Converting 72 dpi to 300 dpi

Discussion in 'Photoshop' started by Toronto Web Designer, May 8, 2004.

  1. Hi,

    Is converting a low resolution bitmap image (72/96 dpi) to a high
    resolution (300 dpi/ppi) bitmap image still considered impossible?

    Regards.
     
    Toronto Web Designer, May 8, 2004
    #1
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  2. Toronto Web Designer

    woodsie Guest

    yes
     
    woodsie, May 8, 2004
    #2
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  3. Toronto Web Designer

    Graytown Guest

    You could always try software such as S-Spline to increase the
    resolution.... Not as good as the original, but pretty effective in tough
    situations

    Rohit
     
    Graytown, May 8, 2004
    #3
  4. Toronto Web Designer

    SHANE Guest

    the image will not look that good when done........... look for something
    else
     
    SHANE, May 8, 2004
    #4
  5. Toronto Web Designer

    Eric Gill Guest

    (Toronto Web Designer) wrote in
    "Still" and "considered" do not belong in that sentence

    And the answer is yes.
     
    Eric Gill, May 8, 2004
    #5
  6. Toronto Web Designer

    imaspy Guest

    there are some nice software programs going around the at the moment.

    however

    detail CANNOT be invented where no detail previously existed. end of story
    unfortunately.
     
    imaspy, May 8, 2004
    #6
  7. Toronto Web Designer

    Ben Woodward Guest

    Without more info on your end, it's impossible to answer accurately (I'm
    surprised everyone else has already jumped the gun to inform you it's
    flat-out impossible).

    If the lo-res image you have has enough pixels in it, you'll be fine.
    Increase the "resolution" to 300 ppi without resampling and you've got a
    print-quality image that will print perfectly, albeit at about 1/3 the
    final print size of the original. If that's okay with what you need it
    for, you're good to go.

    If, on the other hand, you need a final image size that's closer to the
    original image size, or even larger, you might be out of luck. I've had
    *some* luck in the past tweaking lo-res images with a combination of
    Gaussian Blur, "pumping pixels" into the image (increasing the res and
    resampling), and then Unsharp Masking (in that order). It has limited
    capabilities, but depending on your image and it's ultimate end use, you
    might get somewhere with it...

    Good luck.

    Ben W.
     
    Ben Woodward, May 8, 2004
    #7
  8. Toronto Web Designer

    Rob Guest

    Go to Image, Image Size..., untick Resample Image, and type in 300
    pixels/inch. Of course, ppi/dpi has no relevence whatsoever unless the
    images are intended for print output or layout at 100% scale, and thus can
    be previewed accurately to size.
     
    Rob, May 8, 2004
    #8
  9. Are you pointing out a grammar flaw? If you are, it would be
    productive and positive to point out exactly why it's a flaw.
    Otherwise, what is the point to mention it?
     
    Toronto Web Designer, May 8, 2004
    #9
  10. Cool. :)

    I believe I have found a simple production method that requires no
    additional programs. Having said that, I want to know if anyone is
    interested in testing my method and reporting back to the newsgroup.
    Any takers? It's free!
     
    Toronto Web Designer, May 8, 2004
    #10
  11. Hi Ben,

    Thanks for the response!

    So am I but everything is *impossible*, didn't you know? ;-) I was very
    interested to see if the consensus was that it was still impossible (as a
    local Web group was very skeptical of my findings) or if I was just one of a
    few who knew that it's no longer impossible and probably hasn't ever been
    impossible. :)
    I have a fix for that. Email me (check the headers for the address) and I
    will tell you how to solve that one.
    Ben, I'm impressed! That's all I'm going to say. hehe
    That's awesome! Thanks. :) I'm not much of a mathematical (pixels)
    wizard, so I appreciate your thoughts quite a bit!

    I have found another method for original size matching. I haven't figured
    out a way to make it larger than the original size without doing what you
    suggested above (although I will certainly play around with that method).
    Hopefully it will come to me in a dream. lol
    Thank you. Email me (yahoo.ca) for another solution(free! grin).
     
