Merge pull request #225 from HaripriyaB/image_metadata

Extract metadata of a given Image

Author: yashaswibiyahut

Python/Extract_Image_Metadata/README.md

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+# Extract Image Metadata
+The aim of the program is to generate the metatdata of an image given as input. Metadata is "data that provides information about other data". In other words, it is "data about data". 
+
+## Libraries Used:
+* Python [Pillow](https://pypi.org/project/Pillow/) - Python Imaging Library
+
+## Prerequisites:
+Install Pillow using the following command(pip/pip3):
+
+`>> pip3 install Pillow`
+
+## Usage:
+
+Sample images given along with the source code
+
+```
+Enter path to the image file: $(imagename)
+
+<If there exists Metadata of the input image, then it goes below>
+
+Sample:
+
+ExifVersion              : 0220
+ComponentsConfiguration  : 
+ShutterSpeedValue        : 5.643
+DateTimeOriginal         : 2020:08:13 14:04:39
+DateTimeDigitized        : 2020:08:13 14:04:39
+ApertureValue            : 1.69
+BrightnessValue          : 0.55
+ExposureBiasValue        : 0.0
+MaxApertureValue         : 1.69
+MeteringMode             : 2
+Flash                    : 0
+FocalLength              : 5.23
+ColorSpace               : 1
+ExifImageWidth           : 2888
+FocalLengthIn35mmFilm    : 24
+SceneCaptureType         : 0
+ExifImageHeight          : 1984
+Model                    : SM-A715F
+Orientation              : 1
+Make                     : samsung
+SensingMethod            : 1
+XResolution              : 72.0
+YResolution              : 72.0
+ExposureProgram          : 2
+GPSInfo                  : {29: '2020:08:13', 5: b'\x00', 6: 0.0}
+ISOSpeedRatings          : 250
+ResolutionUnit           : 2
+ExposureMode             : 0
+FlashPixVersion          : 0100
+WhiteBalance             : 0
+Software                 : A715FXXU2ATG1
+DateTime                 : 2020:08:13 14:05:15
+ExifOffset               : 202
+SubsecTime               : 701285
+SubsecTimeOriginal       : 701285
+SubsecTimeDigitized      : 701285
+ExposureTime             : 0.02
+FNumber                  : 1.8
+
+<If no metadata available, then it shows>
+
+No Metadata available for this image!
+
+```
+
+

Python/Extract_Image_Metadata/extract_image_metadata.py

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+from PIL import Image
+from PIL.ExifTags import TAGS
+
+# path to the image or video
+imagename = input("Enter path to the image file: ")
+
+# read the image data using PIL
+try:
+    image = Image.open(imagename)
+except:
+    print("Image not readable!")
+    exit()
+
+# extract EXIF data
+exifdata = image.getexif()
+
+# If no metadata is available for the image
+if len(exifdata) == 0:
+    print("No Metadata available for this image!")
+
+# iterating over all EXIF data fields
+for tag_id in exifdata:
+    # get the tag name, instead of human unreadable tag id
+    tag = TAGS.get(tag_id, tag_id)
+    data = exifdata.get(tag_id)
+    # decode bytes 
+    if isinstance(data, bytes):
+        data = data.decode()
+    print(f"{tag:25}: {data}")