Photoshop resizing...how to reduce size without loss

Discussion in 'Photoshop Tutorials' started by Michael Skvarenina, Aug 25, 2003.

  1. I constantly need to resize images. In Photoshop (I'm using version
    7), there is a "Resize image" function within Help as well as an
    "Image Size" function right in the "Image" pull-down menu.

    Problem is whenever I use either of these 2 options to resize an image
    smaller, I always end up with a very grainy result. What I end up
    doing is pasting the image into MS Word, resizing it there, taking a
    picture of it (print screen), pasting the print screen imamge into
    Photoshop, then cropping the pasted image to get the resized image.

    I don't know what Word does, but when it resizes, the image gets
    smaller without becoming very grainy.

    Can anyone shed some light on why and/or what I am doing wrong in
    Photoshop? (Any yes I've tried bicubic sampling).
     
    Michael Skvarenina, Aug 25, 2003
    #1
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  2. Michael Skvarenina

    Tacit Guest

    Problem is whenever I use either of these 2 options to resize an image
    What do you mean by "grainy"? A digital image has no grain, so a digital image
    is not "grainy" by definition. Do you mean "pixelated"?

    Do you want to make the image smaller on your computer screen, or do you want
    to make the image smaller when you print it out?

    if you want to make the image smaller when you print it out, do not resample
    it! use the Image Size command, turn "Resample Image" OFF, and enter the width
    and height you want in inches.
     
    Tacit, Aug 25, 2003
    #2
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  3. Michael Skvarenina

    Brian Guest

    After the resize are you zooming in (or out) really far, as opposed to
    viewing the image @ 100%? There is not way MSWord could do anything
    better than Photoshop (in fact, it's not resampling the image at all
    AFAIK, it's just reducing the display/print size, after which you're
    taking a screenshot - fine if you're working on screen-resolution pics,
    horrible if you're shooting for print resolution).
     
    Brian, Aug 25, 2003
    #3
  4. Yes I mean "pixelated". I want to make it smaller on my computer
    screen. Usually for a website were mable I have something originally
    100x100 and now I want it 60x60.

    I tried your suggestion of doing the image size command and turning
    off "Resample Image" but after entering the new size and pressing OK,
    nothing happened.

    Any ideas?
     
    Michael Skvarenina, Aug 25, 2003
    #4
  5. Michael Skvarenina

    Tacit Guest

    I tried your suggestion of doing the image size command and turning
    Something DID happen--the resolution changed.

    But that isn't what you want. If you want to change the size of the image in
    pixels, you must turn on Resample Image.

    Do not change the resolution. Instead, if you want the image to be 60 by 60
    pixels, turn on Resample Image and enter "60" as the pixel width.
     
    Tacit, Aug 25, 2003
    #5
  6. Michael Skvarenina

    J C Guest

    I would not recommend doing that. Pasting into Word and taking a
    screen shot is a very weird (and rather pointless) workaround.

    You need to understand Photoshop's resizing functions. PS can do
    everything you need it to do. I think the problem is that you're not
    sure what you need it to do.

    Just for the sake of argument, after you do your above procedure and
    have the image in Photoshop, take a look at the Image/Image Size info
    and see what DPI you're working with and what the final image
    dimensions are. Then consider you could have achieved the same thing
    using the Image/Image Size dialog box controls.


    -- JC
     
    J C, Aug 26, 2003
    #6
  7. Michael Skvarenina

    Ian Firth Guest

    Sounds like bicubic sampling isn't set.
     
    Ian Firth, Aug 26, 2003
    #7
  8. Tacit,

    Your suggestion is what I've tried in the past. I do an Image-->Image
    Size, then enter my new size in the Pixel Dimensions section.
    Resample Image, bicubic is selected. Incidentally, when changing the
    "Pixel Dimensions", the document size automatically changes yet the
    resolution stays at 72 pixels/inch.

    I agree with later posters that the Word solution is a weird
    workaround and that Photoshop should be able to easily resize my
    images with equal or better quality that my workaround method,
    unfortunately, I just don't get the same/desired results using
    Photoshop.

    If I don't get a solution that works in a day or so, perhaps I'll post
    some samples to a temporary website for everyone to review. It would
    be great to be able to resize without major loss directly in PS.
     
    Michael Skvarenina, Aug 26, 2003
    #8
  9. Michael Skvarenina

    Tacit Guest

    If I don't get a solution that works in a day or so, perhaps I'll post
    Please do. It's difficult to know what problem you're experiencing.

    Also, do a resize in Photoshop using the Image Size command, but just before
    you hit the OK button, take a screen capture and put that on the Web. I'd like
    to see what settings you have specified in the Image Size dialog.
     
    Tacit, Aug 26, 2003
    #9
  10. Michael Skvarenina

    Wed Guest

    Also check if you are working with Indexed color images. Those dont scale
    ok.
    Check if resampling algorithm is Bicubic.
     
    Wed, Aug 26, 2003
    #10
  11. Michael Skvarenina

    gsum Guest

    Michael,

    I tried to answer this yesterday but it appears that my post
    didn't get to the NG.

    You are using the wrong bit of Photoshop - that is why
    you're having difficulty. Select File and then select Save for Web
    (might be Save as Web File - I don't have photoshop to hand at
    the moment). This will bring up a window that provides all the
    facilities to exactly size your images in a variety of qualities.
    Higher quality images are larger. It also provides an estimate
    of how long the image will need to download at various
    modem speeds (Adobe think of everything). The usage of
    this facility is very easy and will do EXACTLY what you want.

    Graham
     
    gsum, Aug 27, 2003
    #11
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