Python reads the picture EXIF information class library to introduce and use instances

First, I would like to introduce the Python Imaging Library, using the following methods:

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

The list returned is as follows:

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

59932 of them is a bunch of hexadecimal characters for some reason. In addition to PIL, there are many libraries available:

(link: http://sourceforge.net/projects/mmpython/files/)

(link: http://sourceforge.net/projects/exif-py/)

(link: http://sourceforge.net/projects/pyexif/)

A Blogger 's (link: http://fetidcascade.com/pyexif.html)

(link: http://tilloy.net/dev/pyexiv2/)

Next, exif.py is very simple to use: exif.py img_20121122_153514.jpg

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

As for Python Exif Parser, it hasn't been updated for a long time, and it's used in a similar way:

 

import exif

photo_path = "somePathtoaphoto.jpg"

data = exif.parse(photo_path)

Please do your own research for other libraries.