ColorModel

Name

Description

The abstract ColorModel class defines the way a Java program represents colors. It provides methods for extracting different color components from a pixel.

Class Definition

public class java.awt.image.ColorModel extends java.lang.Object {
 // Variables protected int pixel_bits; // Constructors public ColorModel (int bits); // Class Methods public static ColorModel getRGBdefault(); // Instance Methods public void finalize(); public abstract int getAlpha (int pixel);
public abstract int getBlue (int pixel);
public abstract int getGreen (int pixel);
public int getPixelSize();
public abstract int getRed (int pixel);
public int getRGB (int pixel);
}

ProtectedVariables

pixel_bits

protected int pixel_bits

The pixel_bits variable saves the ColorModel's bits setting (the total number of bits per pixel).

Constructors

ColorModel

public ColorModel (int bits)

• Parameters
• • bits
  • The number of bits required per pixel using this model.
• Description
• Constructs a ColorModel object.

Class Methods

getRGBdefault

public static ColorModel getRGBdefault()

• Returns
• The default ColorModel format, which uses 8 bits for each of a pixel's color components: alpha (transparency), red, green, and blue.

Instance Methods

finalize

public void finalize()

• Overrides
• Object.finalize()
• Description
• Cleans up when this object is garbage collected.

getAlpha

public abstract int getAlpha (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current alpha setting of the pixel.

getBlue

public abstract int getBlue (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current blue setting of the pixel.

getGreen

public abstract int getGreen (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current green setting of the pixel.

getPixelSize

public int getPixelSize()

• Returns
• The current pixel size for the color model.

getRed

public abstract int getRed (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current red setting of the pixel.

getRGB

public int getRGB (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current combined red, green, and blue settings of the pixel.
• Description
• Gets the color of pixel in the default RGB color model.

See Also

DirectColorModel, IndexColorModel, Object