Image Sizing/Scaling - Photshop CS

Discussion in 'Digital Photography' started by BobS, Dec 23, 2004.

  1. BobS

    BobS Guest

    I'm certainly no guru when it comes to using Photoshop and I've purchased
    several books on how to use it - and I've been studying. But none of the
    books or the PS Help files appear to address this basic dilemma.

    Using the highest quality settings on my camera for jpg, I get a file size
    of about 2.5Mb to 3Mb on average. When in PS and I check the image size it
    says its approx 27"x42" for the screen (72dpi) and that's all fine. I
    convert to .psd, do all my editing, flatten and then resize the final image
    for printing.

    But when I do resize, there does not appear to be a way to get a true 8x10
    when it's constrained so you keep the proportions. Now if it was a picture
    where I didn't mind if I loose ~15/16's of an inch off the top and bottom so
    it fits an 8x10 picture frame, then the 8"x11.878" setting is fine.... But,
    when you have placed a vignette around the image and need a full-bleed image
    because it's going to be inserted into an all-glass crystal, molded picture
    frame where the edges are visible - it's a real pain in the arse to get
    there from here.

    Anyone have any tricks of the trade for scaling, resizing an image down to a
    true 8"x10" size? I would think that Photoshop would have a preset/default
    setting that I could use that would keep the proportions of the picture and
    allow one to scale/resize it down to the exact size needed. As I recall,
    Corel's PhotoPaint 7 did have that feature and if it's in PS, I have yet to
    find it.

    I did use the Resize Wizard also - no help. What I'm doing now is doing my
    edits then use the cropping tool (and using the rulers) to crop the image to
    8x10". After that, I then apply the oval shaped vignette, any touch-up
    (sharpening, etc.) then flattening and saving the file for printing.

    Thanks for your suggestions,

    Bob S.
    BobS, Dec 23, 2004
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  2. BobS

    Guest Guest

    it's there.
    you say your image is approximately 27x42, which is a 1:1.55 aspect
    ratio. i'll assume it is really 1:1.5, or 2:3 - a common ratio. this is
    a different aspect ratio than 8x10, which is 1:1.25. thus, you need to
    pick the selection tool, give it fixed aspect ratio of 8x10 (or 10 x 8
    if it is landscape) and make your selection for cropping. then pick
    image/crop. you now have an 8x10 (or 10x8) aspect ratio image.

    next, go to image/image size... and make sure constrain proportions is
    checked, and resample is *not* checked. then in the document size
    section, enter in 8x10 inches (or whatever size print you want).
    depending on the printer, it might need to be slightly bigger.
    the aspect ratio changes, therefore something must be cropped out.
    photoshop doesn't know what you want to keep and what you want to
    discard, so there can't be a default.
    how did it know what parts were important? or did it just assume the
    middle and hope that was ok?
    Guest, Dec 24, 2004
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  3. BobS

    BobS Guest


    Thanks for your comments and explanations. As for CorelPaint, it may have
    been CorelDraw (vector drawing program) that would resize.

    Happy Holidays to you and yours,

    Bob S.
    BobS, Dec 24, 2004
  4. BobS

    Gadgets Guest

    Or a quicker option that resamples the image, just set dimensions and say
    300dpi in the crop settings.

    Besides the marquee method, an image size (resample off) to get one of the
    8x10 dimensions, plus a canvas size to chop down the other... less control
    of positioning for the chop though.

    Cheers, Jason (remove ... to reply)
    MS Wireless Intellimouse $89
    Gadgets, Dec 28, 2004
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