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Invoke.TrainOcr_SVM

Trains an OCR support vector machines classifier.

Namespace:Avl
Assembly:AvlNet.dll

Syntax

C++
C#
 
public static void TrainOcr_SVM
(
	List<Avl.CharacterSample> inCharacterSamples,
	Avl.Size inNormalizationSize,
	Optional<float> inNu,
	Optional<float> inKernelGamma,
	float inRegularizationConstant,
	float inStopEpsilon,
	bool inUseShrinkingHeuristics,
	Optional<Avl.Size> inCharacterSize,
	Optional<int> inRandomSeed,
	Avl.CharacterFeatures inCharacterFeatures,
	Avl.OcrModel outOcrModel,
	out float outTrainingAccuracy,
	Diagnostic<List<Avl.Image>> diagNormalizedCharacters
)

Parameters

Name Type Range Default Description
inCharacterSamplesSystem.Collections.Generic.List<Avl.CharacterSample>Training font created from sample regions.
inNormalizationSizeAvl.Size(Width: 16, Height: 16)The character size after normalization. Default value: (Width: 16, Height: 16).
inNuAtl.Optional<float><0.0f, 1.0f>Trade-off between training accuracy and number of supported vectors. Default value: atl::NIL.
inKernelGammaAtl.Optional<float>Gamma parameter for RBF kernel. Default value: atl::NIL.
inRegularizationConstantfloat<0.0f, INF>1.0fPreventing overfitting. Default value: 1.0f.
inStopEpsilonfloat0.001fEpsilon for stopping criterion. Default value: 0.001f.
inUseShrinkingHeuristicsboolTrueHeuristics may speed up computations. Default value: True.
inCharacterSizeAtl.Optional<Avl.Size>Size of fixed width font. Default value: atl::NIL.
inRandomSeedAtl.Optional<int><0, +INF>Random seed used to train classifier. Default value: atl::NIL.
inCharacterFeaturesAvl.CharacterFeatures(Pixels: True)Character features used to identify characters. Default value: (Pixels: True).
outOcrModelAvl.OcrModelTrained OcrSvmModel used to recognize characters.
outTrainingAccuracyfloatThe overall training score.
diagNormalizedCharactersAvl.Diagnostic<System.Collections.Generic.List<Avl.Image>>Images of normalized characters used to train classifier.

See also