Class CvText

cv::text functions

Inheritance

System.Object

CvText

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: OpenCvSharp.Text

Assembly: OpenCvSharp.dll

Syntax

public static class CvText

Methods

DetectTextSWT(InputArray, Boolean, OutputArray, OutputArray)

Applies the Stroke Width Transform operator followed by filtering of connected components of similar Stroke Widths to return letter candidates. It also chain them by proximity and size, saving the result in chainBBs.

Declaration

public static Rect[] DetectTextSWT(InputArray input, bool darkOnLight, OutputArray draw = null, OutputArray chainBBs = null)

Parameters

Type	Name	Description
InputArray	input	input the input image with 3 channels.
System.Boolean	darkOnLight	a boolean value signifying whether the text is darker or lighter than the background, it is observed to reverse the gradient obtained from Scharr operator, and significantly affect the result.
OutputArray	draw	an optional Mat of type CV_8UC3 which visualises the detected letters using bounding boxes.
OutputArray	chainBBs	an optional parameter which chains the letter candidates according to heuristics in the paper and returns all possible regions where text is likely to occur.

Returns

Type	Description
OpenCvSharp.Rect[]	a vector of resulting bounding boxes where probability of finding text is high