com.recognition.software.jdeskew

Class ImageUtil

java.lang.Object

com.recognition.software.jdeskew.ImageUtil

public class ImageUtil
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ImageUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	isBlack(java.awt.image.BufferedImage image, int x, int y) Whether the pixel is black.
static boolean	isBlack(java.awt.image.BufferedImage image, int x, int y, int luminanceCutOff) Whether the pixel is black.
static java.awt.image.BufferedImage	rotate(java.awt.image.BufferedImage image, double angle, int cx, int cy) Rotates image.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageUtil

public ImageUtil()

Method Detail

isBlack

public static boolean isBlack(java.awt.image.BufferedImage image,
                              int x,
                              int y)

Whether the pixel is black.

Parameters:

image - source image

x - x-coordinate

y - y-coordinate

Returns:

true if pixel is black; false, otherwise

isBlack

public static boolean isBlack(java.awt.image.BufferedImage image,
                              int x,
                              int y,
                              int luminanceCutOff)

Whether the pixel is black.

Parameters:

image - source image

x - x-coordinate

y - y-coordinate

luminanceCutOff - luminance threshold

Returns:

true if pixel is black; false, otherwise

rotate

public static java.awt.image.BufferedImage rotate(java.awt.image.BufferedImage image,
                                                  double angle,
                                                  int cx,
                                                  int cy)

Rotates image.

Parameters:

image - source image

angle - by degrees

cx - x-coordinate of pivot point

cy - y-coordinate of pivot point

Returns:

rotated image