C语言编写简单图像程序-太极阴阳图

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>


typedef struct {
                size_t width;
                size_t height;
                unsigned char *data;
} Image;


static Image *image_new (size_t width,size_t height){
                Image *image;


                image = malloc (sizeof *image);
                image->width = width;
                image->height = height;
                image->data = malloc (width * height);


                return image;
}


static void image_free (Image *image){
                free (image->data);
                free (image);
}


    static void image_fill (Image *image,unsigned char value){
                memset (image->data, value, image->width * image->height);
}


/**
 * image_set_pixel:
 * Sets a pixel passed in signed (x, y) coordinates, where (0,0) is at
 * the center of the image.
 **/
static void image_set_pixel(Image *image,
                    &