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Re: [LUG] Photo management- JPEG attributes

 

Quoting Simon Williams <simon@xxxxxxxxxxxxxxxxxxx>:

> 1. The collection has been taken by about 7 different cameras at various
> times. Since the actual file creation and modification times are going
> to be wrong (due to copying them around), I need to get at the JPEG time
> stamp (I am seriously hoping everyone had their clocks set right). I
> cannot find any command line programs which will give me the JPEG
> attributes- anyone know of any?

That data contained in JPEGS is more commonly known as EXIF data -  
Jhead is one common application that can read that data. There are  
others about as well.

> 2. Several of the cameras know which way up they are when they take the
> photo. It seems that they save this as a JPEG attribute and leave the
> picture alone. The konqueror photo viewer and gwenview read this and
> display the photo the right way up, but firefox and other programs do
> not. Using the rotate tools in the konqueror photo manager I can rotate
> 90 degrees in one direction and then rotate back and the image itself is
> rotated and the problem is solved, but to do that for several hundred
> photos manually is silly (this will hopefully be solved at the same time
> as 1).

That information is also in the EXIF data.

Pete Hatton
---------------------------------
E-mail:  pete@xxxxxxxxxxxxx
Webpage: http://www.monolight.org
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