Package boofcv.alg.misc

Class ImageCoverage

java.lang.Object

boofcv.alg.misc.ImageCoverage

public class ImageCoverage
extends Object

Computes the fraction / percent of an image which is covered by image features. Converage is computed by overlaying a grid on top of the image. The size of a cell depends on the maximum number of possible features which can be detected.

See Also:

• ConfigGridUniform
• ImageGrid

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	ImageCoverage.Cell	Specifies if each cell in the grid contains at least one feature

Field Summary

Fields

Modifier and Type	Field	Description
final ConfigGridUniform	configUniform	Configuration for overlaying a grid.
double	fraction	Fraction of the image covered by image features
final ImageGrid<ImageCoverage.Cell>	grid
int	targetCellPixels	Automatically computed.

Constructor Summary

Constructors

Constructor	Description
ImageCoverage()

Method Summary

Modifier and Type	Method	Description
void	markPixel(int pixelX, int pixelY)	Marks a pixel in the image as having contained a feature.
void	process()	Given the filled in grid it computes the fraction of cells with coverage
void	reset(int maxFeatures, int width, int height)	Resets and adjusts the grid size

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

configUniform

public final ConfigGridUniform configUniform

Configuration for overlaying a grid. You probably want to leave this as is

grid

public final ImageGrid<ImageCoverage.Cell> grid

fraction

public double fraction

Fraction of the image covered by image features

targetCellPixels

public int targetCellPixels

Automatically computed. The targeted cell size in pixels. See ImageGrid

Constructor Details

ImageCoverage

public ImageCoverage()

Method Details

reset

public void reset(int maxFeatures,
 int width,
 int height)

Resets and adjusts the grid size

Parameters:

maxFeatures - Maximum number of features which can be inside an image

width - image width

height - image height

markPixel

public void markPixel(int pixelX,
 int pixelY)

Marks a pixel in the image as having contained a feature. The pixel must lie inside the image. Outside pixels have undefined and likely very bad behavior.

process

public void process()

Given the filled in grid it computes the fraction of cells with coverage