Question

algorithm are all given. Plz show complete code

Project 1.2: You are to write a very simple method, it is called, PrettyPrint. PrettyPrint method is an independent program, its sole purpose is for us to visualized a given image. PrettyPrint will be used in many occasions, for grey-scale and binary images. / You should be able to write this in less than 2 hours Language: C++ Due date: C++ Soft copy: 2/07/2018 Wednesday before Midnight Due date: C++ Hard copy: 2/08/2018 Thursday in class I Input (argv1) a txt file representing an image (grey scale or binary) II. Output: the name of the output should have the tollowing format: fileName PP where fileName is the name of input file For example: a grey-scale image below on the left, the pretty print on the right 4 6 1 12 0 3 4 0 2 9 560207 1 10 99 4 5 6999 4 6 01 3 42 9 à 5 6 2 7 11 1 9 9 4569 9 III. Data structure: - numRows (int) - numCols (int) - minVal (int)

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Answer 1

I've provided the solution for:

Problem 1.1

Please create a file "input.txt" containing the input before running the program

import java.io.*;
import java.util.*;

public class HistogramPixel
{
  
int numRows;

int numCols;
  
int maxVal;

int minVal;

int hist[];
Scanner scanner;
  
HistogramPixel(String path) throws IOException //Constructor
{
//Read the data and initialize
scanner =new Scanner(new File(path));
numRows=scanner.nextInt();

numCols=scanner.nextInt();
  
minVal=scanner.nextInt();

maxVal=scanner.nextInt();

hist=new int[maxVal+1];  
}
  

public void computeHistogram () throws FileNotFoundException
{
int pixel;

//Read the rest of the file
while(scanner.hasNextInt())
{
pixel=scanner.nextInt();
hist[pixel]++;
}

//Write to a new output file

PrintWriter writer=new PrintWriter("output.txt");
writer.println(numRows+" "+numCols+" "+minVal+" "+maxVal);
for( int i=0;i <=maxVal;i++)
writer.println(i+" "+hist[i]);
writer.close();
}

public static void main(String args[])
{
  
try{
  
HistogramPixel obj=new HistogramPixel(args[0]); //arg[0] is the file name
  
obj.computeHistogram();
}

catch(Exception e)
{
System.out.println("FILE I/O EXCEPTION"+e);
}
}

}