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

Description

JAIMonochromeBitmapConverter()
Method Summary

Modifier and Type

Method

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 Details
- JAIMonochromeBitmapConverter
  
  public JAIMonochromeBitmapConverter()
Method Details
- 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

Class JAIMonochromeBitmapConverter

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Details

JAIMonochromeBitmapConverter

Method Details

setHint

convertToMonochrome