Open main.c
14 FILE* kernel_file = fopen("./kernels/sharpen.txt", "r");
28 FILE* img = fopen("./images/person.ascii.pgm", "r");
In line 14 you put your kernel.
In line 28 you put you image.
To run the project you need gcc.
With gcc installed run:
gcc main.c -o exc
./exc
gcc main.c -o exc.exe
.\exc.exe