ImageReader&Printer(updating).java

import java.awt.Color;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
//import javax.swing.SwingUtilities;
import java.util.Scanner;

import com.googlecode.javacv.cpp.opencv_core.IplImage;
import com.googlecode.javacv.cpp.opencv_highgui.CvCapture;
import static com.googlecode.javacv.cpp.opencv_highgui.*;



public class Main extends JPanel{
  /////////////////Initializes variables needed to read the image//////////////////////////////
  BufferedImage img;
  static int width;
  static int height;
  boolean image = false;
  boolean video = false;
  Scanner sc = new Scanner(System.in);
  String url = sc.nextLine();
  public Main(){
    if(url.substring(url.length()-3).equals("jpg")){
      image = true;
    }
    else{
      video = true;
    }
    //setSize(5,5);
    setVisible(true);
    ///////////////Calls loadImage method with the image URL/////////////////////////////////
    if(image == true){
      loadImage(url);
    }
    else{
      System.out.println("yes");
      printVideo();
    }
  }




  /////////////////Attempts to read the image from the attached files and gets its width and height/////////////////////////
  public void loadImage(String URL){
    try{
      img = ImageIO.read(Main.class.getResource(URL));
      width = img.getWidth();
      height = img.getHeight();
      System.out.println("Image Read complete.");
    }
    catch(IOException e){
      e.printStackTrace();
    }
  }


  /*
  static final int PIXEL_SIZE = 20;
  static final int SCREEN_WIDTH = width;
  static final int SCREEN_HEIGHT = height;
  static final int ALL_PIXELS = (SCREEN_WIDTH*SCREEN_HEIGHT)/PIXEL_SIZE;
  */


  //////////////GraphicsEngine that calls the printImage with graphics capabilities///////////////////////////////////
  protected void paintComponent(Graphics g){
    super.paintComponent(g);
    //g.drawImage(img,0,0,width,height,this);
    //System.out.println("Print complete.");
    //draw(g,rgb,x,y);
    if(image == true){
      printImage(g);
    }  
    //draw(g,rgb,x,y);
    //System.out.println("Print complete.");
  }

  ////////////Initializes variables based on width and height of image/////////////////////////////////
  static final int PIXEL_SIZE = 1;
  static int SCREEN_WIDTH = width;
  static int SCREEN_HEIGHT = height;
  static int ALL_PIXELS = (SCREEN_WIDTH*SCREEN_HEIGHT)/PIXEL_SIZE;

  /*
   public void draw(Graphics g, int[] rgb1, int x1, int y1){
        //if the game is on draw these lines that make up the grid
    //super.draw(g);
    
      g.setColor(Color.RED);
      g.fillRect(x,y,10,10);
      System.out.println("YEEHAW");
      //g.drawLine(i*PIXEL_SIZE, 0, i*PIXEL_SIZE, SCREEN_HEIGHT);
      //g.drawLine(0,i*PIXEL_SIZE, SCREEN_WIDTH, i*PIXEL_SIZE);
    

  }
  */

  //////////////////Method to put RGB colors in an array//////////////////////////////////
  int[] rgb = new int[3];
  public int[] getActualRGB(int color){
    return new int[]{
      (color & 0xff0000) >> 16,
      (color & 0xff00) >> 8,
      color & 0xff
    };
  }
  /*
  public void draw1(Graphics g,int[] rgb,int row, int column){
    g.setColor(Color.red);
    int x = column;
    int y= row;
    g.fillRect(x,y,1,1);
  }
  */
  public void printVideo(){
    width = CV_CAP_PROP_FRAME_WIDTH;
    height = CV_CAP_PROP_FRAME_HEIGHT;
    CvCapture capture = cvCreateFileCapture(url);
    IplImage frame;
    cvNamedWindow("Video",CV_WINDOW_AUTOSIZE);
    for(;;){
      frame = cvQueryFrame(capture);
        if(frame == null){
          System.out.println("ERROR: NO Video File");
          break;
        }
      cvShowImage("Video",frame);
      char c = (char) cvWaitKey(30);

      if(c==27){
        break;
      }
    }
    cvReleaseCapture(capture);
    cvDestroyWindow("Video");
  }

  /////////////////Method that goes through every pixel (is able to get the average color is neccessary) and finds its color and prints out a sqaure based on the color///////////////////////////
  public void printImage(Graphics g){
    //EXTERNAL
    int SQUARELENGTH = 1;
    for (int row = 0; row < SCREEN_HEIGHT; row += SQUARELENGTH){
      // EVERY COLUMN
      for (int col = 0; col < SCREEN_WIDTH; col+=SQUARELENGTH){
        long average = 0;
        int denominator = 0;

        // INTERNAL
        for (int row1 = 0; row1 < SQUARELENGTH; row1++){
          for (int col1 = 0; col1 < SQUARELENGTH; col1++){


            
            try{
              if (!(row+row1>=SCREEN_HEIGHT) && !(col+col1>=SCREEN_WIDTH)){
              average+= img.getRGB( col+col1, row+row1);
              denominator+=1;
                }
            } catch (Exception e){
              System.out.println("ERROR:\n"+SCREEN_HEIGHT+"\n"+SCREEN_WIDTH+"\n"+(row+row1)+"\n" + (col+col1) + "\n=======");
            }
          }
        }

        
        rgb = getActualRGB((int)average);
        int grays = (rgb[0] + rgb[1] + rgb[2])/3;
        //This is in color ====== g.setColor(new Color(rgb[0],rgb[1],rgb[2]));
        g.setColor(new Color(grays,grays,grays));

        /*
        if(grays>100){
          g.setColor(Color.WHITE);
          System.out.print(" ");
          
        }
        else{
          g.setColor(Color.BLACK);
          System.out.print("■");
          
        }
        */
        g.fillRect(col,row,1,1);
        



        /*
        if (rgb[0] >= 125 && rgb[1] >= 125 && rgb[2] >= 1) System.out.print(" ");
        else {System.out.print("#");}
        // System.out.println("Average NOW: " + average);
        */
      }
      //System.out.println();
      
    }
  }

  ////////////Main method that adds all componenets to JFrame and prints out image///////////////////
  public static void main(String[] args){
    System.out.println("Image or Video URL: ");
    JFrame frm = new JFrame();
    frm.setVisible(true);
    frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frm.add(new Main());
    frm.setSize(width,height);
    SCREEN_WIDTH = width;
    SCREEN_HEIGHT = height;
    //System.out.println(SCREEN_WIDTH);
    //System.out.println(SCREEN_HEIGHT);
    ALL_PIXELS = (SCREEN_WIDTH*SCREEN_HEIGHT)/PIXEL_SIZE;
    
    
  }
}