ConvexHull2d

Fills the concavities of particles in a two-dimensional binary image.

Access to parameter description

For an introduction:

section Mathematical Morphology
section Hit-Or-Miss And Skeleton

This algorithm fills the concavities of particles in an image without connecting the particles. It is found by rotating the configurations below to perform successive thickening until convergence.

$\begin{array}{ccc} 1 & 1 & \times\\ 1 & 0 & \times\\ 1 & \times & 0\end{array} ~~~~~ \mbox{ followed by } ~~~~~ \begin{array}{ccc} \times & 1 & \times\\ 1 & 0 & 0\\ \times & 1 & \times\end{array}$ See also

Function Syntax

This function returns outputBinaryImage.

// Function prototype
std::shared_ptr< iolink::ImageView >
convexHull2d( std::shared_ptr< iolink::ImageView > inputBinaryImage, std::shared_ptr< iolink::ImageView > outputBinaryImage = NULL );

This function returns outputBinaryImage.

// Function prototype.
convex_hull_2d( input_binary_image, output_binary_image = None )

This function returns outputBinaryImage.

// Function prototype.
public static IOLink.ImageView
ConvexHull2d( IOLink.ImageView inputBinaryImage, IOLink.ImageView outputBinaryImage = null );

Class Syntax

Parameters

Parameter Name		Description	Type	Supported Values	Default Value
	inputBinaryImage	The input binary image.	Image	Binary	nullptr
	outputBinaryImage	The output binary image. Its dimensions and type are forced to the same values as the input.	Image		nullptr

Parameter Name	Description	Type	Supported Values	Default Value
	input_binary_image	The input binary image.	image	Binary	None
	output_binary_image	The output binary image. Its dimensions and type are forced to the same values as the input.	image		None

Parameter Name	Description	Type	Supported Values	Default Value
	inputBinaryImage	The input binary image.	Image	Binary	null
	outputBinaryImage	The output binary image. Its dimensions and type are forced to the same values as the input.	Image		null

Object Examples

auto polystyrene_sep = readVipImage( std::string( IMAGEDEVDATA_IMAGES_FOLDER ) + "polystyrene_sep.vip" );

ConvexHull2d convexHull2dAlgo;
convexHull2dAlgo.setInputBinaryImage( polystyrene_sep );
convexHull2dAlgo.execute();

std::cout << "outputBinaryImage:" << convexHull2dAlgo.outputBinaryImage()->toString();

polystyrene_sep = imagedev.read_vip_image(imagedev_data.get_image_path("polystyrene_sep.vip"))

convex_hull_2d_algo = imagedev.ConvexHull2d()
convex_hull_2d_algo.input_binary_image = polystyrene_sep
convex_hull_2d_algo.execute()

print( "output_binary_image:", str( convex_hull_2d_algo.output_binary_image ) )

ImageView polystyrene_sep = Data.ReadVipImage( @"Data/images/polystyrene_sep.vip" );

ConvexHull2d convexHull2dAlgo = new ConvexHull2d
{
    inputBinaryImage = polystyrene_sep
};
convexHull2dAlgo.Execute();

Console.WriteLine( "outputBinaryImage:" + convexHull2dAlgo.outputBinaryImage.ToString() );

Function Examples

auto polystyrene_sep = readVipImage( std::string( IMAGEDEVDATA_IMAGES_FOLDER ) + "polystyrene_sep.vip" );

auto result = convexHull2d( polystyrene_sep );

std::cout << "outputBinaryImage:" << result->toString();

polystyrene_sep = imagedev.read_vip_image(imagedev_data.get_image_path("polystyrene_sep.vip"))

result = imagedev.convex_hull_2d( polystyrene_sep )

print( "output_binary_image:", str( result ) )

ImageView polystyrene_sep = Data.ReadVipImage( @"Data/images/polystyrene_sep.vip" );

IOLink.ImageView result = Processing.ConvexHull2d( polystyrene_sep );

Console.WriteLine( "outputBinaryImage:" + result.ToString() );

ConvexHull2d

- Function Syntax

+ Class Syntax

Parameters

Object Examples

Function Examples

Function Syntax

Class Syntax