    Toronto Web Designer, May 8, 2004
    #11
  12. Thanks Rob. I will try that method. If you want to know of another one,
    just email me. Cheers!
     
    Toronto Web Designer, May 8, 2004
    #12
  13. Toronto Web Designer

    Eric Gill Guest

    (Toronto Web Designer) wrote in
    "Still" presumes this situation may change. It will not.

    "Considered" implies it is a matter of opinion. It is not.
     
    Eric Gill, May 8, 2004
    #13
  14. Toronto Web Designer

    Voivod Guest

    he's pointing out that those two words are extraneous and
    that the task IS impossible.
     
    Voivod, May 8, 2004
    #14
  15. Toronto Web Designer

    wavy~dave Guest

    Was the image shot with a digital camera?

    I read that a resized digital photo reproduces better if you increase
    the resolution at 10% increments rather than at 100%.

    I've never tried it, don't know if it'll work for you.

    Best of luck!
     
    wavy~dave, May 8, 2004
    #15
  16. Hi Eric,
    Thank you for responding.

    I'm one of those people who think there is possibility in everything. There
    was a time that my spirit wasn't as creative and I was racking my brain
    trying to figure out how to be *more* creative. Finally, through an
    epiphany, I found that it was my judging brain that was holding me back.
    These days, while I still judge, I'm much more open to possibilities and
    phrases like, "can't do it", "impossible". "that's silly" and "no way" are
    pushed away from my thought processes.

    What is a fact? At one point it was a fact that the world was flat. It was
    also a fact that flight was impossible. Facts are fleeting. Opinions are
    ever flowing.

    Ben W. and others are on the mark. We have found methods to overcome this
    problem. It IS possible to do that conversion process! Now, if you want to
    argue why it isn't possible, that's certainly a worthy venture and we could
    all learn quite a bit from such a discussion but then it won't be truly
    productive or objective until the flipside is discussed as well. Why IS it
    possible?

    Regards.
     
    Toronto Web Designer, May 8, 2004
    #16
  17. Hiya!

    "wavy~dave" (snip) wrote in message
    resolution at 10% increments rather than at 100%.

    I believe that could work. I'm not mathematically skilled ;however,
    intuitively I get this feeling that digital photos would produce a better
    result.
    Thanks! :)

    btw, are you in the Toronto area?
     
    Toronto Web Designer, May 8, 2004
    #17
  18. Toronto Web Designer

    Voivod Guest

    Yet oddly, you won't publicly disclose those methods...
     
    Voivod, May 8, 2004
    #18
  19. Toronto Web Designer

    Eric Gill Guest

    <plonk>
     
    Eric Gill, May 8, 2004
    #19
  20. You are kidding, right? hehe. There are two designers who did disclose their
    methods. I haven't disclosed mine but have offered mine in return for their
    kindness and generosity. I'm past giving away trade secrets while remaining
    poor! lol

    I will do a test for you if you like (just send me an image you want
    converted and I will do it for free), I have already offered that and for
    others I will give away my method. But I'm not about to get ripped off by a
    whole bunch of newsgroup opportunists. *grin* I help the community in
    other ways. This, apparently, is a trade secret. And as someone else
    mentioned (and given what I got in my mailbox), there is software hitting
    the shelves to do the conversion process. I don't need to use additional
    software though.

    My suggestion is for people to consider this as a possibility and to: a)
    either work towards finding a method that works or b) employing those that
    can do it but stop telling clients it's impossible - because it isn't
    impossible! My *real* business name is not listed here, I'm not here to
    solicit business (although that's always nice to get), and there are others
    who can do what I do. I was here to ask a simple question: Do people think
    this is *still* impossible? The answer: most people do *think* it is
    impossible. I'm quite thankful that there are those who were giving of
    their resources to tell me of their methods and in return I will give them
    my methods.

    There is no progress or innovation in thinking things are impossible.
    Instead, tell us exactly why you think it's impossible and if one has a
    skeptics mind, also work towards understanding why something IS possible.

    In other words, if someone says something is impossible, don't follow the
    herd - beat to your own drum.
     
    Toronto Web Designer, May 8, 2004
    #20
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