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Mysterious change in picture files - Jpeg expert opinion needed
Posted: Mon Nov 27, 2017 6:54 pm
by FeriM
Mysterious change in picture files - Jpeg expert opinion needed
Hi all,
(short info)
Can someone tell me what caused the difference in the following two files ? It is the same picture, downloaded (copy/paste) from the same phone to the same win7 x64 machine at different times.
http://picpaste.com/DSC_0017-NkSWLXHf.JPG
http://picpaste.com/DSC_0017__2_-3viRfLKc.JPG
(details)
Usually I copy all the pictures from phone to a new folder, sometimes I delete them from phone, sometimes not. I discovered by chance that the same files that I copied at different times are different, it looks like some metadata change. I uploaded only a pair, but all files are affected the same way. I would like to know if the change was made by the phone itself (moving pictures to card storage?! software update?!), or some editor/viewer without user permission... however strange this might seem.
Phone is Sony Xperia Z2 (more details in file metadata), and the viewers I usually use for browsing are IrfanView, XnView and some old ACDSee...
So anyone who has an idea or can suggest a better place to ask the question, please help
Thanks
Re: Mysterious change in picture files - Jpeg expert opinion needed
Posted: Mon Nov 27, 2017 8:08 pm
by xnview
EXIF makernotes is the difference
Re: Mysterious change in picture files - Jpeg expert opinion needed
Posted: Mon Nov 27, 2017 10:49 pm
by michel038
Edit metadata with Fastphototagger :
Code: Select all
Group Métadata DSC_0017-c.JPG DSC_0017-d.JPG
Composite Aperture 2.0 2.0
Composite FocalLength35efl 4.9 mm 4.9 mm
Composite ImageSize 3840x2160 3840x2160
Composite LightValue 8.0 8.0
Composite Megapixels 8.3 8.3
Composite ShutterSpeed 1/50 1/50
Composite SubSecCreateDate 2017:06:12 08:57:22.206632017:06:12 08:57:22.20663
Composite SubSecDateTimeOrigina2017:06:12 08:57:22.206632017:06:12 08:57:22.20663
Composite SubSecModifyDate 2017:06:12 08:57:22.206632017:06:12 08:57:22.20663
Composite ThumbnailImage (Binary data 3561 bytes, (Binary data 3561 bytes,
EXIF:ExifIFD ColorSpace sRGB sRGB
EXIF:ExifIFD ComponentsConfiguratiY, Cb, Cr, - Y, Cb, Cr, -
EXIF:ExifIFD CreateDate 2017:06:12 08:57:22 2017:06:12 08:57:22
EXIF:ExifIFD CustomRendered Normal Normal
EXIF:ExifIFD DateTimeOriginal 2017:06:12 08:57:22 2017:06:12 08:57:22
EXIF:ExifIFD DigitalZoomRatio 1 1
EXIF:ExifIFD ExifImageHeight 2160 2160
EXIF:ExifIFD ExifImageWidth 3840 3840
EXIF:ExifIFD ExifVersion 220 220
EXIF:ExifIFD ExposureCompensation 0 0
EXIF:ExifIFD ExposureMode Auto Auto
EXIF:ExifIFD ExposureTime 1/50 1/50
EXIF:ExifIFD Flash Off, Did not fire Off, Did not fire
EXIF:ExifIFD FlashpixVersion 100 100
EXIF:ExifIFD FNumber 2.0 2.0
EXIF:ExifIFD FocalLength 4.9 mm 4.9 mm
EXIF:ExifIFD ISO 80 80
EXIF:ExifIFD LightSource Unknown Unknown
EXIF:ExifIFD MeteringMode Multi-segment Multi-segment
EXIF:ExifIFD SceneCaptureType Standard Standard
EXIF:ExifIFD ShutterSpeedValue 1/50 1/50
EXIF:ExifIFD SubjectDistanceRange Unknown Unknown
