OpenCV for Unity
2.6.3
Enox Software / Please refer to OpenCV official document ( http://docs.opencv.org/4.10.0/index.html ) for the details of the argument of the method.

The class implements the Expectation Maximization algorithm. More...
Public Member Functions  
int  getClustersNumber () 
void  setClustersNumber (int val) 
int  getCovarianceMatrixType () 
void  setCovarianceMatrixType (int val) 
TermCriteria  getTermCriteria () 
void  setTermCriteria (TermCriteria val) 
Mat  getWeights () 
Returns weights of the mixtures. More...  
Mat  getMeans () 
Returns the cluster centers (means of the Gaussian mixture) More...  
void  getCovs (List< Mat > covs) 
Returns covariation matrices. More...  
override float  predict (Mat samples, Mat results, int flags) 
Returns posterior probabilities for the provided samples. More...  
override float  predict (Mat samples, Mat results) 
Returns posterior probabilities for the provided samples. More...  
override float  predict (Mat samples) 
Returns posterior probabilities for the provided samples. More...  
double []  predict2 (Mat sample, Mat probs) 
Returns a likelihood logarithm value and an index of the most probable mixture component for the given sample. More...  
bool  trainEM (Mat samples, Mat logLikelihoods, Mat labels, Mat probs) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainEM (Mat samples, Mat logLikelihoods, Mat labels) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainEM (Mat samples, Mat logLikelihoods) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainEM (Mat samples) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainE (Mat samples, Mat means0, Mat covs0, Mat weights0, Mat logLikelihoods, Mat labels, Mat probs) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainE (Mat samples, Mat means0, Mat covs0, Mat weights0, Mat logLikelihoods, Mat labels) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainE (Mat samples, Mat means0, Mat covs0, Mat weights0, Mat logLikelihoods) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainE (Mat samples, Mat means0, Mat covs0, Mat weights0) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainE (Mat samples, Mat means0, Mat covs0) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainE (Mat samples, Mat means0) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainM (Mat samples, Mat probs0, Mat logLikelihoods, Mat labels, Mat probs) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainM (Mat samples, Mat probs0, Mat logLikelihoods, Mat labels) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainM (Mat samples, Mat probs0, Mat logLikelihoods) 
Estimate the Gaussian mixture parameters from a samples set. More...  
bool  trainM (Mat samples, Mat probs0) 
Estimate the Gaussian mixture parameters from a samples set. More...  
Public Member Functions inherited from OpenCVForUnity.MlModule.StatModel  
int  getVarCount () 
Returns the number of variables in training samples. More...  
override bool  empty () 
Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read. More...  
bool  isTrained () 
Returns true if the model is trained. More...  
bool  isClassifier () 
Returns true if the model is classifier. More...  
bool  train (TrainData trainData, int flags) 
Trains the statistical model. More...  
bool  train (TrainData trainData) 
Trains the statistical model. More...  
bool  train (Mat samples, int layout, Mat responses) 
Trains the statistical model. More...  
float  calcError (TrainData data, bool test, Mat resp) 
Computes error on the training or test dataset. More...  
Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm  
IntPtr  getNativeObjAddr () 
virtual void  clear () 
Clears the algorithm state. More...  
void  save (string filename) 
virtual string  getDefaultName () 
Public Member Functions inherited from OpenCVForUnity.DisposableObject  
void  Dispose () 
void  ThrowIfDisposed () 
Static Public Member Functions  
static new EM  __fromPtr__ (IntPtr addr) 
static EM  create () 
static EM  load (string filepath, string nodeName) 
Loads and creates a serialized EM from a file. More...  
static EM  load (string filepath) 
Loads and creates a serialized EM from a file. More...  
Static Public Member Functions inherited from OpenCVForUnity.MlModule.StatModel  
static new StatModel  __fromPtr__ (IntPtr addr) 
Static Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm  
static Algorithm  __fromPtr__ (IntPtr addr) 
Static Public Member Functions inherited from OpenCVForUnity.DisposableObject  
static IntPtr  ThrowIfNullIntPtr (IntPtr ptr) 
Public Attributes  
const int  DEFAULT_NCLUSTERS = 5 
const int  DEFAULT_MAX_ITERS = 100 
const int  START_E_STEP = 1 
const int  START_M_STEP = 2 
const int  START_AUTO_STEP = 0 
const int  COV_MAT_SPHERICAL = 0 
const int  COV_MAT_DIAGONAL = 1 
const int  COV_MAT_GENERIC = 2 
const int  COV_MAT_DEFAULT = COV_MAT_DIAGONAL 
Public Attributes inherited from OpenCVForUnity.MlModule.StatModel  
const int  UPDATE_MODEL = 1 
const int  RAW_OUTPUT = 1 
const int  COMPRESSED_INPUT = 2 
const int  PREPROCESSED_INPUT = 4 
Protected Member Functions  
override void  Dispose (bool disposing) 
Protected Member Functions inherited from OpenCVForUnity.MlModule.StatModel  
override void  Dispose (bool disposing) 
Protected Member Functions inherited from OpenCVForUnity.DisposableOpenCVObject  
DisposableOpenCVObject ()  
DisposableOpenCVObject (IntPtr ptr)  
DisposableOpenCVObject (bool isEnabledDispose)  
DisposableOpenCVObject (IntPtr ptr, bool isEnabledDispose)  
Protected Member Functions inherited from OpenCVForUnity.DisposableObject  
DisposableObject ()  
DisposableObject (bool isEnabledDispose)  
Additional Inherited Members  
Properties inherited from OpenCVForUnity.DisposableObject  
bool  IsDisposed [get, protected set] 
bool  IsEnabledDispose [get, set] 
The class implements the Expectation Maximization algorithm.

