image editing

struct pixel_t {    byte red, green, blue;};struct image_t {    int width, height;    pixel_t *pixel_data;};image_t *load_image(const char *file){    image_t *image = new image_t;    //open the file, read in the info you need    //eg. width and height    image->pixel_data = new pixel_t[image->width*image->height];    //read the pixel data in from the file either directly into    //image->pixel_data (if the format permits), or by loading    //into a temporary buffer and copying into image->pixel_data    //pixel by pixel    return image;}void my_image_edit(image_t *image){    for(int i=0; i<(image->width*image->height); ++i) {        //do what you want with image->pixel_data    }}void save_image(const image_t *image, const char *file){    //open the file, write out the image    //in the format of the file}