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Error: Error: must not create an existing file {"type":"CREATE_FILE","wid":"0.32199374149093263","path":"Main.java","file":{"path":"Main.java","content":{"asEncoding":{"base64":"import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import javax.imageio.ImageIO;
import java.io.IOException;
import java.io.File;
import java.awt.Color;
import java.io.FileNotFoundException;
import java.util.Scanner;
import java.io.PrintWriter;
import java.awt.Image;
import java.net.URL;
import java.io.BufferedWriter;
import java.io.FileWriter;

class Main {
  public static void main(String[] args) throws IOException {
    //get image from local file
    /*System.out.println("\nWelcome to Emile's image classifier. \nPlease input the image file path. (e.g. test.jpg)");
    BufferedImage image = ImageIO.read(new File(System.console().readLine()));*/

    //get image from URL
    System.out.println("\nPlease input the image URL:");

    BufferedImage image = null;
    try {
        URL url = new URL(System.console().readLine());
        System.out.println("\nLoading image...");
        image = ImageIO.read(url);
    } catch (IOException e) {
      e.printStackTrace();
    }

    //create model of current image
    int[][] currentValues = convertToAvgRGB(image);

    System.out.println("Comparing to image models...");

    //compare to learnt models
    double min = 1000000000;
    double distance;
    double coefficient;
    String result = "";
    String model_name = "";
    int[][] model_values = new int[3][900];
    String line;

    //get text file
    try {
      Scanner scanner = new Scanner(new File("models.txt"));

      while (scanner.hasNextLine()) {
        line = scanner.nextLine();
        //get model name
        model_name = line.substring(0, line.indexOf(";"));
        line = line.substring(line.indexOf(";") + 1, line.length());
        //get model values
        int quad = 0;
        while (line.length() > 3) {
          model_values[0][quad] = Integer.parseInt(line.substring(0, line.indexOf(",")));
          line = line.substring(line.indexOf(",") + 1, line.length());
          model_values[1][quad] = Integer.parseInt(line.substring(0, line.indexOf(",")));
          line = line.substring(line.indexOf(",") + 1, line.length());
          model_values[2][quad] = Integer.parseInt(line.substring(0, line.indexOf(";")));
          line = line.substring(line.indexOf(";") + 1, line.length());
          quad++;
        }

        //draw models
        //show(model_values);
    
        //calculate average distance
        distance = 0;
        for (int i = 0; i < model_values.length; i++) {
          coefficient = 10 * Math.sin(0.21 * i - 1.7) + (-0.00009 * Math.pow(i - 450, 2)) + 29;
          distance += coefficient / 3 * Math.sqrt(Math.pow(currentValues[0][i] - model_values[0][i], 2) + Math.pow(currentValues[1][i] - model_values[1][i], 2) + Math.pow(currentValues[2][i] - model_values[2][i], 2));
        }
        distance = distance / model_values.length;
        //System.out.println(model_name + " distance: " + distance);

        //update closest match
        if (min > distance) {
          result = model_name;
          min = distance;
        }
      }
      scanner.close();
    } catch (FileNotFoundException e) {
      e.printStackTrace();
    }

    //output result
    double confidence = 1 / ((min*0.001) + 0.1) * 10;
    confidence = (double) Math.round(confidence * 100) / 100; //round to two decimal places
    System.out.println("\nIt's a " + result + " (" + confidence + "% confidence).");

    //call train
    if (confidence != 100) {
      train(currentValues, model_name);
    }
  }

  private static int[][] convertToAvgRGB(BufferedImage image) {

    int width = image.getWidth();
    int height = image.getHeight();
    int[][] pixels = new int[height][width];
    int[][] result = new int[3][900];

    //2D array of hexidecimal colour values
    for (int row = 0; row < height; row++) {
        for (int col = 0; col < width; col++) {
          pixels[row][col] = image.getRGB(col, row);
        }
    }

    System.out.println("Scratching head...");

