cv::FontFace Class Reference

Wrapper on top of a truetype/opentype/etc font, i.e. Freetype's FT_Face. More...

#include <opencv2/imgproc.hpp>

Collaboration diagram for cv::FontFace:

Public Member Functions
	FontFace ()
	loads default font
	FontFace (const String &fontPathOrName)
	loads font at the specified path or with specified name.
	~FontFace ()
bool	getInstance (std::vector< int > &params) const
String	getName () const
Impl *	operator-> ()
bool	set (const String &fontPathOrName)
	loads new font face
bool	setInstance (const std::vector< int > &params)
	sets the current variable font instance.

Static Public Member Functions
static bool	getBuiltinFontData (const String &fontName, const uchar *&data, size_t &datasize)

Protected Attributes
Ptr< Impl >	impl

Detailed Description

Wrapper on top of a truetype/opentype/etc font, i.e. Freetype's FT_Face.

The class is used to store the loaded fonts; the font can then be passed to the functions putText and getTextSize.

Examples

samples/dnn/classification.cpp, samples/dnn/object_detection.cpp, samples/dnn/segmentation.cpp, and samples/dnn/text_detection.cpp.

Constructor & Destructor Documentation

FontFace() [1/2]

cv::FontFace::FontFace

(

)

Python:
	cv.FontFace(		) ->	<FontFace object>
	cv.FontFace(	fontPathOrName	) ->	<FontFace object>

loads default font

FontFace() [2/2]

cv::FontFace::FontFace

(

const String &

fontPathOrName

)

Python:
	cv.FontFace(		) ->	<FontFace object>
	cv.FontFace(	fontPathOrName	) ->	<FontFace object>

loads font at the specified path or with specified name.

Parameters

fontPathOrName

either path to the custom font or the name of embedded font: "sans", "italic" or "uni". Empty fontPathOrName means the default embedded font.

~FontFace()

cv::FontFace::~FontFace

(

)

Member Function Documentation

getBuiltinFontData()

static bool cv::FontFace::getBuiltinFontData ( const String &  fontName, const uchar *&  data, size_t &  datasize  )

static

getInstance()

bool cv::FontFace::getInstance

(

std::vector< int > &

params

)

const

Python:
	cv.FontFace.getInstance(		) ->	retval, params

getName()

String cv::FontFace::getName

(

)

const

Python:
	cv.FontFace.getName(		) ->	retval

operator->()

Impl * cv::FontFace::operator->

(

)

set()

bool cv::FontFace::set

(

const String &

fontPathOrName

)

Python:
	cv.FontFace.set(	fontPathOrName	) ->	retval

loads new font face

setInstance()

bool cv::FontFace::setInstance

(

const std::vector< int > &

params

)

Python:
	cv.FontFace.setInstance(	params	) ->	retval

sets the current variable font instance.

Parameters

params

The list of pairs key1, value1, key2, value2, ..., e.g. ‘myfont.setInstance({CV_FOURCC('w’,'g','h','t'), 400<<16, CV_FOURCC('s','l','n','t'), -(15<<16)});` Note that the parameter values are specified in 16.16 fixed-point format, that is, integer values need to be shifted by 16 (or multiplied by 65536).

Member Data Documentation

impl

Ptr<Impl> cv::FontFace::impl

protected

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The documentation for this class was generated from the following file:

• opencv2/imgproc.hpp