Program to make low-res image files look sharper

Discussion in 'Photoshop' started by Robert Montgomery, Apr 23, 2009.

  1. A number years I heard about a program that makes low-res image files
    look sharper, by simulating pixels, so that the files can look sharp
    when printed at a large size.

    Does anybody know the name of program?
     
    Robert Montgomery, Apr 23, 2009
    #1
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  2. Robert Montgomery

    Voivod Guest

    Vapor/dreamware

    GIGO
     
    Voivod, Apr 23, 2009
    #2
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  3. I forgot to mention that the program should be Mac-compatible.

    Robert
     
    Robert Montgomery, Apr 23, 2009
    #3
  4. Robert Montgomery

    Colin.D Guest

    Genuine Fractals is reputed to be able to do this, also some advanced
    algorithms like Lanczos, and resampling as incorporated in Qimage, a
    specialist printing program.

    None of them increase detail, the manufactured pixels are derived from
    existing pixels, but the way they are derived can influence the look of
    the finished image to some extent. Best is to retake the image if possible.

    Colin D.
     
    Colin.D, Apr 23, 2009
    #4
  5. Robert Montgomery

    Roy G Guest



    I think it has to be a TV program called CSI. They can do real magic with
    digital images.

    Roy G
     
    Roy G, Apr 23, 2009
    #5
  6. Thanks.

    I know that none of those programs increase detail. What I want is to
    smooth jagged edges and avoid the halo effects of sharpening.

    Anyone know how Genuine Fractals compares to Alien Skin's Blow-Up?

    Robert
     
    Robert Montgomery, Apr 23, 2009
    #6
  7. Robert Montgomery

    Joel Guest

    I don't have the original message and hope you won't mind me quoting
    yours.

    - The name of the program is called Photoshop either CS2, CS3, and I think
    CS4 can do it too. You can find under Image Resize option but chose
    Percentage and other option instead.

    - It will help to improve a larger print but not making the blurry image
    looks sharper which is part of Sharpen and similar. I don't do sharpen
    besides messing to gain little experience to know much about it.

    - And to deal with low-rez image you often need more than making it look
    sharper (often make it looks worse), like you may want to edit in 16-bit
    mode instead of 8-bit.

    And I hope this won't be another suicide letter <bg>
     
    Joel, Apr 24, 2009
    #7
  8. I own Photoshop CS3 and I can't fine "Image Resize" in the program and I
    can't find where I would change the image size by percentage.
    So in other words the programs like Alien Skin's Blow-Up and On One's
    Genuine Fractals are unnecessary for blowing up images while minimizing
    the dark outlines and halo effect that are produced by blowing up?
    Huh?

    Robert
     
    Robert Montgomery, Apr 25, 2009
    #8
  9. Thanks, John and F. A.

    I tried enlarging an image file by percentage and saved it. I also tried
    enlarging the original image file by pixels and saved it.

    I printed both files, which ended up being the same size (118 megabytes)
    and the same resolution (300 dpi).

    I printed the images. I couldn't tell any difference between the printed
    results.

    Robert
     
    Robert Montgomery, Apr 26, 2009
    #9
  10. But I thought that Joel wrote that increasing an image size in Photoshop
    by percentage would be better than increasing image size by pixels, and
    do the same thing as enlarging by Genuine Fractals. Perhaps I
    misunderstood, though, because his writing (below) wasas unclear:
    Robert
     
    Robert Montgomery, Apr 27, 2009
    #10
  11. Robert Montgomery

    Fred Guest

    But I thought that Joel wrote that increasing an image size in Photoshop
    You can try enlarging the image in small percentages (10%) till you reach
    the desired size.
    This should keep the edges a bit sharper.
    You can also make an action to do that.

    Fred
     
    Fred, Apr 27, 2009
    #11
  12. Robert Montgomery

    Joel Guest

    You should learn to blame yourself for not smart enough to THINK about the
    whole thing.

    - You can't not nee the difference between the difference is so little so
    human eye can see

    - You can see a BIG difference if there is a BIG difference for you too see.
    IOW, if you start with a poor image then you may be able to see the
    difference.

    - You may even see BIGGER difference if you have to work on the very poor
    image (more than just resizing), and with combination of 16-bit etc. then
    you should see the difference.

    IOW, if someone here try to teach you English then you may not see much
    improvement, but if you are smart enough to teach me English then I may see
    a HUGE improvement. Get it? or what I am trying to say it depends on
    different situation, different technique.

    Or a little more hint.

    - If you print the same image before/after Enlargement size 4x6" then you
    should not tell the difference from a much lower quality. This is normal

    - If you print a good image size 8x10 then you may not be able to tell the
    difference. This is normal and the limitation of human eyes

    - Now, if you do everything correctly then print the before/after to size
    40x510 then you should be able to see the difference.

    If you don't want to print that large then test on a very very poor image,
    or ZOOM IN to study the difference. But you will have to stare at the same
    PIXELS (area) to see the difference.