static 

static 

protectedvirtual 
Reimplemented from OpenCVForUnity.CoreModule.Algorithm.
int OpenCVForUnity.MlModule.EM.getClustersNumber  (  ) 
int OpenCVForUnity.MlModule.EM.getCovarianceMatrixType  (  ) 
void OpenCVForUnity.MlModule.EM.getCovs  (  List< Mat >  covs  ) 
Returns covariation matrices.
Returns vector of covariation matrices. Number of matrices is the number of gaussian mixtures, each matrix is a square floatingpoint matrix NxN, where N is the space dimensionality.
Mat OpenCVForUnity.MlModule.EM.getMeans  (  ) 
Returns the cluster centers (means of the Gaussian mixture)
Returns matrix with the number of rows equal to the number of mixtures and number of columns equal to the space dimensionality.
TermCriteria OpenCVForUnity.MlModule.EM.getTermCriteria  (  ) 
Mat OpenCVForUnity.MlModule.EM.getWeights  (  ) 
Returns weights of the mixtures.
Returns vector with the number of elements equal to the number of mixtures.

static 
Loads and creates a serialized EM from a file.
Use EM::save to serialize and store an EM to disk. Load the EM from this file again, by calling this function with the path to the file. Optionally specify the node for the file containing the classifier
filepath  path to serialized EM 
nodeName  name of node containing the classifier 

static 
Loads and creates a serialized EM from a file.
Use EM::save to serialize and store an EM to disk. Load the EM from this file again, by calling this function with the path to the file. Optionally specify the node for the file containing the classifier
filepath  path to serialized EM 
nodeName  name of node containing the classifier 
Returns posterior probabilities for the provided samples.
samples  The input samples, floatingpoint matrix 
results  The optional output \( nSamples \times nClusters\) matrix of results. It contains posterior probabilities for each sample from the input 
flags  This parameter will be ignored 
Reimplemented from OpenCVForUnity.MlModule.StatModel.
Returns posterior probabilities for the provided samples.
samples  The input samples, floatingpoint matrix 
results  The optional output \( nSamples \times nClusters\) matrix of results. It contains posterior probabilities for each sample from the input 
flags  This parameter will be ignored 
Reimplemented from OpenCVForUnity.MlModule.StatModel.

