我正在使用 PIL。如何将图片的EXIF数据变成字典？
您可以使用 PIL 图像的
_getexif()import PIL.Image
img = PIL.Image.open('img.jpg')
exif_data = img._getexif()
这将为您提供一个由 EXIF 数字标签索引的字典。如果您想要由实际 EXIF 标签名称字符串索引的字典，请尝试以下操作：
import PIL.ExifTags
exif = {
PIL.ExifTags.TAGS[k]: v
for k, v in img._getexif().items()
if k in PIL.ExifTags.TAGS
}
对于 Python3.x 和开始
Pillow==6.0.0Imagegetexif()<class 'PIL.Image.Exif'>None添加了，它返回一个getexif()实例。价值观可以 像字典一样被检索和设置。保存 JPEG、PNG 或 WEBP 时， 该实例可以作为Exif参数传递以包含任何更改 在输出图像中。exif
如上所述，您可以像常规字典一样迭代
ExifExifTags.TAGSfrom PIL import Image, ExifTags
img = Image.open("sample.jpg")
img_exif = img.getexif()
print(type(img_exif))
# <class 'PIL.Image.Exif'>
if img_exif is None:
print('Sorry, image has no exif data.')
else:
for key, val in img_exif.items():
if key in ExifTags.TAGS:
print(f'{ExifTags.TAGS[key]}:{val}')
# ExifVersion:b'0230'
# ...
# FocalLength:(2300, 100)
# ColorSpace:1
# ...
# Model:'X-T2'
# Make:'FUJIFILM'
# LensSpecification:(18.0, 55.0, 2.8, 4.0)
# ...
# DateTime:'2019:12:01 21:30:07'
# ...
使用 Python 3.8.8 和
Pillow==8.1.0您还可以使用ExifRead模块：
import exifread
# Open image file for reading (binary mode)
f = open(path_name, 'rb')
# Return Exif tags
tags = exifread.process_file(f)
我用这个：
import os,sys
from PIL import Image
from PIL.ExifTags import TAGS
for (k,v) in Image.open(sys.argv[1])._getexif().items():
print('%s = %s' % (TAGS.get(k), v))
或获取特定字段：
def get_field (exif,field) :
for (k,v) in exif.items():
if TAGS.get(k) == field:
return v
exif = image._getexif()
print get_field(exif,'ExposureTime')
import sys
import PIL
import PIL.Image as PILimage
from PIL import ImageDraw, ImageFont, ImageEnhance
from PIL.ExifTags import TAGS, GPSTAGS
class Worker(object):
def __init__(self, img):
self.img = img
self.exif_data = self.get_exif_data()
self.lat = self.get_lat()
self.lon = self.get_lon()
self.date =self.get_date_time()
super(Worker, self).__init__()
@staticmethod
def get_if_exist(data, key):
if key in data:
return data[key]
return None
@staticmethod
def convert_to_degress(value):
"""Helper function to convert the GPS coordinates
stored in the EXIF to degress in float format"""
d0 = value[0][0]
d1 = value[0][1]
d = float(d0) / float(d1)
m0 = value[1][0]
m1 = value[1][1]
m = float(m0) / float(m1)
s0 = value[2][0]
s1 = value[2][1]
s = float(s0) / float(s1)
return d + (m / 60.0) + (s / 3600.0)
def get_exif_data(self):
"""Returns a dictionary from the exif data of an PIL Image item. Also
converts the GPS Tags"""
exif_data = {}
info = self.img._getexif()
if info:
for tag, value in info.items():
decoded = TAGS.get(tag, tag)
if decoded == "GPSInfo":
gps_data = {}
for t in value:
sub_decoded = GPSTAGS.get(t, t)
gps_data[sub_decoded] = value[t]
exif_data[decoded] = gps_data
else:
exif_data[decoded] = value
return exif_data
def get_lat(self):
"""Returns the latitude and longitude, if available, from the
provided exif_data (obtained through get_exif_data above)"""
# print(exif_data)
if 'GPSInfo' in self.exif_data:
gps_info = self.exif_data["GPSInfo"]
gps_latitude = self.get_if_exist(gps_info, "GPSLatitude")
gps_latitude_ref = self.get_if_exist(gps_info, 'GPSLatitudeRef')
if gps_latitude and gps_latitude_ref:
lat = self.convert_to_degress(gps_latitude)
if gps_latitude_ref != "N":
