inra.ijpb.data.border

Interface BorderManager

All Known Implementing Classes:

ConstantBorder, MirroringBorder, PeriodicBorder, ReplicatedBorder

public interface BorderManager

Manages borders of an image, by providing methods for accessing values also for position out of image bounds.

 ImageProcessor image = ...
 BorderManager bm = new ReplicatedBorder(image);
 int value = bm.get(-5, -10);
 

Author:

David Legland

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	BorderManager.Type A set of pre-defined border managers stored in an enumeration.

Method Summary

Modifier and Type	Method and Description
default ij.process.ImageProcessor	addBorders(ij.process.ImageProcessor image, int left, int right, int top, int bottom) Adds the specified number of pixels around the input image, and returns the resulting image.
int	get(int x, int y) Returns the value corresponding to (x,y) position.
float	getf(int x, int y) Returns the floating-point value corresponding to (x,y) position.

Method Detail

addBorders

default ij.process.ImageProcessor addBorders(ij.process.ImageProcessor image,
                                             int left,
                                             int right,
                                             int top,
                                             int bottom)

Adds the specified number of pixels around the input image, and returns the resulting image.

Parameters:

image - the input image

left - the number of pixels to add to the left of the image

right - the number of pixels to add to the right of the image

top - the number of pixels to add on top of the image

bottom - the number of pixels to add at the bottom of the image

Returns:

a new image with extended borders

get

int get(int x,
        int y)

Returns the value corresponding to (x,y) position. Position can be outside original image bounds.

Parameters:

x - column index of the position

y - row index of the position

Returns:

border corrected value

getf

float getf(int x,
           int y)

Returns the floating-point value corresponding to (x,y) position. Position can be outside original image bounds.

Parameters:

x - column index of the position

y - row index of the position

Returns:

border corrected value