    //convert to average RBG values
    //red = 0, green = 1, blue = 2
    Color pixelColour;
    int quad = -1;
    int quad_height = height / 30;
    int quad_width = width / 30;

    for (int quad_y = 0; quad_y < 30; quad_y++) {
      for (int quad_x = 0; quad_x < 30; quad_x++) {
        //one quadrant
        quad++;
        for (int row = 0 + (quad_height * quad_y); row < quad_height + (quad_height * quad_y); row++) {
          for (int col = 0 + (quad_width * quad_x); col < quad_width + (quad_width * quad_x); col++) {
            pixelColour = new Color(pixels[row][col]);
            result[0][quad] = result[0][quad] + pixelColour.getRed();
            result[1][quad] = result[1][quad] + pixelColour.getGreen();
            result[2][quad] = result[2][quad] + pixelColour.getBlue();
          }
        }
      result[0][quad] = result[0][quad] / (quad_height * quad_width);
      result[1][quad] = result[1][quad] / (quad_height * quad_width);
      result[2][quad] = result[2][quad] / (quad_height * quad_width);
      //System.out.println((quad + 1) + ": " + result[0][quad] + "," + result[1][quad] + "," + result[2][quad]);
      //end one quadrant
      }
    }

    return result;
   }

  private static void train (int[][] currentValues, String model_name) {
    System.out.println("Is that correct? Type \"yes\" or provide the correct label.");
    String answer = System.console().readLine();
    String label = "";
    if (answer.equals("yes")) {
      label = model_name;
    } else {
      label = answer;
    }

    //write model txt file
    try {
      PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter("models.txt", true)));
      writer.print(label + ";");
      for (int i = 0; i < currentValues[0].length; i++) {
        writer.print(currentValues[0][i] + "," + currentValues[1][i] + "," + currentValues[2][i] + ";");
      }
      writer.println();
      writer.close();
    } catch (Exception e) {
      //handle exception
    }
  }

  private static void show (int[][] model_values) {
    StdDraw.setXscale(0.0, 30.0);
    StdDraw.setYscale(0.0, 30.0);
    StdDraw.enableDoubleBuffering();
    int quad = -1;
    double coefficient;
    double R, G, B;
    for (int quad_y = 29; quad_y >= 0; quad_y--) {
      for (int quad_x = 0; quad_x < 30; quad_x++) {
        quad++;
        coefficient = 10 * Math.sin(0.21 * quad - 1.7) + (-0.00009 * Math.pow(quad - 450, 2)) + 29;
        coefficient = coefficient / 39;
        R = coefficient * model_values[0][quad];
        G = coefficient * model_values[1][quad];
        B = coefficient * model_values[2][quad];
        StdDraw.setPenColor((int) R, (int) G, (int) B);
        StdDraw.filledSquare(quad_x + 0.5, quad_y + 0.5, 0.5);
      }
    }
    StdDraw.show(50);
  }
}
"},"asBuffer":null},"loaded":true}}

import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import javax.imageio.ImageIO;
import java.io.IOException;
import java.io.File;
import java.awt.Color;
import java.io.FileNotFoundException;
import java.util.Scanner;
import java.io.PrintWriter;
import java.awt.Image;
import java.net.URL;
import java.io.BufferedWriter;
import java.io.FileWriter;

class Main {
  public static void main(String[] args) throws IOException {
    //get image from local file
    /*System.out.println("\nWelcome to Emile's image classifier. \nPlease input the image file path. (e.g. test.jpg)");
    BufferedImage image = ImageIO.read(new File(System.console().readLine()));*/

    //get image from URL
    System.out.println("\nPlease input the image URL:");

    BufferedImage image = null;
    try {
        URL url = new URL(System.console().readLine());
        System.out.println("\nLoading image...");
        image = ImageIO.read(url);
    } catch (IOException e) {
      e.printStackTrace();
    }

    //create model of current image
    int[][] currentValues = convertToAvgRGB(image);

    System.out.println("Comparing to image models...");

    //compare to learnt models
    double min = 1000000000;
    double distance;
    double coefficient;
    String result = "";
    String model_name = "";
    int[][] model_values = new int[3][900];
    String line;

    //get text file
    try {
      Scanner scanner = new Scanner(new File("models.txt"));

      while (scanner.hasNextLine()) {
        line = scanner.nextLine();
        //get model name
        model_name = line.substring(0, line.indexOf(";"));
        line = line.substring(line.indexOf(";") + 1, line.length());
        //get model values
        int quad = 0;
        while (line.length() > 3) {
          model_values[0][quad] = Integer.parseInt(line.substring(0, line.indexOf(",")));
          line = line.substring(line.indexOf(",") + 1, line.length());
          model_values[1][quad] = Integer.parseInt(line.substring(0, line.indexOf(",")));
          line = line.substring(line.indexOf(",") + 1, line.length());
          model_values[2][quad] = Integer.parseInt(line.substring(0, line.indexOf(";")));
          line = line.substring(line.indexOf(";") + 1, line.length());
          quad++;
        }

        //draw models
        //show(model_values);
    
