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/ 3 Years ago, sun, may 23, 2021, 12:34:20
Just looked this up. Figure I'd share it here for future reference.
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Answers
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Install exiftool:
sudo apt-get install libimage-exiftool-perl
To read photo metadata:
exiftool /tmp/my_photo.jpg
To erase photo metadata:
exiftool -all= /tmp/my_photo.jpg
Before:
ExifTool Version Number : 8.60
File Name : my_photo.jpg
Directory : /tmp
File Size : 3.0 MB
File Modification Date/Time : 2013:02:24 12:08:10-08:00
File Permissions : rw-rw-r--
File Type : JPEG
MIME Type : image/jpeg
Exif Byte Order : Big-endian (Motorola, MM)
Orientation : Unknown (0)
Y Cb Cr Positioning : Centered
X Resolution : 72
Y Resolution : 72
Resolution Unit : inches
Modify Date : 2013:02:24 11:25:27
Make : Samsung
Camera Model Name : Galaxy Nexus
Exif Version : 0220
Flashpix Version :
Color Space : sRGB
Components Configuration : Y, Cb, Cr, -
Compressed Bits Per Pixel : 0
Exif Image Width : 1944
Exif Image Height : 2592
Date/Time Original : 2013:02:24 11:25:27
Create Date : 2013:02:24 11:25:27
Exposure Time : 1/354
F Number : 2.8
Exposure Program : Aperture-priority AE
ISO : 50, 0, 0
Shutter Speed Value : 1/353
Aperture Value : 2.6
Brightness Value : 0
Exposure Compensation : 0
Max Aperture Value : 2.6
Subject Distance : 0 m
Metering Mode : Multi-spot
Light Source : Daylight
Flash : No Flash
Focal Length : 3.4 mm
Flash Energy : 0
Exposure Index : undef
Sensing Method : One-chip color area
Scene Type : Directly photographed
Custom Rendered : Custom
Exposure Mode : Auto
White Balance : Auto
Digital Zoom Ratio : 1
Scene Capture Type : Standard
Contrast : Normal
Saturation : Normal
Sharpness : Normal
Subject Distance Range : Unknown
Image Unique ID : OAEL01
GPS Time Stamp : 19:25:27
GPS Date Stamp : 2013:02:24
Compression : JPEG (old-style)
Thumbnail Offset : 2143
Thumbnail Length : 10941
Image Width : 1944
Image Height : 2592
Encoding Process : Baseline DCT, Huffman coding
Bits Per Sample : 8
Color Components : 3
Y Cb Cr Sub Sampling : YCbCr4:2:0 (2 2)
Aperture : 2.8
GPS Date/Time : 2013:02:24 19:25:27Z
Image Size : 1944x2592
Shutter Speed : 1/354
Thumbnail Image : (Binary data 10941 bytes, use -b option to extract)
Focal Length : 3.4 mm
Light Value : 12.4
After:
ExifTool Version Number : 8.60
File Name : my_photo.jpg
Directory : /tmp
File Size : 2.9 MB
File Modification Date/Time : 2013:02:24 12:21:39-08:00
File Permissions : rw-rw-r--
File Type : JPEG
MIME Type : image/jpeg
Image Width : 1944
Image Height : 2592
Encoding Process : Baseline DCT, Huffman coding
Bits Per Sample : 8
Color Components : 3
Y Cb Cr Sub Sampling : YCbCr4:2:0 (2 2)
Image Size : 1944x2592
References:
- http://www.mattcutts.com/blog/howto-strip-jpeg-metadata/
- http://hacktux.com/read/remove/exif
- http://www.sno.phy.queensu.ca/~phil/exiftool/exiftool_pod.html
[#32502] Sunday, May 23, 2021, 3 Years
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soahan
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