Does iPhoto compress images?

Discussion in 'Digital Photography' started by lamina, Sep 8, 2006.

  1. lamina macrumors 68000

    lamina

    Joined:
    Mar 9, 2006
    Location:
    From Canada, living in Seoul
    #1
    When importing images with iPhoto, does it compress them?
     
  2. Super Macho Man macrumors 6502a

    Super Macho Man

    Joined:
    Jul 24, 2006
    Location:
    Hollywood, CA
    #2
    Nope, it leaves all your originals untouched. When you make any adjustments, it makes a copy and then performs the adjustments on the copy.
     
  3. Abstract macrumors Penryn

    Abstract

    Joined:
    Dec 27, 2002
    Location:
    Location Location Location
    #3
    Yeah, and that edited copy is like twice compressed. Well, it's uncompressed, edited on, and then compressed again........erm, or something like that. Either way it's not good. Don't go back and make small edits too many times.
     
  4. eRondeau macrumors 6502a

    eRondeau

    Joined:
    Mar 3, 2004
    Location:
    Canada's South Coast
    #4
    iPhoto uses some sort of black magic to compress the originals into the thumbnails. However the originals remain untouched when they are imported from your camera.
     
  5. ChrisA macrumors G4

    Joined:
    Jan 5, 2006
    Location:
    Redondo Beach, California
    #5
    Yes and no.

    All JPG files are compressed. iPhoto writes JPG files so therefore it writes compressed files. But iPhoto does nothing different then other programs that write JPG files. iPhoto can also work with formats that are not compressed. It can read RAW format images and write TIFF files.
     

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