virtual 
Returns posterior probabilities for the provided samples.
samples  The input samples, floatingpoint matrix 
results  The optional output \( nSamples \times nClusters\) matrix of results. It contains posterior probabilities for each sample from the input 
flags  This parameter will be ignored 
Reimplemented from OpenCVForUnity.MlModule.StatModel.
Returns a likelihood logarithm value and an index of the most probable mixture component for the given sample.
sample  A sample for classification. It should be a onechannel matrix of \(1 \times dims\) or \(dims \times 1\) size. 
probs  Optional output matrix that contains posterior probabilities of each component given the sample. It has \(1 \times nclusters\) size and CV_64FC1 type. 
The method returns a twoelement double vector. Zero element is a likelihood logarithm value for the sample. First element is an index of the most probable mixture component for the given sample.
void OpenCVForUnity.MlModule.EM.setClustersNumber  (  int  val  ) 
void OpenCVForUnity.MlModule.EM.setCovarianceMatrixType  (  int  val  ) 
void OpenCVForUnity.MlModule.EM.setTermCriteria  (  TermCriteria  val  ) 
bool OpenCVForUnity.MlModule.EM.trainE  (  Mat  samples, 
Mat  means0,  
Mat  covs0,  
Mat  weights0,  
Mat  logLikelihoods,  
Mat  labels,  
Mat  probs  
) 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. You need to provide initial means \(a_k\) of mixture components. Optionally you can pass initial weights \(\pi_k\) and covariance matrices \(S_k\) of mixture components.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
means0  Initial means \(a_k\) of mixture components. It is a onechannel matrix of \(nclusters \times dims\) size. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
covs0  The vector of initial covariance matrices \(S_k\) of mixture components. Each of covariance matrices is a onechannel matrix of \(dims \times dims\) size. If the matrices do not have CV_64F type they will be converted to the inner matrices of such type for the further computing. 
weights0  Initial weights \(\pi_k\) of mixture components. It should be a onechannel floatingpoint matrix with \(1 \times nclusters\) or \(nclusters \times 1\) size. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
bool OpenCVForUnity.MlModule.EM.trainE  (  Mat  samples, 
Mat  means0,  
Mat  covs0,  
Mat  weights0,  
Mat  logLikelihoods,  
Mat  labels  
) 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. You need to provide initial means \(a_k\) of mixture components. Optionally you can pass initial weights \(\pi_k\) and covariance matrices \(S_k\) of mixture components.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
means0  Initial means \(a_k\) of mixture components. It is a onechannel matrix of \(nclusters \times dims\) size. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
covs0  The vector of initial covariance matrices \(S_k\) of mixture components. Each of covariance matrices is a onechannel matrix of \(dims \times dims\) size. If the matrices do not have CV_64F type they will be converted to the inner matrices of such type for the further computing. 
weights0  Initial weights \(\pi_k\) of mixture components. It should be a onechannel floatingpoint matrix with \(1 \times nclusters\) or \(nclusters \times 1\) size. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
bool OpenCVForUnity.MlModule.EM.trainE  (  Mat  samples, 
Mat  means0,  
Mat  covs0,  
Mat  weights0,  
Mat  logLikelihoods  
) 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. You need to provide initial means \(a_k\) of mixture components. Optionally you can pass initial weights \(\pi_k\) and covariance matrices \(S_k\) of mixture components.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
means0  Initial means \(a_k\) of mixture components. It is a onechannel matrix of \(nclusters \times dims\) size. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
covs0  The vector of initial covariance matrices \(S_k\) of mixture components. Each of covariance matrices is a onechannel matrix of \(dims \times dims\) size. If the matrices do not have CV_64F type they will be converted to the inner matrices of such type for the further computing. 
weights0  Initial weights \(\pi_k\) of mixture components. It should be a onechannel floatingpoint matrix with \(1 \times nclusters\) or \(nclusters \times 1\) size. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. You need to provide initial means \(a_k\) of mixture components. Optionally you can pass initial weights \(\pi_k\) and covariance matrices \(S_k\) of mixture components.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
means0  Initial means \(a_k\) of mixture components. It is a onechannel matrix of \(nclusters \times dims\) size. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
covs0  The vector of initial covariance matrices \(S_k\) of mixture components. Each of covariance matrices is a onechannel matrix of \(dims \times dims\) size. If the matrices do not have CV_64F type they will be converted to the inner matrices of such type for the further computing. 
weights0  Initial weights \(\pi_k\) of mixture components. It should be a onechannel floatingpoint matrix with \(1 \times nclusters\) or \(nclusters \times 1\) size. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. You need to provide initial means \(a_k\) of mixture components. Optionally you can pass initial weights \(\pi_k\) and covariance matrices \(S_k\) of mixture components.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
means0  Initial means \(a_k\) of mixture components. It is a onechannel matrix of \(nclusters \times dims\) size. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
covs0  The vector of initial covariance matrices \(S_k\) of mixture components. Each of covariance matrices is a onechannel matrix of \(dims \times dims\) size. If the matrices do not have CV_64F type they will be converted to the inner matrices of such type for the further computing. 
weights0  Initial weights \(\pi_k\) of mixture components. It should be a onechannel floatingpoint matrix with \(1 \times nclusters\) or \(nclusters \times 1\) size. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. You need to provide initial means \(a_k\) of mixture components. Optionally you can pass initial weights \(\pi_k\) and covariance matrices \(S_k\) of mixture components.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
