{

if (argc == 4)

{

std::string operation(argv[1]);

if(operation != "-i"){

std::cerr << "Usage: imageops <option> <Output Image Name>";

return 1;

}

Image l1;

l1<<(argv[2]);

!l1;

l1>>(argv[3]);

}else if(argc == 5&&*argv[1]=='-'){

char operation(*(argv[1]+1));//Extract the 2nd character of the second argument

switch(operation){

case 'a':

{

Image image_result;

image_result<<(argv[2]);

Image image_to_add;

image_to_add<<(argv[3]);

bool result = image_result + image_to_add;

if (result == false)

{

std::cerr << "Images must be same width and height!";

}

image_result>>(argv[4]);

break;

}

case 's':

{

Image image_result;

image_result<<(argv[2]);

Image image_to_subtract;

image_to_subtract<<(argv[3]);

bool result = image_result - image_to_subtract;

if (result == false)

{

std::cerr << "Images must be same width and height!";

}

image_result>>(argv[4]);

break;

}

case 'l':

{

Image image_result;

image_result<<(argv[2]);

Image image_mask;

image_mask<<(argv[3]);

bool result = image_result / image_mask;

if(result == false){

std::cerr << "Images must be same width and height!";

}

image_result>>(argv[4]);

break;

}

case 't':

// threshold();

{

Image image_result;

image_result<<(argv[2]);

float f=std::atof(argv[3]);

// u_char f = reinterpret_cast<unsigned char>(argv[3]);

image_result*f;

image_result>>(argv[4]);

break;

}

case 'g':

// filter();

{

Image image_result;

image_result << (argv[2]);

std::string file = std::string(argv[3]);

// u_char f = reinterpret_cast<unsigned char>(argv[3]);

image_result %file;

image_result >> (argv[4]);

break;

}

}

}else{

std::cerr << "Usage: imageops <option> <Output Image Name>";

return 1;

}

return 0;