jigl.image.ops.levelOps
Class LookupTable

java.lang.Object
  |
  +--jigl.image.SimpleOperator
        |
        +--jigl.image.ops.levelOps.LookupTable

All Implemented Interfaces:

Operator

public class LookupTable

extends SimpleOperator

Retrieve the lookup table of a grayscale image. Supports GrayImage, RealGrayImage.

For each current grayscale value in a image, the lookup table contains a corresponding grayscale values in the equalized image.

Field Summary

private int	clip_max table[max-1]
private int	clip_min table[0]
private int	max The length of lookup table
private int	min The start grayscale value in the histogram
private float[]	table A arry to store the lookup table

Constructor Summary

LookupTable(float[] data, int start, int min_val, int max_val)
Creates a LookupTable

Method Summary

protected Image	apply(GrayImage image) Applies lookup table to image and return the equalized image.
protected Image	apply(GrayImage image, ROI roi) Applies lookup table to image in a specific Region of Interest.
protected Image	apply(RealGrayImage gr) Applies lookup table to image and return the equalized image.
protected Image	apply(RealGrayImage image, ROI roi) Applies lookup table to image in a specific Region of Interest.

Methods inherited from class jigl.image.SimpleOperator

apply, apply, apply, apply, apply, apply, apply, apply, apply, apply

Methods inherited from class java.lang.Object

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

Field Detail

table

private float[] table

A arry to store the lookup table

min

private int min

The start grayscale value in the histogram

max

private int max

The length of lookup table

clip_min

private int clip_min

table[0]

clip_max

private int clip_max

table[max-1]

Constructor Detail

LookupTable

public LookupTable(float[] data,
                   int start,
                   int min_val,
                   int max_val)

Creates a LookupTable

Parameters:

data - an array containing the data to be loaded

start - the lowest value

min_val - value for any pixel lower than start

max_val - value for any pixel larger than the high

Method Detail

apply

protected Image apply(GrayImage image)

Applies lookup table to image and return the equalized image.

Overrides:

apply in class SimpleOperator

Parameters:

image - GrayImage to apply lookup table to.

Returns:

image

apply

protected Image apply(RealGrayImage gr)

Applies lookup table to image and return the equalized image.

Overrides:

apply in class SimpleOperator

Returns:

image

apply

protected Image apply(GrayImage image,
                      ROI roi)

Applies lookup table to image in a specific Region of Interest.

Overrides:

apply in class SimpleOperator

Parameters:

image - GrayImage to apply lookup table to.

roi - Region of Interest of image

Returns:

image

apply

protected Image apply(RealGrayImage image,
                      ROI roi)

Applies lookup table to image in a specific Region of Interest.

Overrides:

apply in class SimpleOperator

Parameters:

image - RealGrayImage to apply lookup table to.

roi - Region of Interest of image

Returns:

image