From jfif



Keywords: from jfif
Description: I recently put the SD card of my camera in a Windows 7 PC and start browsing pictures on it. I noticed some were not aligned correctly and use rotate feature included in Windows Photo Viewer in

I recently put the SD card of my camera in a Windows 7 PC and start browsing pictures on it. I noticed some were not aligned correctly and use rotate feature included in Windows Photo Viewer in order to view them as I wanted.

What I didn't know is that when rotate feature is used, it also overwrite the picture when pressing next or previous button resulting in a possible loss of quality (which is in my opinion a bad idea, app should at least warn user of what will happened when using such a feature).

After that, I re-inserted the SD card back in my camera and bad surprise happened. the rotated picture could not be previewed anymore. Instead, i got a black screen saying "Incompatible JPEG format". Other files (untouched) are still working ok.

To try to understand what happened I opened a JPEG file from camera and one generated on windows 7 in a hex editor. Here is the difference.

The camera JPEG files have a Exif tag in them (with 0xE1 in header). Other JPEG files (Windows 7) have first a JFIF tag in it, followed by a Exif tag (with 0xE0 in header).

I understand that original camera files have been reencoded and thus lose some quality (getting originals back is impossible). What i want know if convert them from JFIF back to Exif (without a second loss of quality if possible. )






Photogallery From jfif:


File:JPEG JFIF and 2000 Comparison.png - Wikimedia Commons


Abaco Estate Services


Abaco Estate Services


DIY Walking Dead Surprise Party - Truly, Tricia


Jfif3 restrict1108218813


Index of photos/


TuttleOFX-data/downloadJpeg.py at master  tuttleofx/TuttleOFX ...


Black Hat Arsenal peepdf Challenge 2015 writeup


My First Autopsy - PC Sympathy


JPEG images with CMYK and YCCK image data | Werner Randelshofer's Blog


DIY Walking Dead Surprise Party - Truly, Tricia


DIY Walking Dead Surprise Party - Truly, Tricia


phenix/WWW/publish/elke/TALKS/Alberto.Fasso.BNL.seminar.FLUKA.key


milc - faq - 0.50319200 1444988614


Jfif3 restrict1108218813


phenix/WWW/publish/elke/TALKS/Alberto.Fasso.BNL.seminar.FLUKA.key


phenix/WWW/publish/elke/TALKS/Alberto.Fasso.BNL.seminar.FLUKA.key


DeviantArt: More Like Dragonball Z Battle of Gods Goku VS Bills ...


The Metadata in JPEG files - Exiv2


Cartridge88 - Posts