脱敏小软件

通过修改图像文件的Exif信息中经纬度信息，使图像数据脱敏

后续更新具体设计和思路

 项目地址：https://gitee.com/SmallUniv/ExifTool

/*PropertyItem 中对应属性
    参考资料：https://docs.microsoft.com/en-us/dotnet/api/system.drawing.imaging.propertyitem.id?redirectedfrom=MSDN&view=netframework-4.7.2#System_Drawing_Imaging_PropertyItem_Id
     * ID    Property tag
       0x0000    PropertyTagGpsVer
       0x0001    PropertyTagGpsLatitudeRef
       0x0002    PropertyTagGpsLatitude
       0x0003    PropertyTagGpsLongitudeRef
       0x0004    PropertyTagGpsLongitude
       0x0005    PropertyTagGpsAltitudeRef
       0x0006    PropertyTagGpsAltitude
     */

   /// <summary>
    /// 删除图像的经纬度信息
    /// </summary>
    public class ExifUtil
    {
        /// <summary>
        /// 删除图像的经纬度信息，覆盖原图像
        /// </summary>
        /// <param name="IN_File">文件路径</param>
        public void DeleteCoord(string IN_File)
        {
            using (Stream ms = new MemoryStream(File.ReadAllBytes(IN_File)))
            {
                using (Image image = Image.FromStream(ms))
                {
                    DeleteCoordInfo(image);
                    image.Save(IN_File);
                }
            }
        }

        
        /// <summary>
        /// 删除图像的经纬度信息,并另存为
        /// </summary>
        /// <param name="IN_File">文件路径</param>
        public void DeleteCoord(string IN_File, string IN_Save)
        {
            using (Stream ms = new MemoryStream(File.ReadAllBytes(IN_File)))
            {
                using (Image image = Image.FromStream(ms))
                {
                    DeleteCoordInfo(image);
                    image.Save(IN_Save);
                }
            }
        }
        /// <summary>
        /// 删除图像的经纬度信息
        /// </summary>
        /// <param name="image"></param>
        public static void DeleteCoordInfo(Image image)
        {
            int[] ids = new[] { 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006 };
            foreach (int id in ids)
            {
                if (image.PropertyIdList.Contains(id))
                {
                    image.RemovePropertyItem(id);
                }
            }
        }
    }