ContourDetector structure provides detection of contours at the image. More...

Public Types
typedef A< uint8_t >	Allocator

typedef Simd::View< A >	View

typedef Simd::Point< ptrdiff_t >	Size

typedef Simd::Point< ptrdiff_t >	Point

typedef Rectangle< ptrdiff_t >	Rect

typedef std::vector< Point >	Contour

typedef std::vector< Contour >	Contours

Public Member Functions
void	Init (Size size)

bool	Detect (const View &src, Contours &contours, const View &mask=View(), uint8_t indexMin=3, const Rect &roi=Rect(), int gradientThreshold=40, int anchorThreshold=0, int anchorScanInterval=2, int minSegmentLength=2)

Detailed Description

template<template< class > class A>
struct Simd::ContourDetector< A >

ContourDetector structure provides detection of contours at the image.

Using example:

#include "Simd/SimdContour.hpp"
#include "Simd/SimdDrawing.hpp"

int main()
{
    typedef Simd::ContourDetector<Simd::Allocator> ContourDetector;

    ContourDetector::View image;
    image.Load("../../data/image/face/lena.pgm");

    ContourDetector contourDetector;

    contourDetector.Init(image.Size());

    ContourDetector::Contours contours;
    contourDetector.Detect(image, contours);

    for (size_t i = 0; i < contours.size(); ++i)
    {
        for (size_t j = 1; j < contours[i].size(); ++j)
            Simd::DrawLine(image, contours[i][j - 1], contours[i][j], uint8_t(255));
    }
    image.Save("result.pgm");

    return 0;
}

Member Typedef Documentation

◆ Allocator

typedef A<uint8_t> Allocator

Allocator type definition.

◆ View

typedef Simd::View<A> View

An image type definition.

◆ Size

typedef Simd::Point<ptrdiff_t> Size

An image size type definition.

◆ Point

typedef Simd::Point<ptrdiff_t> Point

A point type definition.

◆ Rect

typedef Rectangle<ptrdiff_t> Rect

A rectangle type definition.

◆ Contour

typedef std::vector<Point> Contour

A contour type definition.

◆ Contours

typedef std::vector<Contour> Contours

A vector of contours type definition.

Member Function Documentation

◆ Init()

void Init ( Size size )

Prepares ContourDetector structure to work with image of given size.

Parameters

[in] size - a size of input image.

◆ Detect()

bool Detect	(	const View &	src,
		Contours &	contours,
		const View &	mask = `View()`,
		uint8_t	indexMin = `3`,
		const Rect &	roi = `Rect()`,
		int	gradientThreshold = `40`,
		int	anchorThreshold = `0`,
		int	anchorScanInterval = `2`,
		int	minSegmentLength = `2`
	)

Detects contours at given image.