Back to Adaptive Vision Library website

You are here: Start » Function Reference » Optical Character Recognition » MakeCharacterSamples

MakeCharacterSamples


Creates training font samples from the provided regions.

Syntax

C++
C#
 
void avl::MakeCharacterSamples
(
	const atl::Array<avl::Region>& inCharacterRegions,
	const atl::String& inCharacters,
	atl::Array<avl::CharacterSample>& outCharacterSamples
)

Parameters

Name Type Default Description
inCharacterRegions const Array<Region>& Array of character regions
inCharacters const String& Character that should be assigned to corresponding regions
outCharacterSamples Array<CharacterSample>& Array of CharacterSamples

Description

The operation creates a set of character samples used to train OcrMlpModel in the TrainOcr_MLP filter. Consecutive letters in inCharacters correspond to consecutive regions in inCharacterRegions.

Remarks

The length of inCharacters must be equal to the size of the inCharacterRegions array.

To read more about how to use OCR technique, refer to Machine Vision Guide: Optical Character Recognition

Errors

Error type Description
DomainError At least a single character should be provided in MakeCharacterSamples.
DomainError The size of inCharacterRegions and the length of inCharacters are not equal in MakeCharacterSamples.
DomainError Parameter inCharacterRegions contains empty region in MakeCharacterSamples.

See Also