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java.lang.ObjectPixel
public class Pixel
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 | |
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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 | |
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double |
colorDistance(java.awt.Color testColor)
Method to get the distance between this pixel's color and the passed color |
static double |
colorDistance(java.awt.Color color1,
java.awt.Color color2)
Method to compute the color distances between two color objects |
static int |
correctLevel(double level)
Round and correct a color level to be within 0 and 255, according to the current wrapLevels setting. |
static int |
correctLevel(int level)
Correct a color level to be within 0 and 255, according to the current wrapLevels setting. |
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 |
java.awt.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 |
static boolean |
getWrapLevels()
Indicates whether levels outside the range 0-255 are clamped or wrapped around (saturating or modular arithmetic). |
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(java.awt.Color newColor)
Method to set the pixel color to the passed in color object. |
void |
setColor(int red,
int green,
int blue,
int alpha)
Method to set the pixel color to the passed in RGB and alpha components. |
void |
setColorFrom(Pixel otherPixel)
Sets the color of this pixel from the color value of otherPixel . |
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 |
static void |
setWrapLevels(boolean wrap)
Changes Pixel's behavior for dealing with levels outside the range 0-255. |
java.lang.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 |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public Pixel(DigitalPicture picture, int x, int y)
picture
- the picture that the pixel is inx
- the x location of the pixel in the picturey
- the y location of the pixel in the pictureMethod Detail |
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public static boolean getWrapLevels()
public static void setWrapLevels(boolean wrap)
wrap
- If true, values will be wrapped (modular arithmetic).
If false, values will be clamped (saturating arithmetic).public static int correctLevel(double level)
level
- The user-provided level.
public static int correctLevel(int level)
level
- The user-provided level.
public int getX()
public int getY()
public int getAlpha()
public int getRed()
public static int getRed(int value)
value
- the color value as an int
public int getGreen()
public static int getGreen(int value)
value
- the color value as an int
public int getBlue()
public static int getBlue(int value)
value
- the color value as an int
public java.awt.Color getColor()
public void setColor(java.awt.Color newColor)
newColor
- the new color to usepublic void setColor(int red, int green, int blue, int alpha)
red
- the new red component value to usegreen
- the new green component value to useblue
- the new blue component value to usealpha
- the new alpha component value to usepublic void updatePicture(int alpha, int red, int green, int blue)
alpha
- the alpha (transparency) at this pixelred
- the red value for the color at this pixelgreen
- the green value for the color at this pixelblue
- the blue value for the color at this pixelpublic void setRed(int value)
value
- the new value to usepublic void setGreen(int value)
value
- the value to usepublic void setBlue(int value)
value
- the new value to usepublic void setAlpha(int value)
value
- the new value to usepublic void setColorFrom(Pixel otherPixel)
otherPixel
.
otherPixel
- a pixel that may be in the same picture
or a different picture.
public double colorDistance(java.awt.Color testColor)
testColor
- the color to compare to
public static double colorDistance(java.awt.Color color1, java.awt.Color color2)
color1
- a color objectcolor2
- a color object
public double getAverage()
public java.lang.String toString()
toString
in class java.lang.Object
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