    And you can always GOOGLE for more detail information, and many may have
    PICTURES to tell the differences between the original and others programs,
    techniques too.
     
    Joel, Apr 27, 2009
    #12
  13. Robert Montgomery

    Joel Guest

    Here, I don't do on good normal quality photo, but I sometime have to
    create a DVD label from a small 50-300K image from internet, so I don't do
    10% but quite often 200-400%.

    Just by looking at the percentage, you can tell how small and poor the
    image may be. Besides the Percentage I also have to switch to 16-bit mode,
    then back to 8-bit (to save or combine with other photo) after done all the
    editing.
     
    Joel, Apr 27, 2009
    #13
  14. Robert Montgomery

    Joel Guest

    Just select the "Image Resize" then instead of selecting the Width/Height
    etc. you just hi-lite the PIXEL selection then you will see the Percentage
    option available.

    OK, here is one of the links I just found so you can see the PHOTO
    http://www.photoshopessentials.com/essentials/image-resizing.php

    Then there should be few Percentage options these you may have to play
    with them to pick the one you like best. Since the photos I use to make DVD
    labels are not important so I just use whatever default setting
    I don't know much about Alien Skin Blow-Up to have anything to say, I
    don't own the Genuine Fractals but have read several talks about it, and
    comparing it with Adobe built-in Enlargement (Percentage) feature so I think
    both (and other too) work pretty similar to each other, and some may be a
    hair better than other.

    Enlargement doesn't work like Sharpen which darken some pixels to make it
    look sharper (in some case it may look worse). The Percentage/Enlargement
    using some trick (calculation) to multiply the pixel by size and pixel, so
    you will have MORE pixel that make a larger print looks better.
    Hahaha I have run into so many folks who drops a question then vanish, and
    we don't know if they read the answer, if the answer helps or not. And
    that's why I call them suicide letter just like many people who write a
    suicide note before killing themselves.
     
    Joel, Apr 27, 2009
    #14
  15. No; I should not blame myself. Thinking about the whole thing is useless
    without experimenting, because thinking is merely academic and nebulous
    due to variable, whereas experimenting produces tangible results and
    proof. You implied that same thought in the same letter as the criticism
    that you wrote above:
    That's why I was smart not to believe whatever I read without testing
    the scenario myself.

    Robert
     
    Robert Montgomery, Apr 27, 2009
    #15
  16. So it is YOU – not me – who is not smart enough.

    Robert
     
    Robert Montgomery, Apr 28, 2009
    #16
  17. Robert Montgomery

    Joel Guest

    BTW, the link above I try to point to you WHERE to locate the Percentage
    option *not* the technique the author tries to do and to say. Remember that
    the idea is trying to *enlarge* the image for better print *not* to compare
    the original with the enlarged those are 2 different beats have nothing to
    compare.

    Or if you want to compare then compare the PRINTS one with the original
    and one with the enlargement, and also up to much larger size where you can
    easily be able to tell the difference. Or do not print to 4x6 or 8x10 cuz
    you may not even be able to tell the difference if you decrease the quality.
     
    Joel, Apr 28, 2009
    #17
  18. Robert Montgomery

    Joel Guest

    Hmmm what do you think if I am telling you that you have too much water in
    your head? <bg>
     
    Joel, Apr 28, 2009
    #18
  19. Robert Montgomery

    Joel Guest

    Of course I'm not smart to teach you English! and of course you ain't
    smart enough to understand what you should understand <bg>
     
    Joel, Apr 28, 2009
    #19
  20. Robert Montgomery

    Joel Guest

    Here is another link about Genuine Fractals vs CS3, and remember that the
    images are 200% larger than the original. Or if you want to compare the
    original with the ones create by Genuine Fractals and Photoshop then you
    will have to use regular Image Resize (not Percentage) or ZOOM IN the
    original 200% to see the difference.

    http://ronmart.blogspot.com/2008/12/review-onone-software-genuine-fractals.html

    The link above isn't the good one comparing to other I saw long time ago,
    and I will try to locate it or the similar.

    More info

    http://www.photoshopsupport.com/tutorials/jennifer/bicubic.html

    Some sample of the results from a BETTER original to begin with. As I
    said, the original is very important, and it often be much worse if you
    screw up the original then applying sharpen or upscaling to it.

    http://photo.net/digital-darkroom-forum/00QlJy

    More info and sample. It isn't the same one I read long time ago, and I
    didn't read the link below but a quick browse through the zoom in samples

    http://www.photomigrations.com/articles/0605200.htm

    http://www.butzi.net/articles/resample.htm
    http://www.llvj.com/forum/lofiversion/index.php/t28857.html

    I still can't find the one with lot of closeup samples of many different
    plug-ins and technique. But after reading some of the above then you may
    have figured out that the author of the first link doesn't seem to get the
    idea of unscaling. Or s/he knows how to find and apply to command, but
    doesn't understand what it's for.
     
    Joel, Apr 28, 2009
    #20
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