Package com.idrsolutions.image.scale

Class QualityScaler

java.lang.Object

com.idrsolutions.image.JDeliImage

com.idrsolutions.image.scale.QualityScaler

public class QualityScaler
extends com.idrsolutions.image.JDeliImage

Class uses mixed sinc filters to generate good quality scaling Example :

 BufferedImage thumbnailImage = QualityScaler.getScaledImage(sourceImage,128,128);
 

Constructor Summary

Constructors

Constructor	Description
QualityScaler()

Method Summary

Modifier and Type	Method	Description
static byte[]	getScaledBytes(byte[] src, int srcWidth, int srcHeight, int dstWidth, int dstHeight, int nComp)	Creates a scaled image in a byte[] from an input byte[] containing the input image data
static BufferedImage	getScaledImage(BufferedImage srcImage, int destWidth, int destHeight)	Scales an image to a different height

Methods inherited from class com.idrsolutions.image.JDeliImage

optimiseImage

Methods inherited from class java.lang.Object

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

Constructor Details

QualityScaler

public QualityScaler()

Method Details

getScaledImage

public static BufferedImage getScaledImage(BufferedImage srcImage,
 int destWidth,
 int destHeight)

Scales an image to a different height

Parameters:

srcImage - input image to scale

destWidth - width to scale image to

destHeight - height to scale image to

Returns:

BufferedImage of the newly scaled image

getScaledBytes

public static byte[] getScaledBytes(byte[] src,
 int srcWidth,
 int srcHeight,
 int dstWidth,
 int dstHeight,
 int nComp)

Creates a scaled image in a byte[] from an input byte[] containing the input image data

Parameters:

src - byte[] containing the original image data to be scaled

srcWidth - width of the original image

srcHeight - height of the original image

dstWidth - width to scale the image to

dstHeight - height to scale the image to

nComp - number of color components

Returns:

byte[] containing the scaled image data