[Chapter 22] java.awt.image Reference

#

| Chapter 22 |

# 22. java.awt.image Reference

Contents:
ColorModel
CropImageFilter
DirectColorModel
FilteredImageSource
ImageConsumer
ImageFilter
ImageObserver
ImageProducer
IndexColorModel
MemoryImageSource
PixelGrabber
ReplicateScaleFilter
RGBImageFilter

# AreaAveragingScaleFilter

## Name

AreaAveragingScaleFilter

##

## Description

The `AreaAveragingScaleFilter` class scales an image using a simple smoothing algorithm.

## Class Definition

    public class java.awt.image.AreaAveragingScaleFilter
        extends java.awt.image.ReplicateScaleFilter {
      // Constructor
      public AreaAveragingScaleFilter (int width, int height);
      // Instance Methods
      public void setHints (int hints);
      public void setPixels (int x, int y, int w, int h, ColorModel model,
        byte[] pixels, int off, int scansize);
      public void setPixels (int x, int y, int w, int h, ColorModel model,
        int[] pixels, int off, int scansize);
    }

## Constructor

### AreaAveragingScaleFilter

#### public AreaAveragingScaleFilter (int width, int height)

Parameters

  width

    Width of scaled image.

  height

    Height of scaled image.

Description

  Constructs an `AverageScale` `Filter` that scales the original image to the specified size.

## Instance Methods

### setHints

#### public void setHints (int hints)

Parameters

  hints

    Flags indicating how data will be delivered.

Overrides

  `ImageFilter.setHints(int)`

Description

  Gives this filter hints about how data will be delivered.

### setPixels

#### public void setPixels (int x, int y, int w, int h, ColorModel model, byte[] pixels, int off, int scansize)

Parameters

  x

    x-coordinate of top-left corner of pixel data delivered with this method call.

  y

    y-coordinate of top-left corner of pixel data delivered with this method call.

  w

    Width of the rectangle of pixel data delivered with this method call.

  h

    Height of the rectangle of pixel data delivered with this method call.

  model

    Color model of image data.

  pixels

    Image data.

  off

    Offset from beginning of the pixels array.

  scansize

    Size of each line of data in pixels array.

Overrides

  `ReplicateScaleFilter.setPixels(int, int, int, int, ColorModel, byte[], int, int``)`

Description

  Receives a rectangle of image data from the `ImageProducer`; scales these pixels and delivers them to any `ImageConsumer`s.

#### public void setPixels (int x, int y, int w, int h, ColorModel model, int[] pixels, int off, int scansize)

Parameters

  x

    x-coordinate of top-left corner of pixel data delivered with this method call.

  y

    y-coordinate of top-left corner of pixel data delivered with this method call.

  w

    Width of the rectangle of pixel data delivered with this method call.

  h

    Height of the rectangle of pixel data delivered with this method call.

  model

    Color model of image data.

  pixels

    Image data.

  off

    Offset from beginning of the pixels array.

  scansize

    Size of each line of data in pixels array.

Overrides

  `ReplicateScaleFilter.setPixels(int, int, int, int, ColorModel, int[], int, int)`

Description

  Receives a rectangle of image data from the `ImageProducer`; scales these pixels and delivers them to any `ImageConsumer`s.

## See Also

ColorModel, ReplicateScaleFilter

WindowListener |  | ColorModel