EXIF:ExifIFD SubSecTime 206635
EXIF:ExifIFD SubSecTimeDigitized 206635
EXIF:ExifIFD SubSecTimeOriginal 206635
EXIF:ExifIFD WhiteBalance Auto Auto
EXIF:IFD0 Make Sony Sony
EXIF:IFD0 Model D6503 D6503
EXIF:IFD0 ModifyDate 2017:06:12 08:57:22 2017:06:12 08:57:22
EXIF:IFD0 Orientation Rotate 90 CW Rotate 90 CW
EXIF:IFD0 ResolutionUnit inches inches
EXIF:IFD0 Software 23.5.A.1.291_6_f100000f 23.5.A.1.291_6_f100000f
EXIF:IFD0 SubSecTime 206635
EXIF:IFD0 SubSecTimeDigitized 206635
EXIF:IFD0 SubSecTimeOriginal 206635
EXIF:IFD0 XResolution 72 72
EXIF:IFD0 YCbCrPositioning Centered Centered
EXIF:IFD0 YResolution 72 72
EXIF:IFD1 Compression JPEG (old-style) JPEG (old-style)
EXIF:IFD1 Orientation Rotate 90 CW Rotate 90 CW
EXIF:IFD1 ResolutionUnit inches inches
EXIF:IFD1 ThumbnailLength 3561 3561
EXIF:IFD1 ThumbnailOffset 11766 796
EXIF:IFD1 XResolution 72 72
EXIF:IFD1 YResolution 72 72
EXIF:InteropIFD InteropIndex R98 - DCF basic file (sRGR98 - DCF basic file (sRG
EXIF:InteropIFD InteropVersion 100 100
ExifTool ExifToolVersion 10.33 10.33
File:System Directory D :\test D :\test
File:System FileAccessDate 2017:11:27 23:03:59+01:002017:11:27 23:04:23+01:00
File:System FileCreateDate 2017:11:27 23:03:59+01:002017:11:27 23:04:23+01:00
File:System FileModifyDate 2017:11:27 23:03:59+01:002017:11:27 23:04:23+01:00
File:System FileName DSC_0017-c.JPG DSC_0017-d.JPG
File:System FilePermissions rw-rw-rw- rw-rw-rw-
File:System FileSize 2.7 MB 2.7 MB
File BitsPerSample 8 8
File ColorComponents 3 3
File EncodingProcess Baseline DCT, Huffman codBaseline DCT, Huffman cod
File ExifByteOrder Little-endian (Intel, II)Little-endian (Intel, II)
File FileType JPEG JPEG
File FileTypeExtension jpg jpg
File ImageHeight 2160 2160
File ImageWidth 3840 3840
File MIMEType image/jpeg image/jpeg
File YCbCrSubSampling YCbCr4:2:0 (2 2) YCbCr4:2:0 (2 2)
MakerNotes:Sony FaceInfoLength 26
MakerNotes:Sony FaceInfoOffset 94
MakerNotes:Sony FacesDetected 0
MakerNotes:Sony MetaVersion
MakerNotes:Sony SoftSkinEffect Off
MakerNotes:Sony SonyDateTime 2017:06:12 08:57:22
MakerNotes:Sony SonyImageHeight 2160
MakerNotes:Sony SonyImageWidth 3840
Re: Mysterious change in picture files - Jpeg expert opinion needed
Posted: Tue Dec 05, 2017 1:34 am
by FeriM
Any idea why the maker notes are included vs missing from same files, downloaded at different points in time? Is there some setting on the phone?
Re: Mysterious change in picture files - Jpeg expert opinion needed
Posted: Wed Dec 06, 2017 1:58 pm
by michel038
Perhaps your phone tried to detect faces later, and wrote the last 8 lines of exif metadata... and some other metadata were updated.. ?
Each software, each camera writes a lot of metadata using his own way ...
You can see some Sony metadata here :
https://sno.phy.queensu.ca/~phil/exifto ... /Sony.html
Re: Mysterious change in picture files - Jpeg expert opinion needed
Posted: Sat Dec 16, 2017 9:45 pm
by XnTriq
According to
Stuffware Photo Studio, there's also an empty EXIF GPS IFD in
DSC_0017-NkSWLXHf.JPG which is missing in
DSC_0017__2_-3viRfLKc.JPG.
