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/**
* this class <code> Picture </code> describes a RGB picture with dimensions width x height.
* Each pixels coulour is represented by an RGBColour
*
* @author AlgoDat
*
*/
import javax.imageio.*;
import java.io.IOException;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.*;
import java.io.FileInputStream;
import java.io.InputStream;
public class Picture {
/**
* A 2d array containing the colours of the individual pixels
*/
private RGBColor imageMatrix[][];
/**
* The width of the image in pixels
*/
private int width;
/**
* height of the image in pixels
*/
private int height;
/**
* intitialize a picture by creating a white picture
*/
public Picture(int width, int height){
this.height = height;
this.width = width;
createWhitePicture();
}
/**
* initialize a picture by opening given file
* @param picUrl path of *.bmp picture
*/
public Picture(String picUrl){
openAndSetPicture(picUrl);
}
/**
* intialize a picture by giving an image matrix
* @param imageMatrix two dimansionar RGBColor array
*/
public Picture(RGBColor imageMatrix[][]){
this.width = imageMatrix.length;
this.height = imageMatrix[0].length;
this.imageMatrix = imageMatrix;
}
/**
* turns this picture 90 degrees to the right
*
*/
public void rot90DegRight(){
}
/**
* turns this picture 180 degrees
*
*/
public void rot180Deg(){
//TODO
}
/**
* finds white pixels and approximates their new color by using the average of neighbour colors
*
*/
public void repairPicture(){
//TODO
}
}
}
/**
* Creates a completely white picture
*
*/
public void createWhitePicture(){
this.imageMatrix = new RGBColor[this.width][this.height];
for (int w=0; w< this.width; w++){
for(int h=0; h< this.height; h++){
//set this colors in picture
this.imageMatrix[w][h] = new RGBColor(255, 255, 255);
}
}
}
/**
* DO NOT CHANGE ANYTHING BELOW THIS LINE!
**/
// Getters
/**
*
* @return the width of the picture
*/
public int getWidth(){
return this.width;
}
/**
*
* @return the height of the picture
*/
public int getHeight(){
return this.height;
}
/**
*
* @return the the picture matrix
*/
public RGBColor[][] getImageMatrix(){
return this.imageMatrix;
}
/**
* reads an 24-bit(8,8,8) Bitmap and store it into picture-array
* @param picUrl The url to the pic
* @return true, if successful else false
*/
private boolean openAndSetPicture(String picUrl){
BufferedImage pic;
try {
InputStream iS= new FileInputStream(picUrl);
// get buffer of the picture
pic = ImageIO.read(iS);
// get additional picture informations
this.height = pic.getHeight();
this.width = pic.getWidth();
// store rgb colors in picture
this.imageMatrix = new RGBColor[this.width][this.height];
ColorModel cm= ColorModel.getRGBdefault();
for (int w=0; w< this.width; w++){
for(int h=0; h< this.height; h++){
// read out every RGBcolor
int pixel = pic.getRGB(w, h);
int rVal= cm.getRed(pixel);
int gVal= cm.getGreen(pixel);
int bVal= cm.getBlue(pixel);
//set this colors in picture
this.imageMatrix[w][h] = new RGBColor(rVal, gVal, bVal);
}
}
return true;
}catch (IOException e) {
e.printStackTrace();
}
return false;
}
public BufferedImage getImage(){
BufferedImage buf = new BufferedImage(this.width, this.height, BufferedImage.TYPE_INT_RGB);
for(int w=0; w<this.width; w++){
for(int h=0; h<this.height; h++){
int red= this.imageMatrix[w][h].getRed();
int blue= this.imageMatrix[w][h].getBlue();
int green= this.imageMatrix[w][h].getGreen();
int rgbVal= new Color(red, green, blue).getRGB();
buf.setRGB(w, h, rgbVal);
}
}
return buf;
}
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