OpenCV
3.0.0-rc1
Open Source Computer Vision
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Cascade classifier class for object detection. More...
#include "objdetect.hpp"
Public Member Functions | |
CascadeClassifier () | |
CascadeClassifier (const String &filename) | |
Loads a classifier from a file. More... | |
~CascadeClassifier () | |
void | detectMultiScale (InputArray image, std::vector< Rect > &objects, double scaleFactor=1.1, int minNeighbors=3, int flags=0, Size minSize=Size(), Size maxSize=Size()) |
Detects objects of different sizes in the input image. The detected objects are returned as a list of rectangles. More... | |
void | detectMultiScale (InputArray image, std::vector< Rect > &objects, std::vector< int > &numDetections, double scaleFactor=1.1, int minNeighbors=3, int flags=0, Size minSize=Size(), Size maxSize=Size()) |
void | detectMultiScale (InputArray image, std::vector< Rect > &objects, std::vector< int > &rejectLevels, std::vector< double > &levelWeights, double scaleFactor=1.1, int minNeighbors=3, int flags=0, Size minSize=Size(), Size maxSize=Size(), bool outputRejectLevels=false) |
bool | empty () const |
Checks whether the classifier has been loaded. More... | |
int | getFeatureType () const |
Ptr < BaseCascadeClassifier::MaskGenerator > | getMaskGenerator () |
void * | getOldCascade () |
Size | getOriginalWindowSize () const |
bool | isOldFormatCascade () const |
bool | load (const String &filename) |
Loads a classifier from a file. More... | |
bool | read (const FileNode &node) |
Reads a classifier from a FileStorage node. More... | |
void | setMaskGenerator (const Ptr< BaseCascadeClassifier::MaskGenerator > &maskGenerator) |
Static Public Member Functions | |
static bool | convert (const String &oldcascade, const String &newcascade) |
Public Attributes | |
Ptr< BaseCascadeClassifier > | cc |
Cascade classifier class for object detection.
cv::CascadeClassifier::CascadeClassifier | ( | ) |
cv::CascadeClassifier::CascadeClassifier | ( | const String & | filename | ) |
Loads a classifier from a file.
filename | Name of the file from which the classifier is loaded. |
cv::CascadeClassifier::~CascadeClassifier | ( | ) |
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static |
void cv::CascadeClassifier::detectMultiScale | ( | InputArray | image, |
std::vector< Rect > & | objects, | ||
double | scaleFactor = 1.1 , |
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int | minNeighbors = 3 , |
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int | flags = 0 , |
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Size | minSize = Size() , |
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Size | maxSize = Size() |
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) |
Detects objects of different sizes in the input image. The detected objects are returned as a list of rectangles.
image | Matrix of the type CV_8U containing an image where objects are detected. |
objects | Vector of rectangles where each rectangle contains the detected object, the rectangles may be partially outside the original image. |
scaleFactor | Parameter specifying how much the image size is reduced at each image scale. |
minNeighbors | Parameter specifying how many neighbors each candidate rectangle should have to retain it. |
flags | Parameter with the same meaning for an old cascade as in the function cvHaarDetectObjects. It is not used for a new cascade. |
minSize | Minimum possible object size. Objects smaller than that are ignored. |
maxSize | Maximum possible object size. Objects larger than that are ignored. |
The function is parallelized with the TBB library.
void cv::CascadeClassifier::detectMultiScale | ( | InputArray | image, |
std::vector< Rect > & | objects, | ||
std::vector< int > & | numDetections, | ||
double | scaleFactor = 1.1 , |
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int | minNeighbors = 3 , |
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int | flags = 0 , |
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Size | minSize = Size() , |
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Size | maxSize = Size() |
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) |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
image | Matrix of the type CV_8U containing an image where objects are detected. |
objects | Vector of rectangles where each rectangle contains the detected object, the rectangles may be partially outside the original image. |
numDetections | Vector of detection numbers for the corresponding objects. An object's number of detections is the number of neighboring positively classified rectangles that were joined together to form the object. |
scaleFactor | Parameter specifying how much the image size is reduced at each image scale. |
minNeighbors | Parameter specifying how many neighbors each candidate rectangle should have to retain it. |
flags | Parameter with the same meaning for an old cascade as in the function cvHaarDetectObjects. It is not used for a new cascade. |
minSize | Minimum possible object size. Objects smaller than that are ignored. |
maxSize | Maximum possible object size. Objects larger than that are ignored. |
void cv::CascadeClassifier::detectMultiScale | ( | InputArray | image, |
std::vector< Rect > & | objects, | ||
std::vector< int > & | rejectLevels, | ||
std::vector< double > & | levelWeights, | ||
double | scaleFactor = 1.1 , |
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int | minNeighbors = 3 , |
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int | flags = 0 , |
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Size | minSize = Size() , |
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Size | maxSize = Size() , |
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bool | outputRejectLevels = false |
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) |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. if outputRejectLevels
is true
returns rejectLevels
and levelWeights
bool cv::CascadeClassifier::empty | ( | ) | const |
Checks whether the classifier has been loaded.
int cv::CascadeClassifier::getFeatureType | ( | ) | const |
Ptr<BaseCascadeClassifier::MaskGenerator> cv::CascadeClassifier::getMaskGenerator | ( | ) |
void* cv::CascadeClassifier::getOldCascade | ( | ) |
Size cv::CascadeClassifier::getOriginalWindowSize | ( | ) | const |
bool cv::CascadeClassifier::isOldFormatCascade | ( | ) | const |
bool cv::CascadeClassifier::load | ( | const String & | filename | ) |
Loads a classifier from a file.
filename | Name of the file from which the classifier is loaded. The file may contain an old HAAR classifier trained by the haartraining application or a new cascade classifier trained by the traincascade application. |
bool cv::CascadeClassifier::read | ( | const FileNode & | node | ) |
Reads a classifier from a FileStorage node.
void cv::CascadeClassifier::setMaskGenerator | ( | const Ptr< BaseCascadeClassifier::MaskGenerator > & | maskGenerator | ) |
Ptr<BaseCascadeClassifier> cv::CascadeClassifier::cc |