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ImFusion SDK 4.3
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ImFusion SDK 4.3
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#include <ImFusion/ML/DataLoaders/SampleDataLoader.h>
Extract samples from each item in the nested loader. More...
Inheritance diagram for SampleDataLoader:Extract samples from each item in the nested loader.
Public Member Functions | |
| SampleDataLoader (std::unique_ptr< DataLoader > loader, const std::vector< Operation::Specs > &specs={}, int numParallelCalls=1, int seed=-1, bool verbose=false) | |
| Constructs a sampling loader. | |
| SampleDataLoader (DataLoaderList dataLoaders, const Properties &prop) | |
| SampleDataLoader (std::unique_ptr< DataLoader > loader, const std::vector< std::shared_ptr< ImageROISampler > > &samplers, std::optional< std::vector< float > > weights, int numParallelCalls=1, int seed=-1, bool verbose=false) | |
| std::optional< DataItem > | next () override |
| Advance the loader by one iteration. | |
| std::optional< size_t > | size () const override |
| Size of the loader, has value only for fixed cardinalities. | |
| void | reinit () override |
| Re-seeds the samplers and the random choice of the sampler to use. | |
| void | configure (const Properties *prop) override |
| Configure this object instance by de-serializing the given Properties. | |
| void | setRandomSeed (unsigned int seed) override |
| ML::Status | canBePrefetched () const override |
| Indicates whether a loader is eligible for prefetching. | |
| Public Member Functions inherited from DataLoader | |
| DataLoader (std::string name, bool verbose=false) | |
| Constructor to be used by DataReaders, as they are the first elements in the chain. | |
| DataLoader (std::string name, std::unique_ptr< DataLoader > loader, bool verbose=false) | |
| Constructor to be used by all other derived DataLoaders. | |
| DataLoader (std::string name, DataLoaderList &&dataLoaders, bool verbose=false) | |
| Constructor to be used by all other derived DataLoaders. | |
| const std::string & | name () const |
| Name of the loader. | |
| virtual void | reset () |
| Reset the loader in order to restart the iteration. | |
| virtual Cardinality | cardinality () const |
| Cardinality of this specific loader node. | |
| DataLoader * | singleUnderlyingLoader () const |
| Return a single underlying dataloader Expects there to be only one, returns a nullptr otherwise. | |
| std::unique_ptr< DataLoader > | extractDataloader () |
| Return a single underlying dataloader Expects there to be only one, throws an exception otherwise. | |
| DataLoaderList & | loaders () |
| DataLoaderList const & | loaders () const |
| bool | verbose () const |
| const std::string & | logDomain () const |
| Log domain for AdvancedParameter. | |
| Public Member Functions inherited from Configurable | |
| virtual void | configuration (Properties *p) const |
| Serialize the current object configuration into the given Properties object. | |
| virtual void | configureDefaults () |
| Retrieve the properties of this object, replaces values with their defaults and sets it again. | |
| void | registerParameter (ParameterBase *param) |
| Register the given Parameter or SubProperty, so that it will be configured during configure()/configuration(). | |
| void | unregisterParameter (const ParameterBase *param) |
| Remove the given Parameter or SubProperty from the list of registered parameters. | |
| Configurable (const Configurable &rhs) | |
| Configurable (Configurable &&rhs) noexcept | |
| Configurable & | operator= (const Configurable &) |
| Configurable & | operator= (Configurable &&) noexcept |
Additional Inherited Members | |
| Public Attributes inherited from DataLoader | |
| LoaderParam< bool > | m_verbose = {"verbose", false, this, ParamRequired::No} |
| If enabled, print log messages with extra information like timings. | |
| Public Attributes inherited from Configurable | |
| Signal | signalParametersChanged |
Emitted whenever one of the registered Parameters' or SubPropertys' signalValueChanged signal was emitted. | |
| Protected Member Functions inherited from NotCopyable | |
| NotCopyable (NotCopyable &&) noexcept=default | |
| NotCopyable & | operator= (NotCopyable &&) noexcept=default |
| NotCopyable (const NotCopyable &)=delete | |
| NotCopyable & | operator= (const NotCopyable &)=delete |
| Protected Attributes inherited from DataLoader | |
| std::string | m_name |
| Cardinality | m_cardinality = Cardinality::Fixed |
| Random::Generator | m_randGenerator |
| DataLoaderList | m_dataLoaders |
| Protected Attributes inherited from Configurable | |
| std::vector< Param > | m_params |
| List of all registered Parameter and SubProperty instances. | |
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explicit |
Constructs a sampling loader.
| loader | previous loader |
| specs | specifications for the sampling pipeline |
| numParallelCalls | how many asynchronous processes are used for preprocessing the dataset |
| seed | random seed for the sampler selection |
| verbose | prints more information if set to true |
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overridevirtual |
Advance the loader by one iteration.
The function must pull an item from the underlying node, process it and return it. If the underlyng loader is exhausted, returns an empty optional.
Implements DataLoader.
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overridevirtual |
Size of the loader, has value only for fixed cardinalities.
Implements DataLoader.
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overridevirtual |
Re-seeds the samplers and the random choice of the sampler to use.
Reimplemented from DataLoader.
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overridevirtual |
Configure this object instance by de-serializing the given Properties.
The default implementation will do so automatically for all registered Parameter and SubProperty instances.
Reimplemented from DataLoader.
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overridevirtual |
Reimplemented from DataLoader.
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overridevirtual |
Indicates whether a loader is eligible for prefetching.
Typically, a loader can be prefetched if its code can be executed on any thread. However, if the code to be executed in the prefetcher requires the main thread or acquires state that cannot be released by other threads (such as the Python Global Interpreter Lock), this function must return an error code and a message explaining why.
Returns: A status object indicating whether the loader can be prefetched (OK) or not (error code).
Reimplemented from DataLoader.
