cv::Size_< _Tp > 类模板引用

用于指定图像或矩形大小的模板类。更多...

#include <opencv2/core/types.hpp>

cv::Size_< _Tp > 的协作图

公开类型
typedef _Tp	value_type (值类型)

公开成员函数
	Size_ ()
	默认构造函数
	Size_ (_Tp _width, _Tp _height)
	Size_ (const Point_< _Tp > &pt)
	Size_ (const Size_ &sz)=default
	Size_ (Size_ &&sz) CV_NOEXCEPT=default
_Tp	area () const
	面积 (宽度*高度)
double	aspectRatio () const
	纵横比 (宽度/高度)
bool	empty () const
	如果为空，则为 true
template<typename _Tp2 >
	operator Size_< _Tp2 > () const
	转换为其他数据类型。
Size_ &	operator= (const Size_ &sz)=default
Size_ &	operator= (Size_ &&sz) CV_NOEXCEPT=default

公开属性
_Tp	height
	高度
_Tp	width
	宽度

详细说明

template<typename _Tp>
类 cv::Size_< _Tp >

用于指定图像或矩形大小的模板类。

该类包含两个名为 width 和 height 的成员。该结构体可以与旧的 OpenCV 结构体 CvSize 和 CvSize2D32f 进行相互转换。与 Point_ 相同的算术和比较运算符集均可用。

OpenCV 定义了以下 Size_<> 别名

typedef Size_<int> Size2i;
typedef Size2i Size;
typedef Size_<float> Size2f;

示例

modules/shape/samples/shape_example.cpp, samples/cpp/contours2.cpp, samples/cpp/edge.cpp, samples/cpp/facedetect.cpp, samples/cpp/falsecolor.cpp, samples/cpp/fitellipse.cpp, samples/cpp/image_alignment.cpp, samples/cpp/laplace.cpp, samples/cpp/lkdemo.cpp, samples/cpp/peopledetect.cpp, samples/cpp/polar_transforms.cpp, samples/cpp/stitching_detailed.cpp, samples/cpp/train_HOG.cpp, samples/cpp/tutorial_code/ImgProc/Morphology_1.cpp, samples/cpp/tutorial_code/ImgProc/Morphology_2.cpp, samples/cpp/tutorial_code/ImgProc/Pyramids/Pyramids.cpp, samples/cpp/tutorial_code/ImgProc/Smoothing/Smoothing.cpp, samples/cpp/tutorial_code/ImgProc/basic_drawing/Drawing_1.cpp, samples/cpp/tutorial_code/ImgProc/basic_drawing/Drawing_2.cpp, samples/cpp/tutorial_code/ImgTrans/Sobel_Demo.cpp, samples/cpp/tutorial_code/features2D/Homography/decompose_homography.cpp, samples/cpp/tutorial_code/features2D/Homography/homography_from_camera_displacement.cpp, samples/cpp/tutorial_code/features2D/Homography/pose_from_homography.cpp, samples/cpp/tutorial_code/videoio/video-write/video-write.cpp, samples/cpp/warpPerspective_demo.cpp, samples/dnn/classification.cpp, samples/dnn/colorization.cpp, samples/dnn/object_detection.cpp, samples/dnn/openpose.cpp, samples/dnn/segmentation.cpp, samples/dnn/text_detection.cpp, and samples/tapi/hog.cpp.

成员类型定义说明

value_type

template<typename _Tp >

_Tp cv::Size_< _Tp >::value_type

构造函数与析构函数说明

Size_() [1/5]

template<typename _Tp >

cv::Size_< _Tp >::Size_

(

)

默认构造函数

Size_() [2/5]

template<typename _Tp >

cv::Size_< _Tp >::Size_	(	_Tp	_width,
		_Tp	_height )

Size_() [3/5]

template<typename _Tp >

cv::Size_< _Tp >::Size_ ( const Size_< _Tp > & sz )

default

Size_() [4/5]

template<typename _Tp >

cv::Size_< _Tp >::Size_ ( Size_< _Tp > && sz )

default

Size_() [5/5]

template<typename _Tp >

cv::Size_< _Tp >::Size_

(

const Point_< _Tp > &

pt (点)

)

成员函数说明

area()

template<typename _Tp >

_Tp cv::Size_< _Tp >::area

(

)

const

面积 (宽度*高度)

示例

samples/cpp/stitching_detailed.cpp.

aspectRatio()

template<typename _Tp >

double cv::Size_< _Tp >::aspectRatio

(

)

const

纵横比 (宽度/高度)

empty()

template<typename _Tp >

bool cv::Size_< _Tp >::empty

(

)

const

如果为空，则为 true

operator Size_< _Tp2 >()

template<typename _Tp >

template<typename _Tp2 >

cv::Size_< _Tp >::operator Size_< _Tp2 >

(

)

const

转换为其他数据类型。

operator=() [1/2]

template<typename _Tp >

Size_ & cv::Size_< _Tp >::operator= ( const Size_< _Tp > & sz )

default

operator=() [2/2]

template<typename _Tp >

Size_ & cv::Size_< _Tp >::operator= ( Size_< _Tp > && sz )

default

成员数据文档

height

template<typename _Tp >

_Tp cv::Size_< _Tp >::height

高度

示例

samples/cpp/fitellipse.cpp, samples/cpp/stitching_detailed.cpp, samples/cpp/train_HOG.cpp, samples/cpp/tutorial_code/ImgProc/basic_drawing/Drawing_2.cpp, samples/cpp/tutorial_code/features2D/Homography/decompose_homography.cpp, samples/cpp/tutorial_code/features2D/Homography/homography_from_camera_displacement.cpp, samples/cpp/tutorial_code/features2D/Homography/pose_from_homography.cpp, samples/cpp/tutorial_code/videoio/video-write/video-write.cpp, samples/dnn/object_detection.cpp, and samples/dnn/text_detection.cpp.

width

template<typename _Tp >

_Tp cv::Size_< _Tp >::width

宽度

示例

samples/cpp/fitellipse.cpp, samples/cpp/stitching_detailed.cpp, samples/cpp/train_HOG.cpp, samples/cpp/tutorial_code/ImgProc/basic_drawing/Drawing_2.cpp, samples/cpp/tutorial_code/features2D/Homography/decompose_homography.cpp, samples/cpp/tutorial_code/features2D/Homography/homography_from_camera_displacement.cpp, samples/cpp/tutorial_code/features2D/Homography/pose_from_homography.cpp, samples/cpp/tutorial_code/videoio/video-write/video-write.cpp, samples/dnn/object_detection.cpp, and samples/dnn/text_detection.cpp.

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该类的文档由以下文件生成：

• opencv2/core/types.hpp