Utils.H File Reference

#include <map>
#include <string>
#include <opencv2/core/core.hpp>
#include <tensorflow/lite/c/common.h>
#include <ovxlib/vsi_nn_pub.h>
#include <hailo/hailort.h>
#include <onnxruntime_cxx_api.h>
#include <jevois/DNN/details/UtilsImpl.H>

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Namespaces
namespace	jevois
	Main namespace for all JeVois classes and functions.
namespace	jevois::dnn
	Deep neural networks.

Functions
std::map< int, std::string >	jevois::dnn::readLabelsFile (std::string const &fname)
	Read a label file.
std::string	jevois::dnn::getLabel (std::map< int, std::string > const &labels, int id, bool namedonly=false)
	Get a label from an id.
int	jevois::dnn::stringToRGBA (std::string const &label, unsigned char alpha=128)
	Compute a color from a label name.
void	jevois::dnn::topK (float const *pfProb, float *pfMaxProb, uint32_t *pMaxClass, uint32_t outputCount, uint32_t topNum)
	Get top-k entries and their indices.
std::string	jevois::dnn::shapestr (cv::Mat const &m)
	Get a string of the form: "nD AxBxC... TYPE" from an n-dimensional cv::Mat with data type TYPE.
std::string	jevois::dnn::shapestr (std::vector< size_t > dims, int typ)
	Get a string of the form: "nD AxBxC... TYPE" from an n-dimensional size vector and OpenCV data type TYPE.
std::string	jevois::dnn::shapestr (std::vector< int > dims, int typ)
	Get a string of the form: "nD AxBxC... TYPE" from an n-dimensional size vector and OpenCV data type TYPE.
std::string	jevois::dnn::shapestr (TfLiteTensor const *t)
	Get a string of the form: "nD AxBxC... TYPE" from an n-dimensional TfLiteTensor with data type TYPE.
std::string	jevois::dnn::shapestr (vsi_nn_tensor_attr_t const &attr)
	Get a string of the form: "nD AxBxC... TYPE" from an n-dimensional NPU tensor with data type TYPE.
std::vector< size_t >	jevois::dnn::strshape (std::string const &str)
	Get a vector of size_t from a string containing AxBxC...
int	jevois::dnn::tf2cv (TfLiteType t)
	Convert from TensorFlow data type to OpenCV.
vsi_nn_type_e	jevois::dnn::tf2vsi (TfLiteType t)
	Convert from TensorFlow data type to vsi_nn.
int	jevois::dnn::vsi2cv (vsi_nn_type_e t)
	Convert from NPU data type to OpenCV.
void	jevois::dnn::clamp (cv::Rect &r, int width, int height)
	Clamp a rectangle to within given image width and height.
void	jevois::dnn::clamp (cv::Rect2f &r, float width, float height)
	Clamp a rectangle to within given image width and height.
std::vector< vsi_nn_tensor_attr_t >	jevois::dnn::parseTensorSpecs (std::string const &specs)
	Parse tensor specification.
cv::Mat	jevois::dnn::attrmat (vsi_nn_tensor_attr_t const &attr, void *dataptr=nullptr)
	Construct a cv::Mat from attr and possibly data pointer.
std::vector< int >	jevois::dnn::attrdims (vsi_nn_tensor_attr_t const &attr)
	Get a tensor dims as a vector of int, useful to construct a matching cv::Mat.
cv::Size	jevois::dnn::attrsize (vsi_nn_tensor_attr_t const &attr)
	Get a tensor's (width, height) size in cv::Size format, skipping over other dimensions.
std::string	jevois::dnn::attrstr (vsi_nn_tensor_attr_t const &attr)
	Get a string describing the specs of a tensor, including quantification specs (not provided by shapestr())
bool	jevois::dnn::attrmatch (vsi_nn_tensor_attr_t const &attr, cv::Mat const &blob)
	Check that a cv::Mat blob matches exactly the spec of an attr.
vsi_nn_tensor_attr_t	jevois::dnn::tensorattr (TfLiteTensor const *t)
	Get tensor shape and type attributes for a TensorFlow Lite tensor.
float	jevois::dnn::fastexp (float x)
	Compute fast exponential using approximation formula.
float	jevois::dnn::sigmoid (float x)
	Compute sigmoid using fastexp.
void	jevois::dnn::sigmoid (cv::Mat &m)
	Compute sigmoid using fastexp on every pixel of a Mat of type CV_32F, in-place.
size_t	jevois::dnn::softmax (float const *input, size_t const n, size_t const stride, float const fac, float *output, bool maxonly)
	Apply softmax to a float vector.
float	jevois::dnn::softmax_dfl (float const *src, float *dst, size_t const n, size_t const stride=1)
	Compute softmax and return DFL distance.
cv::Mat	jevois::dnn::quantize (cv::Mat const &m, vsi_nn_tensor_attr_t const &attr)
	Quantize from float32 to fixed-point according to the quantization spec in attr.
cv::Mat	jevois::dnn::dequantize (cv::Mat const &m, vsi_nn_tensor_attr_t const &attr)
	Dequantize an output to float32 according to the quantization spec in attr.
size_t	jevois::dnn::effectiveDims (cv::Mat const &m)
	Returns the number of non-unit dims in a cv::Mat.
cv::Mat	jevois::dnn::concatenate (std::vector< cv::Mat > const &tensors, int axis)
	Concatenate several tensors into one.
std::vector< cv::Mat >	jevois::dnn::split (cv::Mat const &tensor, int axis, std::vector< int > const &sizes)
	Split a tensor into several, along a given axis.
std::string	jevois::dnn::shapestr (hailo_vstream_info_t const &vi)
	Get a string of the form: "nD AxBxC... TYPE" from an n-dimensional Hailo tensor with data type TYPE.
vsi_nn_tensor_attr_t	jevois::dnn::tensorattr (hailo_vstream_info_t const &vi)
	Get tensor shape and type attributes for a Hailo tensor.
vsi_nn_type_e	jevois::dnn::hailo2vsi (hailo_format_type_t t)
	Convert from Hailo data type to vsi_nn.
vsi_nn_type_e	jevois::dnn::onnx2vsi (ONNXTensorElementDataType t)
	Convert from ONNX-Runtime data type to vsi_nn.
std::string	jevois::dnn::shapestr (Ort::ConstTensorTypeAndShapeInfo const &ti)
	Get a string of the form: "nD AxBxC... TYPE" from an n-dimensional ONNX tensor with data type TYPE.
vsi_nn_tensor_attr_t	jevois::dnn::tensorattr (Ort::ConstTensorTypeAndShapeInfo const &ti)
	Get tensor shape and type attributes for an ONNX-runtime tensor.