Class Pixel

java.lang.Object
Pixel
public class Pixel extends Object
Class that references a pixel in a picture. A pixel has an x and y location in a picture. A pixel knows how to get and set the red, green, blue, and alpha values in the picture. A pixel also knows how to get and set the color using a Color object. Copyright Georgia Institute of Technology 2004

  • Constructor Summary

    Constructors
    Constructor
    Description
    Pixel(DigitalPicture picture, int x, int y)
    A constructor that take the x and y location for the pixel and the picture the pixel is coming from

  • Method Summary

    Modifier and Type
    Method
    Description
    double
    colorDistance(Color testColor)
    Method to get the distance between this pixel's color and the passed color
    static double
    colorDistance(Color color1, Color color2)
    Method to compute the color distances between two color objects
    int
    getAlpha()
    Method to get the amount of alpha (transparency) at this pixel.
    double
    getAverage()
    Method to get the average of the colors of this pixel
    int
    getBlue()
    Method to get the amount of blue at this pixel.
    static int
    getBlue(int value)
    Method to get the blue value from a pixel represented as an int
    Color
    getColor()
    Method to get a color object that represents the color at this pixel.
    int
    getGreen()
    Method to get the amount of green at this pixel.
    static int
    getGreen(int value)
    Method to get the green value from a pixel represented as an int
    int
    getRed()
    Method to get the amount of red at this pixel.
    static int
    getRed(int value)
    Method to get the red value from a pixel represented as an int
    int
    getX()
    Method to get the x location of this pixel.
    int
    getY()
    Method to get the y location of this pixel.
    void
    setAlpha(int value)
    Method to set the alpha (transparency) to a new alpha value
    void
    setBlue(int value)
    Method to set the blue to a new blue value
    void
    setColor(Color newColor)
    Method to set the pixel color to the passed in color object.
    void
    setGreen(int value)
    Method to set the green to a new green value
    void
    setRed(int value)
    Method to set the red to a new red value
    String
    toString()
    Method to return a string with information about this pixel
    void
    updatePicture(int alpha, int red, int green, int blue)
    Method to update the picture based on the passed color values for this pixel

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Pixel

      public Pixel(DigitalPicture picture, int x, int y)
      A constructor that take the x and y location for the pixel and the picture the pixel is coming from
      Parameters:
      picture - the picture that the pixel is in
      x - the x location of the pixel in the picture
      y - the y location of the pixel in the picture

  • Method Details

    • getX

      public int getX()
      Method to get the x location of this pixel.
      Returns:
      the x location of the pixel in the picture

    • getY

      public int getY()
      Method to get the y location of this pixel.
      Returns:
      the y location of the pixel in the picture

    • getAlpha

      public int getAlpha()
      Method to get the amount of alpha (transparency) at this pixel. It will be from 0-255.
      Returns:
      the amount of alpha (transparency)

    • getRed

      public int getRed()
      Method to get the amount of red at this pixel. It will be from 0-255 with 0 being no red and 255 being as much red as you can have.
      Returns:
      the amount of red from 0 for none to 255 for max

    • getRed

      public static int getRed(int value)
      Method to get the red value from a pixel represented as an int
      Parameters:
      value - the color value as an int
      Returns:
      the amount of red

    • getGreen

      public int getGreen()
      Method to get the amount of green at this pixel. It will be from 0-255 with 0 being no green and 255 being as much green as you can have.
      Returns:
      the amount of green from 0 for none to 255 for max

    • getGreen

      public static int getGreen(int value)
      Method to get the green value from a pixel represented as an int
      Parameters:
      value - the color value as an int
      Returns:
      the amount of green

    • getBlue

      public int getBlue()
      Method to get the amount of blue at this pixel. It will be from 0-255 with 0 being no blue and 255 being as much blue as you can have.
      Returns:
      the amount of blue from 0 for none to 255 for max

    • getBlue

      public static int getBlue(int value)
      Method to get the blue value from a pixel represented as an int
      Parameters:
      value - the color value as an int
      Returns:
      the amount of blue

    • getColor

      public Color getColor()
      Method to get a color object that represents the color at this pixel.
      Returns:
      a color object that represents the pixel color

    • setColor

      public void setColor(Color newColor)
      Method to set the pixel color to the passed in color object.
      Parameters:
      newColor - the new color to use

    • updatePicture

      public void updatePicture(int alpha, int red, int green, int blue)
      Method to update the picture based on the passed color values for this pixel
      Parameters:
      alpha - the alpha (transparency) at this pixel
      red - the red value for the color at this pixel
      green - the green value for the color at this pixel
      blue - the blue value for the color at this pixel

    • setRed

      public void setRed(int value)
      Method to set the red to a new red value
      Parameters:
      value - the new value to use

    • setGreen

      public void setGreen(int value)
      Method to set the green to a new green value
      Parameters:
      value - the value to use

    • setBlue

      public void setBlue(int value)
      Method to set the blue to a new blue value
      Parameters:
      value - the new value to use

    • setAlpha

      public void setAlpha(int value)
      Method to set the alpha (transparency) to a new alpha value
      Parameters:
      value - the new value to use

    • colorDistance

      public double colorDistance(Color testColor)
      Method to get the distance between this pixel's color and the passed color
      Parameters:
      testColor - the color to compare to
      Returns:
      the distance between this pixel's color and the passed color

    • colorDistance

      public static double colorDistance(Color color1, Color color2)
      Method to compute the color distances between two color objects
      Parameters:
      color1 - a color object
      color2 - a color object
      Returns:
      the distance between the two colors

    • getAverage

      public double getAverage()
      Method to get the average of the colors of this pixel
      Returns:
      the average of the red, green, and blue values

    • toString

      public String toString()
      Method to return a string with information about this pixel
      Overrides:
      toString in class Object
      Returns:
      a string with information about this pixel