OpenCV  3.2.0-dev
Open Source Computer Vision
Collaboration diagram for Initalization and Information:

Classes

class  cv::cuda::DeviceInfo
 Class providing functionality for querying the specified GPU properties. More...
 
class  cv::cuda::TargetArchs
 Class providing a set of static methods to check what NVIDIA* card architecture the CUDA module was built for. More...
 

Enumerations

enum  cv::cuda::FeatureSet {
  cv::cuda::FEATURE_SET_COMPUTE_10 = 10,
  cv::cuda::FEATURE_SET_COMPUTE_11 = 11,
  cv::cuda::FEATURE_SET_COMPUTE_12 = 12,
  cv::cuda::FEATURE_SET_COMPUTE_13 = 13,
  cv::cuda::FEATURE_SET_COMPUTE_20 = 20,
  cv::cuda::FEATURE_SET_COMPUTE_21 = 21,
  cv::cuda::FEATURE_SET_COMPUTE_30 = 30,
  cv::cuda::FEATURE_SET_COMPUTE_32 = 32,
  cv::cuda::FEATURE_SET_COMPUTE_35 = 35,
  cv::cuda::FEATURE_SET_COMPUTE_50 = 50,
  cv::cuda::GLOBAL_ATOMICS = FEATURE_SET_COMPUTE_11,
  cv::cuda::SHARED_ATOMICS = FEATURE_SET_COMPUTE_12,
  cv::cuda::NATIVE_DOUBLE = FEATURE_SET_COMPUTE_13,
  cv::cuda::WARP_SHUFFLE_FUNCTIONS = FEATURE_SET_COMPUTE_30,
  cv::cuda::DYNAMIC_PARALLELISM = FEATURE_SET_COMPUTE_35
}
 Enumeration providing CUDA computing features. More...
 

Functions

void cv::cuda::convertFp16 (InputArray _src, OutputArray _dst, Stream &stream=Stream::Null())
 Converts an array to half precision floating number. More...
 
bool cv::cuda::deviceSupports (FeatureSet feature_set)
 checks whether current device supports the given feature More...
 
int cv::cuda::getCudaEnabledDeviceCount ()
 Returns the number of installed CUDA-enabled devices. More...
 
int cv::cuda::getDevice ()
 Returns the current device index set by cuda::setDevice or initialized by default. More...
 
void cv::cuda::printCudaDeviceInfo (int device)
 
void cv::cuda::printShortCudaDeviceInfo (int device)
 
void cv::cuda::resetDevice ()
 Explicitly destroys and cleans up all resources associated with the current device in the current process. More...
 
void cv::cuda::setDevice (int device)
 Sets a device and initializes it for the current thread. More...
 

Detailed Description

Enumeration Type Documentation

#include <core/include/opencv2/core/cuda.hpp>

Enumeration providing CUDA computing features.

Enumerator
FEATURE_SET_COMPUTE_10 
FEATURE_SET_COMPUTE_11 
FEATURE_SET_COMPUTE_12 
FEATURE_SET_COMPUTE_13 
FEATURE_SET_COMPUTE_20 
FEATURE_SET_COMPUTE_21 
FEATURE_SET_COMPUTE_30 
FEATURE_SET_COMPUTE_32 
FEATURE_SET_COMPUTE_35 
FEATURE_SET_COMPUTE_50 
GLOBAL_ATOMICS 
SHARED_ATOMICS 
NATIVE_DOUBLE 
WARP_SHUFFLE_FUNCTIONS 
DYNAMIC_PARALLELISM 

Function Documentation

void cv::cuda::convertFp16 ( InputArray  _src,
OutputArray  _dst,
Stream stream = Stream::Null() 
)

#include <core/include/opencv2/core/cuda.hpp>

Converts an array to half precision floating number.

Parameters
_srcinput array.
_dstoutput array.
streamStream for the asynchronous version.
See also
convertFp16
bool cv::cuda::deviceSupports ( FeatureSet  feature_set)

#include <core/include/opencv2/core/cuda.hpp>

checks whether current device supports the given feature

Referenced by cv::cudev::gridHistogram_(), and cv::cudev::Texture< T >::Texture().

Here is the caller graph for this function:

int cv::cuda::getCudaEnabledDeviceCount ( )

#include <core/include/opencv2/core/cuda.hpp>

Returns the number of installed CUDA-enabled devices.

Use this function before any other CUDA functions calls. If OpenCV is compiled without CUDA support, this function returns 0.

int cv::cuda::getDevice ( )

#include <core/include/opencv2/core/cuda.hpp>

Returns the current device index set by cuda::setDevice or initialized by default.

void cv::cuda::printCudaDeviceInfo ( int  device)

#include <core/include/opencv2/core/cuda.hpp>

void cv::cuda::printShortCudaDeviceInfo ( int  device)

#include <core/include/opencv2/core/cuda.hpp>

void cv::cuda::resetDevice ( )

#include <core/include/opencv2/core/cuda.hpp>

Explicitly destroys and cleans up all resources associated with the current device in the current process.

Any subsequent API call to this device will reinitialize the device.

void cv::cuda::setDevice ( int  device)

#include <core/include/opencv2/core/cuda.hpp>

Sets a device and initializes it for the current thread.

Parameters
deviceSystem index of a CUDA device starting with 0.

If the call of this function is omitted, a default device is initialized at the fist CUDA usage.