用python找出那些被“标记”的照片

1210次阅读  |  发布于5年以前

源码传送门

环境准备

下面的两个第三方模块都可以直接通过pip快速安装,这里使用py36作为运行环境。

思路

  1. 遍历目录
  2. 拉取数据集合
  3. 遍历集合取得exif
  4. exif信息整理,并获取实体地址
  5. 拷贝文件到结果样本目录
  6. 生成json报告文件

基础知识

下面是现今相片中会存在与GPS相关的关键字,大牛亦可一比带过~ [参考]


    {
     "GPSVersionID": "GPS版本",
     "GPSLatitudeRef": "南北纬",
     "GPSLatitude": "纬度",
     "GPSLongitudeRef": "东西经",
     "GPSLongitude": "经度",
     "GPSAltitudeRef": "海拔参照值",
     "GPSAltitude": "海拔",
     "GPSTimeStamp": "GPS时间戳",
     "GPSSatellites": "测量的卫星",
     "GPSStatus": "接收器状态",
     "GPSMeasureMode": "测量模式",
     "GPSDOP": "测量精度",
     "GPSSpeedRef": "速度单位",
     "GPSSpeed": "GPS接收器速度",
     "GPSTrackRef": "移动方位参照",
     "GPSTrack": "移动方位",
     "GPSImgDirectionRef": "图像方位参照",
     "GPSImgDirection": "图像方位",
     "GPSMapDatum": "地理测量资料",
     "GPSDestLatitudeRef": "目标纬度参照",
     "GPSDestLatitude": "目标纬度",
     "GPSDestLongitudeRef": "目标经度参照",
     "GPSDestLongitude": "目标经度",
     "GPSDestBearingRef": "目标方位参照",
     "GPSDestBearing": "目标方位",
     "GPSDestDistanceRef": "目标距离参照",
     "GPSDestDistance": "目标距离",
     "GPSProcessingMethod": "GPS处理方法名",
     "GPSAreaInformation": "GPS区功能变数名",
     "GPSDateStamp": "GPS日期",
     "GPSDifferential": "GPS修正"
    }

初始化

考虑到exifread的模块中有大量的logging输出,这里将它的level级别调到最高。 然后下边的KEY是某站在高德地图API的时候遗留下来的 我也很尴尬。。就当福利了


    import os
    import time
    import json
    import random
    import logging
    import requests
    import exifread
    logging.basicConfig(level=logging.CRITICAL)
    KEY = "169d2dd7829fe45690fabec812d05bc3"

主逻辑函数


    def main():
     # 预设后缀列表
     types = ["bmp", "jpg", "tiff", "gif", "png"]
     #结果数据集合
     picex = []
     # 文件存储路径
     saves = "$" + input("| SavePath: ").strip()
     # 文件搜索路径 并遍历所有文件返回文件路径列表
     pools = jpgwalk(input("| FindPath: "), types)
     #存储目录
     savep = "%s/%s" % (os.getcwd().replace("\\", "/"), saves)
     if savep in pools:
     pools.remove(savep)
     # 遍历数据集并获取exif信息
     for path in pools:
     res = getEXIF(path)
     if res:
      picex.append(res)
     # 结果报告
     print("| Result %s" % len(picex))
     # 如果存在结果 保存结果到json并讲相关图片复制到该目录下
     if picex:
     #创建目录
     if not os.path.exists(saves):
      os.mkdir(saves)
     #生成一个4格缩进的json文件 
     with open("%s/%s.json" % (saves, saves), "wb") as f:
      f.write(json.dumps(picex, ensure_ascii=False, indent=4).encode("utf8"))
     #copy图像到该目录
     for item in picex:
      source_path = item["Filename"]
      with open("%s/%s" % (saves, source_path.split("/")[-1]), "wb") as f_in:
      with open(source_path, "rb") as f_out:
       f_in.write(f_out.read())

遍历方法

遍历指定及其所有下级目录,并返回全部的图片的路径集合,这里要注意的是每次扫描后的拷贝行为都会生成缓存,所以通过指定 $ 来避开。


    # 获取指导目录全部的图片路径
    def jpgwalk(path, types):
     _start = time.time()
     _pools = []
     # 遍历该目录 并判断files后缀 如符合规则则拼接路径
     for _root, _dirs, _files in os.walk(path):
     _pools.extend([_root.replace("\\", "/") + "/" +
       _item for _item in _files if _item.split(".")[-1].lower() in types and "$" not in _root])
     #报告消耗时间
     print("| Find %s \n| Time %.3fs" % (len(_pools), time.time() - _start))
     return _pools

经纬度格式化

度分秒转浮点,方便api调用查询,因为存在一些诡异的数据比如 1/0,所以默认返回0


    def cg(i):
     try:
     _ii = [float(eval(x)) for x in i[1:][:-1].split(', ')]
     _res = _ii[0] + _ii[1] / 60 + _ii[2] / 3600
     return _res
     except ZeroDivisionError:
     return 0

