EigenUtils::stddev(const Eigen::MatrixXf& x) { |
| 12 | + return sqrt((x.array() - x.mean()).pow(2).sum() / (x.cols() * x.rows())); | ||
| 73 | } | 13 | } |
| 74 | 14 | ||
| 75 | -float eigStd(const Eigen::MatrixXf& x) { | ||
| 76 | - float mean = eigMean(x); | ||
| 77 | - return sqrt((x.array() - mean).pow(2).sum() / (x.cols() * x.rows())); | ||
| 78 | -} | ||
| 79 | - | ||
| 80 | -MatrixXf removeRowCol(const MatrixXf X, int row, int col) { | 15 | +MatrixXf EigenUtils::removeRowCol(const MatrixXf X, int row, int col) { |
| 81 | MatrixXf Y(X.rows() - 1,X.cols() - 1); | 16 | MatrixXf Y(X.rows() - 1,X.cols() - 1); |
| 82 | 17 | ||
| 83 | for (int i1 = 0, i2 = 0; i1 < X.rows(); i1++) { | 18 | for (int i1 = 0, i2 = 0; i1 < X.rows(); i1++) { |
| @@ -96,7 +31,7 @@ MatrixXf removeRowCol(const MatrixXf X, int row, int col) { | @@ -96,7 +31,7 @@ MatrixXf removeRowCol(const MatrixXf X, int row, int col) { | ||
| 96 | return Y; | 31 | return Y; |
| 97 | } | 32 | } |
| 98 | 33 | ||
| 99 | -MatrixXf pointsToMatrix(const QList<QPointF> points, bool isAffine) { | 34 | +MatrixXf EigenUtils::pointsToMatrix(const QList<QPointF> points, bool isAffine) { |
| 100 | MatrixXf P(points.size(), isAffine ? 3 : 2); | 35 | MatrixXf P(points.size(), isAffine ? 3 : 2); |
| 101 | for (int i = 0; i < points.size(); i++) { | 36 | for (int i = 0; i < points.size(); i++) { |
| 102 | P(i, 0) = points[i].x(); | 37 | P(i, 0) = points[i].x(); |
| @@ -107,7 +42,7 @@ MatrixXf pointsToMatrix(const QList<QPointF> points, bool isAffine) { | @@ -107,7 +42,7 @@ MatrixXf pointsToMatrix(const QList<QPointF> points, bool isAffine) { | ||
| 107 | return P; | 42 | return P; |
| 108 | } | 43 | } |
| 109 | 44 | ||
| 110 | -QList<QPointF> matrixToPoints(const Eigen::MatrixXf P) { | 45 | +QList<QPointF> EigenUtils::matrixToPoints(const Eigen::MatrixXf P) { |
| 111 | QList<QPointF> points; | 46 | QList<QPointF> points; |
| 112 | for (int i = 0; i < P.rows(); i++) | 47 | for (int i = 0; i < P.rows(); i++) |
| 113 | points.append(QPointF(P(i, 0), P(i, 1))); | 48 | points.append(QPointF(P(i, 0), P(i, 1))); |
| @@ -115,7 +50,7 @@ QList<QPointF> matrixToPoints(const Eigen::MatrixXf P) { | @@ -115,7 +50,7 @@ QList<QPointF> matrixToPoints(const Eigen::MatrixXf P) { | ||
| 115 | } | 50 | } |
| 116 | 51 | ||
| 117 | //Converts x y points in a single vector to two column matrix | 52 | //Converts x y points in a single vector to two column matrix |
| 118 | -Eigen::MatrixXf vectorToMatrix(const Eigen::MatrixXf vector) { | 53 | +Eigen::MatrixXf EigenUtils::vectorToMatrix(const Eigen::MatrixXf vector) { |
| 119 | int n = vector.rows(); | 54 | int n = vector.rows(); |
| 120 | Eigen::MatrixXf matrix(n / 2, 2); | 55 | Eigen::MatrixXf matrix(n / 2, 2); |
| 121 | for (int i = 0; i < n / 2; i++) { | 56 | for (int i = 0; i < n / 2; i++) { |
| @@ -126,7 +61,7 @@ Eigen::MatrixXf vectorToMatrix(const Eigen::MatrixXf vector) { | @@ -126,7 +61,7 @@ Eigen::MatrixXf vectorToMatrix(const Eigen::MatrixXf vector) { | ||
| 126 | return matrix; | 61 | return matrix; |
| 127 | } | 62 | } |
| 128 | 63 | ||
| 129 | -Eigen::MatrixXf matrixToVector(const Eigen::MatrixXf matrix) { | 64 | +Eigen::MatrixXf EigenUtils::matrixToVector(const Eigen::MatrixXf matrix) { |
| 130 | int n2 = matrix.rows(); | 65 | int n2 = matrix.rows(); |
| 131 | Eigen::MatrixXf vector(n2 * 2, 1); | 66 | Eigen::MatrixXf vector(n2 * 2, 1); |
