Find missing files but with same file name

[Ralf Mardorf]

On Thu, 19 May 2016 15:47:45 +0200, Ralf Mardorf wrote:
>You could use exiftools and search for something special in the
>pictures meta data.
>
>You might remember geotagging or cameras that you used.
>
>To find duplicated file names you could use fslint.
>
>
>sudo apt-get update && sudo apt-get install fslint
>libimage-exiftool-perl
>
>
>
>$ /usr/share/fslint/fslint/findsn ~/Desktop/
>-rw-r--r-- 1 rocketmouse rocketmouse 5 May 19 15:26 1/1
>-rw-r--r-- 1 rocketmouse rocketmouse 5 May 19 15:27 2/1
>-rw-r--r-- 1 rocketmouse rocketmouse 0 May 19 14:56
>1/pattern_structure-1.jpg -rw-r--r-- 1 rocketmouse rocketmouse 5 May
>19 15:36 2/pattern_structure-1.jpg -rw-r--r-- 1 rocketmouse
>rocketmouse 0 May 19 15:42 pattern_structure-1.jpg
>
>
>
>Use exiftools to compare the content of files.
>
>
>$ exiftool ~/Desktop/pattern_structure-1.jpg | grep "Lens Model"
>$
>
>
>
>$ exiftool pattern_structure-1.jpg | grep "Lens Model"
>Lens Model                      : iPad 2 back camera 2.03mm f/2.4
>
>
>
>$ exiftool ~/Desktop/pattern_structure-1.jpg
>ExifTool Version Number         : 10.15
>File Name                       : pattern_structure-1.jpg
>Directory                       : /home/rocketmouse/Desktop
>File Size                       : 0 bytes
>File Modification Date/Time     : 2016:05:19 14:56:49+02:00
>File Access Date/Time           : 2016:05:19 14:56:49+02:00
>File Inode Change Date/Time     : 2016:05:19 14:56:49+02:00
>File Permissions                : rw-r--r--
>Error                           : File format error
>
>
>
>$ exiftool pattern_structure-1.jpg
>ExifTool Version Number         : 10.15
>File Name                       : pattern_structure-1.jpg
>Directory                       : .
>File Size                       : 124 kB
>File Modification Date/Time     : 2015:04:29 21:48:43+02:00
>File Access Date/Time           : 2016:05:06 19:35:22+02:00
>File Inode Change Date/Time     : 2016:04:06 15:30:38+02:00
>File Permissions                : rw-r--r--
>File Type                       : JPEG
>File Type Extension             : jpg
>MIME Type                       : image/jpeg
>Exif Byte Order                 : Little-endian (Intel, II)
>Make                            : Apple
>Camera Model Name               : iPad 2
>X Resolution                    : 72
>Y Resolution                    : 72
>Resolution Unit                 : inches
>Software                        : 8.3
>Modify Date                     : 2015:04:29 14:35:07
>Y Cb Cr Positioning             : Centered
>Exposure Time                   : 1/5348
>F Number                        : 2.4
>Exposure Program                : Program AE
>ISO                             : 40
>Exif Version                    : 0221
>Date/Time Original              : 2015:04:29 14:35:07
>Create Date                     : 2015:04:29 14:35:07
>Components Configuration        : Y, Cb, Cr, -
>Shutter Speed Value             : 1/5348
>Aperture Value                  : 2.4
>Brightness Value                : 11.70565553
>Exposure Compensation           : 0
>Metering Mode                   : Multi-segment
>Flash                           : No flash function
>Focal Length                    : 2.0 mm
>Run Time Scale                  : 1000000000
>Run Time Value                  : 56489914011125
>Run Time Epoch                  : 0
>Run Time Flags                  : Valid
>Sub Sec Time Original           : 298
>Sub Sec Time Digitized          : 298
>Flashpix Version                : 0100
>Color Space                     : sRGB
>Exif Image Width                : 720
>Exif Image Height               : 960
>Sensing Method                  : One-chip color area
>Scene Type                      : Directly photographed
>Exposure Mode                   : Auto
>White Balance                   : Auto
>Focal Length In 35mm Format     : 44 mm
>Scene Capture Type              : Standard
>Lens Info                       : 2.03mm f/2.4
>Lens Make                       : Apple
>Lens Model                      : iPad 2 back camera 2.03mm f/2.4
>Compression                     : JPEG (old-style)
>Thumbnail Offset                : 1054
>Thumbnail Length                : 4327
>Image Width                     : 720
>Image Height                    : 960
>Encoding Process                : Baseline DCT, Huffman coding
>Bits Per Sample                 : 8
>Color Components                : 3
>Y Cb Cr Sub Sampling            : YCbCr4:2:0 (2 2)
>Aperture                        : 2.4
>Image Size                      : 720x960
>Megapixels                      : 0.691
>Run Time Since Power Up         : 15:41:29
>Scale Factor To 35 mm Equivalent: 21.7
>Shutter Speed                   : 1/5348
>Create Date                     : 2015:04:29 14:35:07.298
>Date/Time Original              : 2015:04:29 14:35:07.298
>Thumbnail Image                 : (Binary data 4327 bytes, use -b
>option to extract) Circle Of Confusion             : 0.001 mm
>Field Of View                   : 44.5 deg
>Focal Length                    : 2.0 mm (35 mm equivalent: 44.0 mm)
>Hyperfocal Distance             : 1.24 m
>Light Value                     : 16.2
>
>
>
>On Wed, 18 May 2016 23:48:53 -1000, Joel Roth wrote
>>For this type of job, I would typically write a perl script,
>>[snip]
>>pc050049.jpg:
>> - /home/rikona/photos/2012-5-16
>>   size: 25683934
>>   md5: adfec80203fedcab
>> - /mnt/backup1/dvd12/photos/2003-4-8
>>   size: 18403456
>>   md5: 8938475deadbeef8383894
>>[snip]  
>
>Why not simply using diff for this task?
>
>$ diff pattern_structure-1.jpg ~/Desktop/1/pattern_structure-1.jpg 
>Binary files pattern_structure-1.jpg
>and /home/rocketmouse/Desktop/1/pattern_structure-1.jpg differ

"diff" in combination with e.g. "find" ;).

However, I wanted to add that I forgot to mention, that fslint also
provides a GUI.

Anyway, to find "hidden" pictures, geo location data or used camera
type or even "original" time or if a flash was used, assumed the
pictures were done with digital equipment, might be more useful, than a
checksum or a diff.