means0  Initial means \(a_k\) of mixture components. It is a onechannel matrix of \(nclusters \times dims\) size. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
covs0  The vector of initial covariance matrices \(S_k\) of mixture components. Each of covariance matrices is a onechannel matrix of \(dims \times dims\) size. If the matrices do not have CV_64F type they will be converted to the inner matrices of such type for the further computing. 
weights0  Initial weights \(\pi_k\) of mixture components. It should be a onechannel floatingpoint matrix with \(1 \times nclusters\) or \(nclusters \times 1\) size. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. Initial values of the model parameters will be estimated by the kmeans algorithm.
Unlike many of the ML models, EM is an unsupervised learning algorithm and it does not take responses (class labels or function values) as input. Instead, it computes the Maximum Likelihood Estimate of the Gaussian mixture parameters from an input sample set, stores all the parameters inside the structure: \(p_{i,k}\) in probs, \(a_k\) in means , \(S_k\) in covs[k], \(\pi_k\) in weights , and optionally computes the output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample).
The trained model can be used further for prediction, just like any other classifier. The trained model is similar to the NormalBayesClassifier.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. Initial values of the model parameters will be estimated by the kmeans algorithm.
Unlike many of the ML models, EM is an unsupervised learning algorithm and it does not take responses (class labels or function values) as input. Instead, it computes the Maximum Likelihood Estimate of the Gaussian mixture parameters from an input sample set, stores all the parameters inside the structure: \(p_{i,k}\) in probs, \(a_k\) in means , \(S_k\) in covs[k], \(\pi_k\) in weights , and optionally computes the output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample).
The trained model can be used further for prediction, just like any other classifier. The trained model is similar to the NormalBayesClassifier.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. Initial values of the model parameters will be estimated by the kmeans algorithm.
Unlike many of the ML models, EM is an unsupervised learning algorithm and it does not take responses (class labels or function values) as input. Instead, it computes the Maximum Likelihood Estimate of the Gaussian mixture parameters from an input sample set, stores all the parameters inside the structure: \(p_{i,k}\) in probs, \(a_k\) in means , \(S_k\) in covs[k], \(\pi_k\) in weights , and optionally computes the output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample).
The trained model can be used further for prediction, just like any other classifier. The trained model is similar to the NormalBayesClassifier.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
bool OpenCVForUnity.MlModule.EM.trainEM  (  Mat  samples  ) 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Expectation step. Initial values of the model parameters will be estimated by the kmeans algorithm.
Unlike many of the ML models, EM is an unsupervised learning algorithm and it does not take responses (class labels or function values) as input. Instead, it computes the Maximum Likelihood Estimate of the Gaussian mixture parameters from an input sample set, stores all the parameters inside the structure: \(p_{i,k}\) in probs, \(a_k\) in means , \(S_k\) in covs[k], \(\pi_k\) in weights , and optionally computes the output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample).
The trained model can be used further for prediction, just like any other classifier. The trained model is similar to the NormalBayesClassifier.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
bool OpenCVForUnity.MlModule.EM.trainM  (  Mat  samples, 
Mat  probs0,  
Mat  logLikelihoods,  
Mat  labels,  
Mat  probs  
) 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Maximization step. You need to provide initial probabilities \(p_{i,k}\) to use this option.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
probs0  the probabilities 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Maximization step. You need to provide initial probabilities \(p_{i,k}\) to use this option.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
probs0  the probabilities 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Maximization step. You need to provide initial probabilities \(p_{i,k}\) to use this option.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
probs0  the probabilities 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
Estimate the Gaussian mixture parameters from a samples set.
This variation starts with Maximization step. You need to provide initial probabilities \(p_{i,k}\) to use this option.
samples  Samples from which the Gaussian mixture model will be estimated. It should be a onechannel matrix, each row of which is a sample. If the matrix does not have CV_64F type it will be converted to the inner matrix of such type for the further computing. 
probs0  the probabilities 
logLikelihoods  The optional output matrix that contains a likelihood logarithm value for each sample. It has \(nsamples \times 1\) size and CV_64FC1 type. 
labels  The optional output "class label" for each sample: \(\texttt{labels}_i=\texttt{arg max}_k(p_{i,k}), i=1..N\) (indices of the most probable mixture component for each sample). It has \(nsamples \times 1\) size and CV_32SC1 type. 
probs  The optional output matrix that contains posterior probabilities of each Gaussian mixture component given the each sample. It has \(nsamples \times nclusters\) size and CV_64FC1 type. 
const int OpenCVForUnity.MlModule.EM.COV_MAT_DEFAULT = COV_MAT_DIAGONAL 
const int OpenCVForUnity.MlModule.EM.COV_MAT_DIAGONAL = 1 
const int OpenCVForUnity.MlModule.EM.COV_MAT_GENERIC = 2 
const int OpenCVForUnity.MlModule.EM.COV_MAT_SPHERICAL = 0 
const int OpenCVForUnity.MlModule.EM.DEFAULT_MAX_ITERS = 100 
const int OpenCVForUnity.MlModule.EM.DEFAULT_NCLUSTERS = 5 
const int OpenCVForUnity.MlModule.EM.START_AUTO_STEP = 0 
const int OpenCVForUnity.MlModule.EM.START_E_STEP = 1 
const int OpenCVForUnity.MlModule.EM.START_M_STEP = 2 