Python读取图片EXIF信息类库介绍

这篇文章主要介绍了Python读取图片EXIF信息类库介绍和使用实例,例如Python Imaging Library、EXIF.py等,需要的朋友可以参考下

首先要介绍的是 Python Imaging Library，使用方法如下：

复制代码

代码如下:

from PIL import Image from PIL.ExifTags import TAGS

def get_exif_data(fname):     """Get embedded EXIF data from image file."""     ret = {}     try:         img = Image.open(fname)         if hasattr( img, '_getexif' ):             exifinfo = img._getexif()             if exifinfo != None:                 for tag, value in exifinfo.items():                     decoded = TAGS.get(tag, tag)                     ret[decoded] = value     except IOError:         print 'IOERROR ' + fname     return ret

if __name__ == '__main__':     fileName = 'C:/Users/Leyond/Desktop/IMG_20121122_153514.jpg'     exif = get_exif_data(fileName)     print exif

返回的清单如下：

复制代码代码如下:

ExifVersion ComponentsConfiguration ExifImageWidth DateTimeOriginal DateTimeDigitized ExifInteroperabilityOffset FlashPixVersion MeteringMode LightSource Flash FocalLength 41986 ImageDescription Make Model Orientation YCbCrPositioning 41988 XResolution YResolution 59932 ExposureTime ExposureProgram ColorSpace 41990 ISOSpeedRatings ResolutionUnit 41987 FNumber Software DateTime ExifImageHeight ExifOffset

其中59932,是一大串十六进制的字符，不知为啥。除了PIL之外，还有许多类库可供使用：

Media Metadata for Python

EXIF.py

Python Exif Parser

A Blogger's Exif Parser

pyexiv2

接着看EXIF.PY，使用方法非常简单：exif.py IMG_20121122_153514.jpg

复制代码代码如下:

EXIF ColorSpace (Short): sRGB EXIF ComponentsConfiguration (Undefined): YCbCr EXIF DateTimeDigitized (ASCII): 2012:11:22 15:35:14 EXIF DateTimeOriginal (ASCII): 2012:11:22 15:35:14 EXIF DigitalZoomRatio (Ratio): 1 EXIF ExifImageLength (Long): 2560 EXIF ExifImageWidth (Long): 1920 EXIF ExifVersion (Undefined): 0220 EXIF ExposureBiasValue (Signed Ratio): 0 EXIF ExposureMode (Short): Auto Exposure EXIF ExposureProgram (Short): Portrait Mode EXIF ExposureTime (Ratio): 1/256 EXIF FNumber (Ratio): 14/5 EXIF Flash (Short): Flash did not fire EXIF FlashPixVersion (Undefined): 0100 EXIF FocalLength (Ratio): 35 EXIF ISOSpeedRatings (Short): 56 EXIF InteroperabilityOffset (Long): 4810 EXIF LightSource (Short): other light source EXIF MeteringMode (Short): CenterWeightedAverage EXIF Padding (Undefined): [] EXIF SceneCaptureType (Short): Portrait EXIF WhiteBalance (Short): Auto Image DateTime (ASCII): 2012:11:24 09:44:50 Image ExifOffset (Long): 2396 Image ImageDescription (ASCII): Image Make (ASCII): Image Model (ASCII): Image Orientation (Short): Horizontal (normal) Image Padding (Undefined): [] Image ResolutionUnit (Short): Pixels/Inch Image Software (ASCII): Microsoft Windows Photo Viewer 6.1.7600.16385 Image XResolution (Ratio): 72 Image YCbCrPositioning (Short): Co-sited Image YResolution (Ratio): 72 Thumbnail Compression (Short): JPEG (old-style) Thumbnail JPEGInterchangeFormat (Long): 4970 Thumbnail JPEGInterchangeFormatLength (Long): 3883 Thumbnail Orientation (Short): Horizontal (normal) Thumbnail ResolutionUnit (Short): Pixels/Inch Thumbnail XResolution (Ratio): 72 Thumbnail YCbCrPositioning (Short): Co-sited Thumbnail YResolution (Ratio): 72

至于Python Exif Parser，好像没更新很久了，使用方法也很类似：

复制代码代码如下:

import exif photo_path = "somePath\to\a\photo.jpg" data = exif.parse(photo_path)

其他类库请自行研究。