Write a C++ program using dynamic 2D array to read an image of PGM P2 format, and produce its negative image and its 90-degree clockwise rotation. You must use dynamic two-dimensional arrays for storing the images. You need to properly allocate and de-allocate the array so the program does not contain any memory leaks. Valgrind checks should reveal no errors.Your program should take three command-line arguments as shown below:

image

The program image reads an existing PGM image, and outputs the image's two variations to files as given at command line (respectively). You need to provide error checking for command line arguments, and an error in the number of arguments should supersede any errors from files that cannot be found. You may assume the input file is a PGM P2 image in proper format without comments (lines starting with "#"), and the maximum grey value is 255.

Here is a sample run:

% ./image

Usage: image

% ./image pepper.pgm

Usage: image

% ./image xxx.pgm n.pgm f.pgm

Can not open xxx.pgm for input.

% ./image pepper.pgm pn.pgm pr.pgm

%