Photoshop can't do lossless JPEG rotation ??!!

Discussion in 'Photoshop Tutorials' started by Frans, Aug 19, 2004.

  1. Frans

    Frans Guest

    I can't either!
    But if you say so, I don't like to argue. You're right.

    Frans, Aug 19, 2004
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  2. How crap is that?!

    Luckily I have ACDSee as well.

    But I just can't believe this omission!

    Synapse Syndrome, Aug 19, 2004
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  3. Frans

    jjs Guest

    Before you go shitting on Adobe, check the facts.
    jjs, Aug 19, 2004
  4. Synapse Syndrome, Aug 20, 2004
  5. Frans

    Stuart Guest

    Stuart, Aug 20, 2004
  6. Frans

    Rick Guest

    Huh? Ever hear of portrait mode?

    Sometimes JPEG rotation is also unavoidable because not
    all cameras have a raw or tiff mode.

    Rick, Aug 20, 2004
  7. Frans

    Stuart Guest

    The OP is talking about Photoshop not a camera. If he is that worried
    about quality then he should not be editing using jpeg in the first
    place. If the camera only produces jpeg images then he can save it into
    a different format for all his editing using Photoshop.

    Stuart, Aug 20, 2004
  8. Frans

    Rick Guest

    Actually the OP didn't mention what the source is for his
    images. It's probable they are from a camera, and more
    than likely one that doesn't have a lossless format option.

    Also, if one only needs to rotate images, there's nothing to
    be gained by saving them to a different format, unless for
    some reason one is limited to using PS7 or earlier. Even
    freeware editors such as IrfanView can do lossless JPEG

    Rick, Aug 20, 2004
  9. Frans

    Toby Thain Guest

    Toby Thain, Aug 20, 2004
  10. Not very, since this is a feature best implemented in a
    thumbnailing/slideshow program like:
    Yep, lucky you, having what is an essential piece of any digital
    photographer's software suite.
    You could always use PaintShop Pro if you just *have* to have the feature
    built into your image editor.

    Get back to me when you find a good reason why, will you?
    Lee Oswald Ving, Aug 20, 2004

  11. Yes, it is because I use a digital camera that has a sensor so that it
    auto-rotates pictures when I hold the camera sideways. I tend to keep the
    sensor on, as it is usually useful. There is no RAW or TIF format in this

    But I also use the camera to take photogrammetry photos to use in
    Photomodeler Pro, which require all the pictures to be of the same

    As I forget to turn the sensor off I need to rotate these pictures
    losslessly and with keeping the Exif data. I would expect to be able to use
    Photoshop to do this.

    This is a stupid omission and it sucks.

    Synapse Syndrome, Aug 20, 2004
  12. Frans

    Tacit Guest

    This is a stupid omission and it sucks.

    Not if you think about Photoshop's purpose and intended audience.

    Photosop is intended as a high-end digital image editing program. It's not
    intended as a slideshow or thumbnail caltaloging application.

    Normally, the reason you would open an image in Photoshop is to edit that
    image; if your goal is simply to view, catalog, or create slideshows of images,
    there are many more lightweight applications that are better suited to those
    tasks. Just as a can opener is a better tool than a band saw for opening cans,
    even though a band saw will do the job, so are cataloging and slideshow
    programs better suited to viewing and cataloging images, even though Photoshop
    will do the job.

    If your goal is to edit an image, you don't need lossless rotation--because
    you're going to be manipulating the image anyway.

    Lossless rotation is properly the domain of a cataloging application or an
    image viewer, rather than an image editor. Digital image manipulation is a job
    which typically requires more than one tool, each of which should be used for
    the job best suited to it.
    Tacit, Aug 20, 2004
  13. Frans

    jjs Guest

    Oh! Duh! Ya learn something every day. Geeze, I just got to try one of those
    can opener things.
    jjs, Aug 20, 2004
  14. Frans

    Tacit Guest

    Oh! Duh! Ya learn something every day. Geeze, I just got to try one of those
    Hope you weren't trying to open something *too* messy with the band saw... ;)
    Tacit, Aug 20, 2004
  15. Frans

    jjs Guest


    jjs, Aug 20, 2004
  16. Frans

    Mike Russell Guest

    Belt sanders work well for peeling hard boiled eggs, too.
    Mike Russell, Aug 21, 2004
  17. Frans

    Hunt Guest

    Provided, of course, that you have not been drinking, ingesting any controlled
    substances, are not hungry, or... have a lot of eggs.


    PS eye protection is mandatory!
    Hunt, Aug 21, 2004
  18. Agreed!

    The Old Bloke, Aug 21, 2004
  19. Frans

    Arty Facting Guest

    If it is so darned critical try IrfanView (it is free, it is good, it is
    free and good)

    Once your JPEG is open in IrfanView:
    1 - click on Options (menubar)

    2 - then on JPEG lossless operations

    3 - read the information before committing any changes

    Just as an aside, I prefer to open original JPEG, append an incremental
    identifier to the filename such as *01* but without the *'s and save it in
    PSD with layers option ticked. I don't know if this has any other
    advantages other than making me feel quite a slick Photoshopper

    Arty Facting, Aug 22, 2004
  20. Frans

    jjs Guest

    Uh, then I best have a lot of eggs.
    jjs, Aug 23, 2004
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