ImageMagick 获取图片的exif信息

/* 图片路径 */
const char file_path[] = "D:/studyplace/workplace/cpp/resource/9.jpg";

const char result_path[] = "D:/studyplace/workplace/cpp/resource/tmp.jpg";
/* 获取图片的exif信息 */
int magick_exif()
{
    int rc = 0;
    MagickWand* magick_wand = NULL;
    char* exif_data;

    // 初始化ImageMagick库
    MagickWandGenesis();

    // 创建MagickWand对象
    magick_wand = NewMagickWand();

    // 读取图片文件
    if (MagickReadImage(magick_wand, file_path) == MagickFalse) {
        printf("Failed to read image\n");
        rc = -1;
        goto l_out;
    }

    // 获取exif信息中的Orientation
    exif_data = MagickGetImageProperty(magick_wand, "exif:Make");
    if (NULL == exif_data)
    {
        printf("there is no this info\n");
        rc = -1;
        goto l_e_free;
    }

    printf("exif:%s\n", exif_data);

    magick_wand = DestroyMagickWand(magick_wand);

l_out:
    MagickWandTerminus();
    return rc;

l_e_free:
    magick_wand = DestroyMagickWand(magick_wand);
    goto l_out;
}
int main() {
    magick_exif();
    return 0;
}