Class ImageProcessing

java.lang.Object
  ImageProcessing

public class ImageProcessing
extends java.lang.Object

A collection of image processing utilities

Constructor Summary

ImageProcessing()

Method Summary

static int[][]	flipX(int[][] imageData) Flip the image relative to the X axis
static int[][]	flipY(int[][] imageData) Flip the image relative to the Y axis
static int[]	histogram(int[][] imageData) Returns a histogram of the given gray-scaled image.
static int[][]	invert(int[][] imageData) Inverts the gray levels of the image. 0 will turn to 255, 1 to 254 and so on...
static void	main(java.lang.String[] args)
static int[][]	rotate90CCW(int[][] imageData) Rotate the image 90 degrees counter clockwise
static int[][]	rotate90CW(int[][] imageData) Rotate the image 90 degrees clockwise
static int[][]	toBW(int[][] imageData, int threshold) Transforms the image into a black and white one

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageProcessing

public ImageProcessing()

Method Detail

flipX

public static int[][] flipX(int[][] imageData)

Flip the image relative to the X axis

Parameters:

imageData - - 2-dimensional array holding the image data

Returns:

a 2-dimensional array holding the image after the flip

flipY

public static int[][] flipY(int[][] imageData)

Flip the image relative to the Y axis

Parameters:

imageData - - 2-dimensional array holding the image data

Returns:

a 2-dimensional array holding the image after the flip

histogram

public static int[] histogram(int[][] imageData)

Returns a histogram of the given gray-scaled image.

Parameters:

imageData - - 2-dimensional array holding the image data

Returns:

an array of length 256 holding the image histogram

invert

public static int[][] invert(int[][] imageData)

Inverts the gray levels of the image. 0 will turn to 255, 1 to 254 and so on...

Parameters:

imageData - - 2-dimensional array holding the image data

Returns:

An inverted version of the image

rotate90CCW

public static int[][] rotate90CCW(int[][] imageData)

Rotate the image 90 degrees counter clockwise

Parameters:

imageData - - 2-dimensional array holding the image data

Returns:

the image rotated 90 degrees counter clockwise

rotate90CW

public static int[][] rotate90CW(int[][] imageData)

Rotate the image 90 degrees clockwise

Parameters:

imageData - - 2-dimensional array holding the image data

Returns:

the image rotated 90 degrees clockwise

toBW

public static int[][] toBW(int[][] imageData,
                           int threshold)

Transforms the image into a black and white one

Parameters:

imageData - - 2-dimensional array holding the image data

threshold - - a cutoff value underneath a pixel's becomes black (0), otherwise that pixel becomes white (255)

Returns:

A black and white version of the image

main

public static void main(java.lang.String[] args)