net.sourceforge.vietocr

Class ImageHelper

java.lang.Object

net.sourceforge.vietocr.ImageHelper

public class ImageHelper
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ImageHelper()

Method Summary

Methods

Modifier and Type	Method and Description
static java.awt.image.BufferedImage	convertImage2Binary(java.awt.image.BufferedImage image) A simple method to convert an image to binary or B/W image.
static java.awt.Image	getClipboardImage() Gets an image from Clipboard.
static java.awt.image.BufferedImage	getScaledInstance(java.awt.image.BufferedImage image, int targetWidth, int targetHeight) Convenience method that returns a scaled instance of the provided BufferedImage.
static java.awt.image.BufferedImage	getSubImage(java.awt.image.BufferedImage image, int x, int y, int width, int height) A replacement for the standard BufferedImage.getSubimage method.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageHelper

public ImageHelper()

Method Detail

getScaledInstance

public static java.awt.image.BufferedImage getScaledInstance(java.awt.image.BufferedImage image,
                                             int targetWidth,
                                             int targetHeight)

Convenience method that returns a scaled instance of the provided BufferedImage.

Parameters:

image - the original image to be scaled

targetWidth - the desired width of the scaled instance, in pixels

targetHeight - the desired height of the scaled instance, in pixels

Returns:

a scaled version of the original BufferedImage

getSubImage

public static java.awt.image.BufferedImage getSubImage(java.awt.image.BufferedImage image,
                                       int x,
                                       int y,
                                       int width,
                                       int height)

A replacement for the standard BufferedImage.getSubimage method.

Parameters:

image -

x - the X coordinate of the upper-left corner of the specified rectangular region

y - the Y coordinate of the upper-left corner of the specified rectangular region

width - the width of the specified rectangular region

height - the height of the specified rectangular region

Returns:

a BufferedImage that is the subimage of image.

convertImage2Binary

public static java.awt.image.BufferedImage convertImage2Binary(java.awt.image.BufferedImage image)

A simple method to convert an image to binary or B/W image.

Parameters:

image - input image

Returns:

a monochome image

getClipboardImage

public static java.awt.Image getClipboardImage()

Gets an image from Clipboard.

Returns:

image