Not all exif tags being read with getexif

[theahura]

What did you do?

See code below. I opened an image and parsed the exif tags using getexif()

What did you expect to happen?

I expected a complete set of exif tags to be presented and parsed.

What actually happened?

Some exif tags were parsed, but most were not.

What are your OS, Python and Pillow versions?

• OS: Ubuntu 20
• Python: 3.8.10
• Pillow: 9.0.0

import PIL
import PIL.Image
from PIL.ExifTags import TAGS

image = PIL.Image.open('./exif.jpg')
print([TAGS[k] for k in image.getexif()])

The code above outputs

['PrintImageMatching', 'ResolutionUnit', 'ExifOffset', 'Make', 'Model', 'Software', 'Orientation', 'DateTime', 'YCbCrPositioning', 'Copyright', 'XResolution', 'YResolution']

for the image:

When I look at the image in the default ubuntu image viewer, I can see far more tags.

If I downgrade PIL to 8.0.0 and run the exact same code, I get:

['ExifVersion', 'ComponentsConfiguration', 'CompressedBitsPerPixel', 'DateTimeOriginal', 'DateTimeDigitized', 'ShutterSpeedValue', 'ApertureValue', 'BrightnessValue', 'ExposureBiasValue', 'MaxApertureValue', 'MeteringMode', 'LightSource', 'Flash', 'FocalLength', 'ColorSpace', 'ExifImageWidth', 'ExifImageHeight', 'FocalPlaneXResolution', 'FocalPlaneYResolution', 'FocalPlaneResolutionUnit', 'SubjectDistanceRange', 'Make', 'Model', 'SensingMethod', 'Orientation', 'FileSource', 'ExposureTime', 'ExifInteroperabilityOffset', 'YCbCrPositioning', 'FNumber', 'SceneType', 'Copyright', 'XResolution', 'YResolution', 'ExposureProgram', 'PrintImageMatching', 'CustomRendered', 'ISOSpeedRatings', 'ResolutionUnit', 'ExposureMode', 'FlashPixVersion', 'WhiteBalance', 'Software', 'DateTime', 'SceneCaptureType', 'Sharpness', 'ExifOffset', 'MakerNote']

This is a much more complete set of exif tags.

[radarhere]

Hi. I think this is a duplicate of #5894. See #5894 (comment) for a full explanation.

[radarhere]

Testing, I think that print([TAGS[k] for k in image.getexif().get_ifd(0x8769)]) will provide you with your missing tags.

[theahura]

Thanks for the super fast response. I'm still not seeing all of the TAGS I would expect based on viewing the image in my default image viewer, in particular any of the GPS tags. Are those also separated somehow? How do I get everything possible?

[radarhere]

Well, I would say that GPS is also an IFD - https://www.awaresystems.be/imaging/tiff/tifftags/gpsifd.html, and that you should do

print([TAGS[k] for k in image.getexif().get_ifd(0x8825)])

except that when I try that with your image, it is empty.

If I run exiftool on your image for comparison, I'm also not seeing an GPS info.

ExifTool Version Number         : 12.30
File Name                       : exif.jpg
Directory                       : .
File Size                       : 30 KiB
File Modification Date/Time     : 2022:01:26 11:19:18+11:00
File Access Date/Time           : 2022:01:26 11:45:58+11:00
File Inode Change Date/Time     : 2022:01:26 11:45:58+11:00
File Permissions                : -rw-r--r--
File Type                       : JPEG
File Type Extension             : jpg
MIME Type                       : image/jpeg
JFIF Version                    : 1.01
Exif Byte Order                 : Little-endian (Intel, II)
Make                            : FUJIFILM
Camera Model Name               : A850
Orientation                     : Horizontal (normal)
X Resolution                    : 72
Y Resolution                    : 72
Resolution Unit                 : inches
Software                        : Digital Camera FUJIFILM A850 Ver1.01
Modify Date                     : 2009:02:18 11:52:58
Y Cb Cr Positioning             : Co-sited
Copyright                       : 
Exposure Time                   : 1/50
F Number                        : 2.8
Exposure Program                : Program AE
ISO                             : 400
Exif Version                    : 0220
Date/Time Original              : 2009:02:18 11:52:58
Create Date                     : 2009:02:18 11:52:58
Components Configuration        : Y, Cb, Cr, -
Compressed Bits Per Pixel       : 2
Shutter Speed Value             : 1/50
Aperture Value                  : 2.9
Brightness Value                : 5
Exposure Compensation           : 0
Max Aperture Value              : 2.8
Metering Mode                   : Multi-segment
Light Source                    : Unknown
Flash                           : Off, Did not fire
Focal Length                    : 6.1 mm
Version                         : 0130
Internal Serial Number          : AA-8M  2008:07:31 AD058UL80888
Quality                         : NORMAL
White Balance                   : Auto
Saturation                      : 0 (normal)
Fuji Flash Mode                 : Off
Flash Exposure Comp             : 0
Macro                           : On
Focus Mode                      : Auto
AF Mode                         : No
Focus Pixel                     : 1632 1224
Slow Sync                       : Off
Picture Mode                    : Auto
Exposure Count                  : 1
Auto Bracketing                 : Off
Sequence Number                 : 0
Color Mode                      : Standard
Blur Warning                    : None
Focus Warning                   : Good
Exposure Warning                : Good
Flashpix Version                : 0100
Color Space                     : sRGB
Exif Image Width                : 3264
Exif Image Height               : 2448
Interoperability Index          : R98 - DCF basic file (sRGB)
Interoperability Version        : 0100
Focal Plane X Resolution        : 6129
Focal Plane Y Resolution        : 6129
Focal Plane Resolution Unit     : cm
Sensing Method                  : One-chip color area
File Source                     : Digital Camera
Scene Type                      : Directly photographed
Custom Rendered                 : Normal
Exposure Mode                   : Auto
Scene Capture Type              : Standard
Sharpness                       : Normal
Subject Distance Range          : Unknown
PrintIM Version                 : 0250
Compression                     : JPEG (old-style)
Thumbnail Offset                : 1910
Thumbnail Length                : 5765
Image Width                     : 400
Image Height                    : 238
Encoding Process                : Progressive DCT, Huffman coding
Bits Per Sample                 : 8
Color Components                : 3
Y Cb Cr Sub Sampling            : YCbCr4:2:0 (2 2)
Aperture                        : 2.8
Image Size                      : 400x238
Megapixels                      : 0.095
Scale Factor To 35 mm Equivalent: 6.5
Shutter Speed                   : 1/50
Thumbnail Image                 : (Binary data 5765 bytes, use -b option to extract)
Circle Of Confusion             : 0.005 mm
Field Of View                   : 48.8 deg
Focal Length                    : 6.1 mm (35 mm equivalent: 39.6 mm)
Hyperfocal Distance             : 2.87 m
Light Value                     : 6.6

What program is making you think that there is GPS data in this image?

[theahura]

Interesting. We have an automated test suite that's been using this image as an example for months. One of the things the test checks is the presence (and value) of GPSLat/Long. The image normally lives on S3, but I downloaded it locally and reuploaded it here -- I wonder if that stripped the tag for some reason? 🤔

I notice that you use a different ifd tag for the GPSInfo -- is there a list of those tags somewhere in PIL such that I could loop through and accumulate all of the exif that's present?

[radarhere]

In my estimation, those are the important ones - EXIF and GPS.

Pillow also supports Interop (0xA005) and Makernote (0x927C but only for Fujifilm and Nintendo).

[theahura]

Perfect. Thanks a ton for the help!
(And really just awesome response time <3 )