        //calculate average distance
        distance = 0;
        for (int i = 0; i < model_values.length; i++) {
          coefficient = 10 * Math.sin(0.21 * i - 1.7) + (-0.00009 * Math.pow(i - 450, 2)) + 29;
          distance += coefficient / 3 * Math.sqrt(Math.pow(currentValues[0][i] - model_values[0][i], 2) + Math.pow(currentValues[1][i] - model_values[1][i], 2) + Math.pow(currentValues[2][i] - model_values[2][i], 2));
        }
        distance = distance / model_values.length;
        //System.out.println(model_name + " distance: " + distance);

        //update closest match
        if (min > distance) {
          result = model_name;
          min = distance;
        }
      }
      scanner.close();
    } catch (FileNotFoundException e) {
      e.printStackTrace();
    }

    //output result
    double confidence = 1 / ((min*0.001) + 0.1) * 10;
    confidence = (double) Math.round(confidence * 100) / 100; //round to two decimal places
    System.out.println("\nIt's a " + result + " (" + confidence + "% confidence).");

    //call train
    if (confidence != 100) {
      train(currentValues, model_name);
    }
  }

  private static int[][] convertToAvgRGB(BufferedImage image) {

    int width = image.getWidth();
    int height = image.getHeight();
    int[][] pixels = new int[height][width];
    int[][] result = new int[3][900];

    //2D array of hexidecimal colour values
    for (int row = 0; row < height; row++) {
        for (int col = 0; col < width; col++) {
          pixels[row][col] = image.getRGB(col, row);
        }
    }

    System.out.println("Scratching head...");

    //convert to average RBG values
    //red = 0, green = 1, blue = 2
    Color pixelColour;
    int quad = -1;
    int quad_height = height / 30;
    int quad_width = width / 30;

    for (int quad_y = 0; quad_y < 30; quad_y++) {
      for (int quad_x = 0; quad_x < 30; quad_x++) {
        //one quadrant
        quad++;
        for (int row = 0 + (quad_height * quad_y); row < quad_height + (quad_height * quad_y); row++) {
          for (int col = 0 + (quad_width * quad_x); col < quad_width + (quad_width * quad_x); col++) {
            pixelColour = new Color(pixels[row][col]);
            result[0][quad] = result[0][quad] + pixelColour.getRed();
            result[1][quad] = result[1][quad] + pixelColour.getGreen();
            result[2][quad] = result[2][quad] + pixelColour.getBlue();
          }
        }
      result[0][quad] = result[0][quad] / (quad_height * quad_width);
      result[1][quad] = result[1][quad] / (quad_height * quad_width);
      result[2][quad] = result[2][quad] / (quad_height * quad_width);
      //System.out.println((quad + 1) + ": " + result[0][quad] + "," + result[1][quad] + "," + result[2][quad]);
      //end one quadrant
      }
    }

    return result;
   }

  private static void train (int[][] currentValues, String model_name) {
    System.out.println("Is that correct? Type \"yes\" or provide the correct label.");
    String answer = System.console().readLine();
    String label = "";
    if (answer.equals("yes")) {
      label = model_name;
    } else {
      label = answer;
    }

    //write model txt file
    try {
      PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter("models.txt", true)));
      writer.print(label + ";");
      for (int i = 0; i < currentValues[0].length; i++) {
        writer.print(currentValues[0][i] + "," + currentValues[1][i] + "," + currentValues[2][i] + ";");
      }
      writer.println();
      writer.close();
    } catch (Exception e) {
      //handle exception
    }
  }

  private static void show (int[][] model_values) {
    StdDraw.setXscale(0.0, 30.0);
    StdDraw.setYscale(0.0, 30.0);
    StdDraw.enableDoubleBuffering();
    int quad = -1;
    double coefficient;
    double R, G, B;
    for (int quad_y = 29; quad_y >= 0; quad_y--) {
      for (int quad_x = 0; quad_x < 30; quad_x++) {
        quad++;
        coefficient = 10 * Math.sin(0.21 * quad - 1.7) + (-0.00009 * Math.pow(quad - 450, 2)) + 29;
        coefficient = coefficient / 39;
        R = coefficient * model_values[0][quad];
        G = coefficient * model_values[1][quad];
        B = coefficient * model_values[2][quad];
        StdDraw.setPenColor((int) R, (int) G, (int) B);
        StdDraw.filledSquare(quad_x + 0.5, quad_y + 0.5, 0.5);
      }
    }
    StdDraw.show(50);
  }
}

Image Classifier

Image classifier that I've written from the ground up. It comprises of aspects from both an SVM and neural network structure.

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