| 132 | for (int i = 0; i < n2; i++) { | 67 | for (int i = 0; i < n2; i++) { |
| @@ -136,12 +71,3 @@ Eigen::MatrixXf matrixToVector(const Eigen::MatrixXf matrix) { | @@ -136,12 +71,3 @@ Eigen::MatrixXf matrixToVector(const Eigen::MatrixXf matrix) { | ||
| 136 | } | 71 | } |
| 137 | return vector; | 72 | return vector; |
| 138 | } | 73 | } |
| 139 | - | ||
| 140 | -Eigen::MatrixXf toEigen(const Mat m) { | ||
| 141 | - if (m.type() != CV_32F) | ||
| 142 | - qFatal("Mat to Eigen Converstation only supports CV_32F"); | ||
| 143 | - | ||
| 144 | - Eigen::MatrixXf data(m.rows, m.cols); | ||
| 145 | - return Eigen::Map<const Eigen::MatrixXf>(m.ptr<float>(), m.rows, m.cols); | ||
| 146 | -} | ||
| 147 | - |
openbr/core/eigenutils.h
| @@ -18,32 +18,74 @@ | @@ -18,32 +18,74 @@ | ||
| 18 | #define EIGENUTILS_H | 18 | #define EIGENUTILS_H |
| 19 | 19 | ||
| 20 | #include <QDataStream> | 20 | #include <QDataStream> |
| 21 | +#include <QDebug> | ||
| 21 | #include <Eigen/Core> | 22 | #include <Eigen/Core> |
| 22 | #include <assert.h> | 23 | #include <assert.h> |
| 23 | 24 | ||
| 25 | +#include <opencv2/core/eigen.hpp> | ||
| 24 | #include <opencv2/core/core.hpp> | 26 | #include <opencv2/core/core.hpp> |
| 25 | 27 | ||
| 26 | -void writeEigen(Eigen::MatrixXf X, QString filename); | ||
| 27 | -void writeEigen(Eigen::MatrixXd X, QString filename); | ||
| 28 | -void writeEigen(Eigen::VectorXd X, QString filename); | ||
| 29 | -void writeEigen(Eigen::VectorXf X, QString filename); | ||
| 30 | -void printEigen(Eigen::MatrixXd X); | ||
| 31 | -void printEigen(Eigen::MatrixXf X); | ||
| 32 | -void printSize(Eigen::MatrixXf X); | 28 | +#include "openbr/core/qtutils.h" |
| 33 | 29 | ||
| 34 | -//Converts x y points in a single vector to two column matrix | ||
| 35 | -Eigen::MatrixXf vectorToMatrix(const Eigen::MatrixXf vector); | ||
| 36 | -Eigen::MatrixXf matrixToVector(const Eigen::MatrixXf matrix); | 30 | +namespace EigenUtils |
| 31 | +{ | ||
| 32 | + template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols> | ||
| 33 | + QString matrixToString(const Eigen::Matrix< _Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols > &mat) | ||
| 34 | + { | ||
| 35 | + QString result; | ||
| 36 | + if (mat.rows() > 1) result += "{ "; | ||
| 37 | + for (int r=0; r<mat.rows(); r++) { | ||
| 38 | + if ((mat.rows() > 1) && (r > 0)) result += " "; | ||
| 39 | + if (mat.cols() > 1) result += "["; | ||
| 40 | + for (int c=0; c<mat.cols(); c++) { | ||
| 41 | + result += QString::number(mat(r, c)); | ||
| 42 | + if (c < mat.cols() - 1) result += ", "; | ||
| 43 | + } | ||
| 44 | + if (mat.cols() > 1) result += "]"; | ||
| 45 | + if (r < mat.rows()-1) result += "\n"; | ||
| 46 | + } | ||
| 47 | + if (mat.rows() > 1) result += " }"; | ||
| 48 | + return result; | ||
| 49 | + } | ||
| 50 | + | ||
| 51 | + template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols> | ||
| 52 | + void writeMatrix(const Eigen::Matrix< _Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols > &mat, const QString &filename) | ||
| 53 | + { | ||
| 54 | + int r = mat.rows(); | ||
| 55 | + int c = mat.cols(); | ||
| 56 | + | ||
| 57 | + _Scalar *data = new _Scalar[r*c]; | ||
| 58 | + for (int i=0; i<r; i++) | ||
| 59 | + for (int j=0; j<c; j++) | ||
| 60 | + data[i*c+j] = mat(i, j); | ||
| 61 | + int bytes = r*c*sizeof(_Scalar); | ||
| 62 | + QByteArray byteArray((const char*)data,bytes); | ||