EXIF信息整理

考虑到大部分的设备还未开始支持朝向、速度、测量依据等关键字,这里暂时只使用比较常见的,如有需要的朋友可以自行添加。毕竟得到的信息越多对社工有更大的帮助。


    def getEXIF(filepath):
     #基础关键字
     _showlist = [
     'GPS GPSDOP',
     'GPS GPSMeasureMode',
     'GPS GPSAltitudeRef',
     'GPS GPSAltitude',
     'Image Software',
     'Image Model',
     'Image Make'
     ]
     #GPS关键字
     _XYlist = ["GPS GPSLatitude", "GPS GPSLongitude"]
     #时间关键字
     _TimeList = ["EXIF DateTimeOrigina", "Image DateTime", "GPS GPSDate"]
     #初始化结果字典
     _infos = {
     'Filename': filepath
     }
     with open(filepath, "rb") as _files:
     _tags = None
     # 尝试去的EXIF信息
     try:
      _tags = exifread.process_file(_files)
     except KeyError:
      return
     # 判断是否存在地理位置信息
     _tagkeys = _tags.keys()
     if _tags and len(set(_tagkeys) & set(_XYlist)) == 2 and cg(str(_tags["GPS GPSLongitude"])) != 0.0:
      for _item in sorted(_tagkeys):
      if _item in _showlist:
       _infos[_item.split()[-1]] = str(_tags[_item]).strip()
      # 经纬度取值
      _infos["GPS"] = (cg(str(_tags["GPS GPSLatitude"])) * float(1.0 if str(_tags.get("GPS GPSLatitudeRef", "N")) == "N" else -1.0),
        cg(str(_tags["GPS GPSLongitude"])) * float(1.0 if str(_tags.get("GPS GPSLongitudeRef", "E")) == "E" else -1.0))
      # 获取实体地址
      _infos["address"] = address(_infos["GPS"])
      # 获取照片海拔高度
      if "GPS GPSAltitudeRef" in _tagkeys:
      try:
       _infos["GPSAltitude"] = eval(_infos["GPSAltitude"])
      except ZeroDivisionError:
       _infos["GPSAltitude"] = 0
      _infos["GPSAltitude"] = "距%s%.2f米" % ("地面" if int(
       _infos["GPSAltitudeRef"]) == 1 else "海平面", _infos["GPSAltitude"])
      del _infos["GPSAltitudeRef"]
      # 获取可用时间
      _timeitem = list(set(_TimeList) & set(_tagkeys))
      if _timeitem:
      _infos["Dates"] = str(_tags[_timeitem[0]])
      return _infos

地址转换

一个简单的爬虫,调用高德地图api进行坐标转换,考虑到原本是跨域,这里添加基础的反防爬代码。这里有个小细节,海外的一律都取不到(包括台湾),可以通过更换googlemap的api来实现全球查询。


    def address(gps):
     global KEY
     try:
     # 随机UA
     _ulist = [
      "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/14.0.835.163 Safari/535.1",
      "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0) Gecko/20100101 Firefox/6.0",
      "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; 360SE)",
      "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_0) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11",
      "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50",
      "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.3; .NET4.0C; Tablet PC 2.0; .NET4.0E)",
      "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)",
      "Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20040913 Firefox/0.10",
      "Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; ja) Presto/2.10.289 Version/12.00",
      "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36"
     ]
     # 伪造header
     _header = {
      "User-Agent": random.choice(_ulist),
      "Accept": "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript, */*; q=0.01",
      "Accept-Encoding": "gzip, deflate, sdch",
      "Accept-Language": "zh-CN,zh;q=0.8",
      "Referer": "http://www.gpsspg.com",
     }
     _res = requests.get(
      "http://restapi.amap.com/v3/geocode/regeo?key={2}&s;=rsv3&location;={1},{0}&platform;=JS&logversion;=2.0&sdkversion;=1.3&appname;=http%3A%2F%2Fwww.gpsspg.com%2Fiframe%2Fmaps%2Famap_161128.htm%3Fmapi%3D3&csid;=945C5A2C-E67F-4362-B881-9608D9BC9913".format(gps[0], gps[1], KEY), headers=_header, timeout=(5, 5))
     _json = _res.json()
     # 判断是否取得数据
     if _json and _json["status"] == "1" and _json["info"] == "OK":
      # 返回对应地址
      return _json.get("regeocode").get("formatted_address")
     except Exception as e:
     pass

实例

运行该代码 然后输入保存文件夹名和扫描位置即可

这边可以看到8019张中有396张存在有效的地理位置,打码的地方就不解释了,各位老司机~后期打算加入图像识别,和相似度识别。

下面给大家分享小编收集整理的python专题知识:

python基本语法

python多线程学习教程

python排序算法大全

以上所述是小编给大家介绍的用python找出那些被"标记"的照片,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持!

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