lat = 0 - lat
lat = str(f"{lat:.{5}f}")
return lat
else:
return None
def get_lon(self):
"""Returns the latitude and longitude, if available, from the
provided exif_data (obtained through get_exif_data above)"""
# print(exif_data)
if 'GPSInfo' in self.exif_data:
gps_info = self.exif_data["GPSInfo"]
gps_longitude = self.get_if_exist(gps_info, 'GPSLongitude')
gps_longitude_ref = self.get_if_exist(gps_info, 'GPSLongitudeRef')
if gps_longitude and gps_longitude_ref:
lon = self.convert_to_degress(gps_longitude)
if gps_longitude_ref != "E":
lon = 0 - lon
lon = str(f"{lon:.{5}f}")
return lon
else:
return None
def get_date_time(self):
if 'DateTime' in self.exif_data:
date_and_time = self.exif_data['DateTime']
return date_and_time
if __name__ == '__main__':
try:
img = PILimage.open(sys.argv[1])
image = Worker(img)
lat = image.lat
lon = image.lon
date = image.date
print(date, lat, lon)
except Exception as e:
print(e)
我发现使用
._getexiffrom PIL import Image
def get_exif(path):
return Image.open(path).info['parsed_exif']
这将返回图像所有 EXIF 数据的字典。
注意：对于Python3.x，请使用Pillow而不是PIL
这是可能更容易阅读的内容。希望这对您有帮助。
from PIL import Image
from PIL import ExifTags
exifData = {}
img = Image.open(picture.jpg)
exifDataRaw = img._getexif()
for tag, value in exifDataRaw.items():
decodedTag = ExifTags.TAGS.get(tag, tag)
exifData[decodedTag] = value
从 PIL 8.2.0 版本开始，API 稍微改变了，将大部分标签更深地隐藏到了
Exif现代的做法：
from PIL import Image
from PIL.ExifTags import TAGS, GPSTAGS, IFD
from pillow_heif import register_heif_opener # HEIF support
import pillow_avif # AVIF support
register_heif_opener() # HEIF support
def print_exif(fname: str):
img = Image.open(fname)
exif = img.getexif()
print('>>>>>>>>>>>>>>>>>>', 'Base tags', '<<<<<<<<<<<<<<<<<<<<')
for k, v in exif.items():
tag = TAGS.get(k, k)
print(tag, v)
for ifd_id in IFD:
print('>>>>>>>>>', ifd_id.name, '<<<<<<<<<<')
try:
ifd = exif.get_ifd(ifd_id)
if ifd_id == IFD.GPSInfo:
resolve = GPSTAGS
else:
resolve = TAGS
for k, v in ifd.items():
tag = resolve.get(k, k)
print(tag, v)
except KeyError:
pass
现在
ExifExif 的 IFD GPSInfo这三行
from pillow_heif import register_heif_opener
import pillow_avif
register_heif_opener()
添加对现代流行格式 HEIF 和 AVIF 的支持，该格式在 Apple 设备上默认使用（带有 .HEIC 文件扩展名）。如果您不需要使用这些格式，则可以省略它们，该代码将适用于 PIL 支持的其余图像格式。
包装参考：
save()读取图像网址并获取标签
from PIL import Image
from urllib.request import urlopen
from PIL.ExifTags import TAGS
def get_exif(filename):
image = Image.open(filename)
image.verify()
return image._getexif()
def get_labeled_exif(exif):
labeled = {}
for (key, val) in exif.items():
labeled[TAGS.get(key)] = val
return labeled
my_image= urlopen(url)
exif = get_exif(my_image)
labeled = get_labeled_exif(exif)
print(labeled)
要获取 GPS 坐标，Jayson DeLancey 有出色的博客文章。
我通常使用pyexiv2在JPG文件中设置exif信息，但是当我在脚本中导入库时QGIS脚本崩溃。
我找到了使用库 exif 的解决方案：
https://pypi.org/project/exif/
它非常容易使用，而且使用Qgis我不会有任何问题。
在此代码中，我将 GPS 坐标插入到屏幕快照中：
from exif import Image
with open(file_name, 'rb') as image_file:
my_image = Image(image_file)
my_image.make = "Python"
my_image.gps_latitude_ref=exif_lat_ref
my_image.gps_latitude=exif_lat
my_image.gps_longitude_ref= exif_lon_ref
my_image.gps_longitude= exif_lon
with open(file_name, 'wb') as new_image_file:
new_image_file.write(my_image.get_file())