| 63 | + QtUtils::writeFile(filename,byteArray); | ||
| 64 | + } | ||
| 65 | + | ||
| 66 | + void printSize(Eigen::MatrixXf X); | ||
| 37 | 67 | ||
| 38 | -//Remove row and column from the matrix: | ||
| 39 | -Eigen::MatrixXf removeRowCol(const Eigen::MatrixXf X, int row, int col); | 68 | + // Converts x y points in a single vector to two column matrix |
| 69 | + Eigen::MatrixXf vectorToMatrix(const Eigen::MatrixXf vector); | ||
| 70 | + Eigen::MatrixXf matrixToVector(const Eigen::MatrixXf matrix); | ||
| 40 | 71 | ||
| 41 | -//Convert a point list into a matrix: | ||
| 42 | -Eigen::MatrixXf pointsToMatrix(const QList<QPointF> points, bool isAffine=false); | ||
| 43 | -QList<QPointF> matrixToPoints(const Eigen::MatrixXf P); | 72 | + // Remove row and column from the matrix: |
| 73 | + Eigen::MatrixXf removeRowCol(const Eigen::MatrixXf X, int row, int col); | ||
| 44 | 74 | ||
| 45 | -//Convert cv::Mat to Eigen | ||
| 46 | -Eigen::MatrixXf toEigen(const cv::Mat m); | 75 | + // Convert a point list into a matrix: |
| 76 | + Eigen::MatrixXf pointsToMatrix(const QList<QPointF> points, bool isAffine=false); | ||
| 77 | + QList<QPointF> matrixToPoints(const Eigen::MatrixXf P); | ||
| 78 | + | ||
| 79 | + // Compute the element-wise standard deviation | ||
| 80 | + float stddev(const Eigen::MatrixXf& x); | ||
| 81 | +} | ||
| 82 | + | ||
| 83 | +template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols> | ||
| 84 | +inline QDebug operator<<(QDebug dbg, const Eigen::Matrix< _Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols > &mat) | ||
| 85 | +{ | ||
| 86 | + dbg.nospace() << EigenUtils::matrixToString(mat); | ||
| 87 | + return dbg.space(); | ||
| 88 | +} | ||
| 47 | 89 | ||
| 48 | template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols> | 90 | template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols> |
| 49 | inline QDataStream &operator<<(QDataStream &stream, const Eigen::Matrix< _Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols > &mat) | 91 | inline QDataStream &operator<<(QDataStream &stream, const Eigen::Matrix< _Scalar, _Rows, _Cols, _Options, _MaxRows, _MaxCols > &mat) |
| @@ -83,56 +125,4 @@ inline QDataStream &operator>>(QDataStream &stream, Eigen::Matrix< _Scalar, _Row | @@ -83,56 +125,4 @@ inline QDataStream &operator>>(QDataStream &stream, Eigen::Matrix< _Scalar, _Row | ||
| 83 | return stream; | 125 | return stream; |
| 84 | } | 126 | } |
| 85 | 127 | ||
| 86 | -/*Compute the mean of the each column (dim == 1) or row (dim == 2) | ||
| 87 | - of the matrix*/ | ||
| 88 | -template<typename T> | ||
| 89 | -Eigen::MatrixBase<T> eigMean(const Eigen::MatrixBase<T>& x,int dim) | ||
| 90 | -{ | ||
| 91 | - if (dim == 1) { | ||
| 92 | - Eigen::MatrixBase<T> y(1,x.cols()); | ||
| 93 | - for (int i = 0; i < x.cols(); i++) | ||
| 94 | - y(i) = x.col(i).sum() / x.rows(); | ||
| 95 | - return y; | ||
| 96 | - } else if (dim == 2) { | ||
| 97 | - Eigen::MatrixBase<T> y(x.rows(),1); | ||
| 98 | - for (int i = 0; i < x.rows(); i++) | ||
| 99 | - y(i) = x.row(i).sum() / x.cols(); | ||
| 100 | - return y; | ||
| 101 | - } | ||
| 102 | - qFatal("A matrix can only have two dimensions"); | ||
| 103 | -} | ||
| 104 | - | ||
| 105 | -/*Compute the element-wise mean*/ | ||
| 106 | -float eigMean(const Eigen::MatrixXf& x); | ||
| 107 | -/*Compute the element-wise mean*/ | ||
| 108 | -float eigStd(const Eigen::MatrixXf& x); | ||
