utility.hpp File Reference

#include "opencv2/core.hpp"
#include <ostream>
#include <functional>
#include <mutex>

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Classes
class	cv::AutoBuffer< _Tp, fixed_size >
	Automatically Allocated Buffer Class. More...
class	cv::CommandLineParser
	Designed for command line parsing. More...
class	cv::Node< OBJECT >
class	cv::ParallelLoopBody
	Base class for parallel data processors. More...
class	cv::ParallelLoopBodyLambdaWrapper
class	cv::TickMeter
	a Class to measure passing time. More...

Namespaces
namespace	cv
namespace	cv::samples
namespace	cv::utils

Macros
#define	CV_IMPL_ADD(impl)
	Collect implementation data on OpenCV function call. Requires ENABLE_IMPL_COLLECTION build option.

Typedefs
typedef std::lock_guard< cv::Mutex >	cv::AutoLock
typedef int(*	cv::ErrorCallback) (int status, const char *func_name, const char *err_msg, const char *file_name, int line, void *userdata)
typedef std::recursive_mutex	cv::Mutex

Enumerations
enum	cv::AlgorithmHint {   cv::ALGO_HINT_DEFAULT = 0 ,   cv::ALGO_HINT_ACCURATE = 1 ,   cv::ALGO_HINT_APPROX = 2 }
	Flags that allow to modify some functions' behavior. Used as set of flags. More...

Functions
void	cv::samples::addSamplesDataSearchPath (const cv::String &path)
	Override search data path by adding new search location.
void	cv::samples::addSamplesDataSearchSubDirectory (const cv::String &subdir)
	Append samples search data sub directory.
template<typename _Tp >
static _Tp *	cv::alignPtr (_Tp *ptr, int n=(int) sizeof(_Tp))
	Aligns a pointer to the specified number of bytes.
static size_t	cv::alignSize (size_t sz, int n)
	Aligns a buffer size to the specified number of bytes.
bool	cv::checkHardwareSupport (int feature)
	Returns true if the specified feature is supported by the host hardware.
static int	cv::divUp (int a, unsigned int b)
	Integer division with result round up.
static size_t	cv::divUp (size_t a, unsigned int b)
cv::String	cv::samples::findFile (const cv::String &relative_path, bool required=true, bool silentMode=false)
	Try to find requested data file.
cv::String	cv::samples::findFileOrKeep (const cv::String &relative_path, bool silentMode=false)
const String &	cv::getBuildInformation ()
	Returns full configuration time cmake output.
std::string	cv::getCPUFeaturesLine ()
	Returns list of CPU features enabled during compilation.
int64	cv::getCPUTickCount ()
	Returns the number of CPU ticks.
AlgorithmHint	cv::getDefaultAlgorithmHint ()
	Returns AlgorithmHint defined during OpenCV compilation. Defines ALGO_HINT_DEFAULT behavior.
static size_t	cv::getElemSize (int type)
String	cv::getHardwareFeatureName (int feature)
	Returns feature name by ID.
int	cv::getNumberOfCPUs ()
	Returns the number of logical CPUs available for the process.
int	cv::getNumThreads ()
	Returns the number of threads used by OpenCV for parallel regions.
int	cv::utils::getThreadID ()
int	cv::getThreadNum ()
	Returns the index of the currently executed thread within the current parallel region. Always returns 0 if called outside of parallel region.
int64	cv::getTickCount ()
	Returns the number of ticks.
double	cv::getTickFrequency ()
	Returns the number of ticks per second.
int	cv::getVersionMajor ()
	Returns major library version.
int	cv::getVersionMinor ()
	Returns minor library version.
int	cv::getVersionRevision ()
	Returns revision field of the library version.
String	cv::getVersionString ()
	Returns library version string.
void	cv::glob (String pattern, std::vector< String > &result, bool recursive=false)
	Searches for files matching the specified pattern in a directory.
template<int N, typename T >
static bool	cv::isAligned (const T &data)
	Alignment check of passed values.
template<int N>
static bool	cv::isAligned (const void *p1)
template<int N>
static bool	cv::isAligned (const void *p1, const void *p2)
template<int N>
static bool	cv::isAligned (const void *p1, const void *p2, const void *p3)
template<int N>
static bool	cv::isAligned (const void *p1, const void *p2, const void *p3, const void *p4)
static std::ostream &	cv::operator<< (std::ostream &out, const TickMeter &tm)
	output operator
void	cv::parallel_for_ (const Range &range, const ParallelLoopBody &body, double nstripes=-1.)
	Parallel data processor.
static void	cv::parallel_for_ (const Range &range, std::function< void(const Range &)> functor, double nstripes=-1.)
ErrorCallback	cv::redirectError (ErrorCallback errCallback, void *userdata=0, void **prevUserdata=0)
	Sets the new error handler and the optional user data.
static int	cv::roundUp (int a, unsigned int b)
	Round first value up to the nearest multiple of second value.
static size_t	cv::roundUp (size_t a, unsigned int b)
bool	cv::setBreakOnError (bool flag)
	Sets/resets the break-on-error mode.
void	cv::setNumThreads (int nthreads)
	OpenCV will try to set the number of threads for subsequent parallel regions.
void	cv::setUseOptimized (bool onoff)
	Enables or disables the optimized code.
String	cv::tempfile (const char *suffix=0)
	Generates a unique temporary file name.
bool	cv::useOptimized ()
	Returns the status of optimized code usage.

Macro Definition Documentation

CV_IMPL_ADD

#define CV_IMPL_ADD

(

impl

)

Collect implementation data on OpenCV function call. Requires ENABLE_IMPL_COLLECTION build option.