Women in Technology

Article:		Version Control in Aperture
Subject:		aperture messes up my versions - overly saturated and size-reduced
Date:		2007-09-16 22:27:59
From:		rukami
Hi, well I generaly do like the idea of versions and non-destructive editing. But aperture is doing sth very strange with versions when exporting them: I import a new jpg picture, size 4.6 MB. I don t make any adjustment to it. The version appears as 4.63 MB in the aperture metadata view. Next step I export the version with export preset "JPEG- original size". Now 2 things happen: 1. The exported version is smaller than the original, 3.8 MB vs original 4.6 MB. Could live with that but it obviously makes me wonder what aperture does with the image when exporting. 2. So I open both files outside of aperture with preview to compare the original I imported (master file) and the same picture exported through aperture (the version): the colors of the version are much more saturated than the original master. And this happens with every single picture I export. So I checked if for some reason I messed around with the editable export presets of "JPEG- original size". Nothing unusual there. I noticed the default jpeg quality preset of aperture is on 10. I moved it to 12, the maximum. When I export the picture with this setting I get a huge 8.4 MB version, but with the same exaggerated color saturation. I ve tried everything, I changed the DPI from 72 to 300, tried all the colorsync profiles in the drop down, but there is no way I get the same picture back as I had imported. If I export the master I do get the same picture back (of course since aperture doesnt modify the master). Now this seems a very serious issue to me - I ve looked on the web and on this forum and apparently nobody has this problem - or nobody realized it yet? If I cant find a way to fix this I will not use aperture anymore and lose all my organizing work (folders, projects, albums etc) in aperture. Since all you do in aperture is work with versions (all the metadata, keywords, adjustments) I just can t live with the fact that aperture does weird things with them. Anyone a clue what could happen? I would be extremely happy about any comment. I have a couple of screenshots of the comparisons between the original photo and the exported (overly saturated) version, but cant find a way of posting them here. Thanks, Rudi

Showing messages 1 through 3 of 3.

• aperture messes up my versions - overly saturated and size-reduced
  2007-09-19 22:05:18  Jefferymorse [View]
  
  
  Hi Rudy.
  
  From what you write it sounds like Aperture is performing as expected. If you make JPEGs from JPEGs it will change the file size. If you compress a JPEG at a higher quality setting the file size will get larger, sometimes exceeding the size of your original. And you will often see more saturated colors in exported JPEGS.
  
  It actually sounds like you want to Export Masters. That will give you an identical copy of your original JPEG, same size and color, and you can do whatever you want with it.
  
  Peace/Luck
  
  Jeffery Morse
  
  
• aperture messes up my versions - overly saturated and size-reduced
  2008-09-16 15:13:45  dmleearch [View]
  
  
  One more question...
  
  Should changing the dpi when exporting have any effect on the file size?
  My thought was if "original file size" is selected then the resolution of the image to stay the same, regardless of the dpi settings. The dpi and overall resolution dimensions are separate from each other...?
  
  Thanks again.
  
  Dave
• aperture messes up my versions - overly saturated and size-reduced
  2008-09-16 15:05:13  dmleearch [View]
  
  
  I have a question regarding this same issue...
  
  Assuming I want to export an edited version of a jpeg...
  
  Would I then be exporting the "version" of the master?
  Do you have any recommendations on what image quality to use for exporting an edited version? Or what color settings to use to avoid over saturation?
  
  Lastly, does this same problem with saturation occur if you are exporting a jpeg version from a RAW file?
  
  thanks.
  
  -Dave