| 109 | - | ||
| 110 | -/*Compute the std dev of the each column (dim == 1) or row (dim == 2) | ||
| 111 | - of the matrix*/ | ||
| 112 | -template<typename T> | ||
| 113 | -Eigen::MatrixBase<T> eigStd(const Eigen::MatrixBase<T>& x,int dim) | ||
| 114 | -{ | ||
| 115 | - Eigen::MatrixBase<T> mean = eigMean(x, dim); | ||
| 116 | - if (dim == 1) { | ||
| 117 | - Eigen::MatrixBase<T> y(1,x.cols()); | ||
| 118 | - for (int i = 0; i < x.cols(); i++) { | ||
| 119 | - T value = 0; | ||
| 120 | - for (int j = 0; j < x.rows(); j++) | ||
| 121 | - value += pow(y(j, i) - mean(i), 2); | ||
| 122 | - y(i) = sqrt(value / (x.rows() - 1)); | ||
| 123 | - } | ||
| 124 | - return y; | ||
| 125 | - } else if (dim == 2) { | ||
| 126 | - Eigen::MatrixBase<T> y(x.rows(),1); | ||
| 127 | - for (int i = 0; i < x.rows(); i++) { | ||
| 128 | - T value = 0; | ||
| 129 | - for (int j = 0; j < x.cols(); j++) | ||
| 130 | - value += pow(y(i, j) - mean(j), 2); | ||
| 131 | - y(i) = sqrt(value / (x.cols() - 1)); | ||
| 132 | - } | ||
| 133 | - return y; | ||
| 134 | - } | ||
| 135 | - qFatal("A matrix can only have two dimensions"); | ||
| 136 | -} | ||
| 137 | - | ||
| 138 | #endif // EIGENUTILS_H | 128 | #endif // EIGENUTILS_H |
openbr/plugins/eigen3.cpp
| @@ -600,7 +600,7 @@ class SparseLDATransform : public Transform | @@ -600,7 +600,7 @@ class SparseLDATransform : public Transform | ||
| 600 | 600 | ||
| 601 | //Only works on binary class problems for now | 601 | //Only works on binary class problems for now |
| 602 | assert(ldaOrig.projection.cols() == 1); | 602 | assert(ldaOrig.projection.cols() == 1); |
| 603 | - float ldaStd = eigStd(ldaOrig.projection); | 603 | + float ldaStd = EigenUtils::stddev(ldaOrig.projection); |
| 604 | for (int i = 0; i < ldaOrig.projection.rows(); i++) | 604 | for (int i = 0; i < ldaOrig.projection.rows(); i++) |
| 605 | if (abs(ldaOrig.projection(i)) > varThreshold * ldaStd) | 605 | if (abs(ldaOrig.projection(i)) > varThreshold * ldaStd) |
| 606 | selections.append(i); | 606 | selections.append(i); |
openbr/plugins/stasm4.cpp
| @@ -180,7 +180,7 @@ private: | @@ -180,7 +180,7 @@ private: | ||
| 180 | void project(const Template &src, Template &dst) const | 180 | void project(const Template &src, Template &dst) const |
| 181 | { | 181 | { |
| 182 | QList<float> paramList = src.file.getList<float>("affineParameters"); | 182 | QList<float> paramList = src.file.getList<float>("affineParameters"); |
| 183 | - Eigen::MatrixXf points = pointsToMatrix(src.file.points(), true); | 183 | + Eigen::MatrixXf points = EigenUtils::pointsToMatrix(src.file.points(), true); |
| 184 | Eigen::MatrixXf affine = Eigen::MatrixXf::Zero(3, 3); | 184 | Eigen::MatrixXf affine = Eigen::MatrixXf::Zero(3, 3); |
| 185 | for (int i = 0, cnt = 0; i < 2; i++) | 185 | for (int i = 0, cnt = 0; i < 2; i++) |
| 186 | for (int j = 0; j < 3; j++, cnt++) | 186 | for (int j = 0; j < 3; j++, cnt++) |
| @@ -192,7 +192,7 @@ private: | @@ -192,7 +192,7 @@ private: | ||
| 192 | points = affineInv * pointsT; | 192 | points = affineInv * pointsT; |
| 193 | dst = src; | 193 | dst = src; |
| 194 | dst.file.clearPoints(); | 194 | dst.file.clearPoints(); |
| 195 | - dst.file.setPoints(matrixToPoints(points.transpose())); | 195 | + dst.file.setPoints(EigenUtils::matrixToPoints(points.transpose())); |
| 196 | } | 196 | } |
| 197 | }; | 197 | }; |
| 198 | 198 |