org.apache.fop.util.bitmap

Class JAIMonochromeBitmapConverter

java.lang.Object

org.apache.fop.util.bitmap.JAIMonochromeBitmapConverter

All Implemented Interfaces:

MonochromeBitmapConverter

public class JAIMonochromeBitmapConverter
extends Object
implements MonochromeBitmapConverter

Implementation of the MonochromeBitmapConverter which uses Java Advanced Imaging (JAI) to convert grayscale bitmaps to monochrome bitmaps. JAI provides better dithering options including error diffusion dithering.

If you call setHint("quality", "true") on the instance you can enabled error diffusion dithering which produces a nicer result but is also a lot slower.

Constructor Summary

Constructors

Constructor and Description
JAIMonochromeBitmapConverter()

Method Summary

Methods

Modifier and Type	Method and Description
RenderedImage	convertToMonochrome(BufferedImage img) Converts a bitmap image to a monochrome (1-bit) b/w bitmap image.
void	setHint(String name, String value) Sets a hint to the implementation

Methods inherited from class java.lang.Object

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

Constructor Detail

JAIMonochromeBitmapConverter

public JAIMonochromeBitmapConverter()

Method Detail

setHint

public void setHint(String name,
           String value)

Sets a hint to the implementation

Specified by:

setHint in interface MonochromeBitmapConverter

Parameters:

name - the name of the hint

value - the value

convertToMonochrome

public RenderedImage convertToMonochrome(BufferedImage img)

Converts a bitmap image to a monochrome (1-bit) b/w bitmap image.

Specified by:

convertToMonochrome in interface MonochromeBitmapConverter

Parameters:

img - the original image

Returns:

the converted monochrome image