Class Picture

java.lang.Object
  SimplePicture
      Picture

All Implemented Interfaces:

DigitalPicture

public class Picture
extends SimplePicture

A class that represents a picture. This class inherits from SimplePicture and allows the student to add functionality to the Picture class. Copyright Georgia Institute of Technology 2004-2008

Author:

Barbara Ericson ericson@cc.gatech.edu

Constructor Summary

Picture()
Constructor that takes no arguments

Picture(BufferedImage image)
Constructor that takes a buffered image

Picture(int width, int height)
Constructor that takes the width and height

Picture(Picture copyPicture)
Constructor that takes a picture and creates a copy of that picture

Picture(String fileName)
Constructor that takes a file name and creates the picture

Method Summary

void	blueScreen(Picture target, int targetX, int targetY) Method to do chromakey assuming a blue background
void	chromakey(Picture target, Color bgColor, int threshold, int targetX, int targetY) Method to do chromakey using an input color for the background and a point for the upper left corner of where to copy
void	compose(Picture target, int targetX, int targetY) Method to compose (copy) this picture onto a target picture at a given point.
Picture	copy() A method create a copy of the current picture and return it
void	decreaseRed() Method to decrease the red by half in the current picture
void	decreaseRed(double amount) Method to decrease the red by an amount
Picture	flip() Method to flip a picture
void	grayscaleWithLuminance() Method to change the picture to gray scale with luminance
void	increaseRed() Method to increase the red in a picture.
void	negate() Method to negate a picture
Picture	oilPaint(int dist) Method to do an oil paint effect on a picture
static Picture	pickAndShow() Class method to let the user pick a file name and then create the picture and show it
Picture	scale(double factor) Method to scale the picture by a factor, and return the result
static Picture	showNamed(String fileName) Class method to create a picture object from the passed file name and then show it
String	toString() Method to return a string with information about this picture.

Methods inherited from class SimplePicture

addMessage, copyPicture, createGraphics, drawString, explore, getBasicPixel, getBufferedImage, getExtension, getFileName, getGraphics, getHeight, getImage, getMediaPath, getPictureFrame, getPictureWithHeight, getPictureWithWidth, getPixel, getPixels, getTitle, getTransformEnclosingRect, getWidth, hide, load, load, loadImage, loadOrFail, loadPictureAndShowIt, repaint, scale, setAllPixelsToAColor, setBasicPixel, setFileName, setMediaPath, setPictureFrame, setTitle, setVisible, show, write, writeOrFail

Methods inherited from class java.lang.Object

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

Constructor Detail

Picture

public Picture()

Constructor that takes no arguments

Picture

public Picture(String fileName)

Constructor that takes a file name and creates the picture

Parameters:

fileName - the name of the file to create the picture from

Picture

public Picture(int width,
               int height)

Constructor that takes the width and height

Parameters:

width - the width of the desired picture

height - the height of the desired picture

Picture

public Picture(Picture copyPicture)

Constructor that takes a picture and creates a copy of that picture

Picture

public Picture(BufferedImage image)

Constructor that takes a buffered image

Parameters:

image - the buffered image to use

Method Detail

toString

public String toString()

Method to return a string with information about this picture.

Overrides:

toString in class SimplePicture

Returns:

a string with information about the picture such as fileName, height and width.

pickAndShow

public static Picture pickAndShow()

Class method to let the user pick a file name and then create the picture and show it

Returns:

the picture object

showNamed

public static Picture showNamed(String fileName)

Class method to create a picture object from the passed file name and then show it

Parameters:

fileName - the name of the file that has a picture in it

Returns:

the picture object

copy

public Picture copy()

A method create a copy of the current picture and return it

Returns:

the copied picture

increaseRed

public void increaseRed()

Method to increase the red in a picture.

negate

public void negate()

Method to negate a picture

flip

public Picture flip()

Method to flip a picture

decreaseRed

public void decreaseRed()

Method to decrease the red by half in the current picture

decreaseRed

public void decreaseRed(double amount)

Method to decrease the red by an amount

Parameters:

amount - the amount to change the red by

compose

public void compose(Picture target,
                    int targetX,
                    int targetY)

Method to compose (copy) this picture onto a target picture at a given point.

Parameters:

target - the picture onto which we copy this picture

targetX - target X position to start at

targetY - target Y position to start at

scale

public Picture scale(double factor)

Method to scale the picture by a factor, and return the result

Parameters:

factor - the factor to scale by (1.0 stays the same, 0.5 decreases each side by 0.5, 2.0 doubles each side)

Returns:

the scaled picture

chromakey

public void chromakey(Picture target,
                      Color bgColor,
                      int threshold,
                      int targetX,
                      int targetY)

Method to do chromakey using an input color for the background and a point for the upper left corner of where to copy

Parameters:

target - the picture onto which we chromakey this picture

bgColor - the color to make transparent

threshold - within this distance from bgColor, make transparent

targetX - target X position to start at

targetY - target Y position to start at

blueScreen

public void blueScreen(Picture target,
                       int targetX,
                       int targetY)

Method to do chromakey assuming a blue background

Parameters:

target - the picture onto which we chromakey this picture

targetX - target X position to start at

targetY - target Y position to start at

grayscaleWithLuminance

public void grayscaleWithLuminance()

Method to change the picture to gray scale with luminance

oilPaint

public Picture oilPaint(int dist)

Method to do an oil paint effect on a picture

Parameters:

dist - the distance from the current pixel to use in the range

Returns:

the new picture