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Thread: Increase dpi

  1. #1

    Increase dpi

    Now I know when you create an image you should create it a 300 dpi or so on.
    What about all these digital cameras and photo discs that only hold a image at 72 dpi, the image is huge like 35 inches on screen but when you reduce it to fit say a postcard, what do you do then?
    Or same senario, bringing a picture of from 72 to 300?
    Is there anyway to do this without extreme image loss?
    I know you cant just say make a 72 dpi picture 300, but can anyone help?
    These items will be going to a commercial press and I dont want them fuzzy, any help?

  2. #2
    Regular
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    England
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    resolution

    Hi mate

    I'm sure you know that if you've got a postcard siz image at 72dpi, you can't really blow it up to 300 without loads of pixelation. If you're images are 72dpi and massive as a digi camera will produce, you can go into image size in ps, and cahnge 72dpi to 300dpi. This will increase the pixels at the same time as reducing the images size, and the image will not suffer.

    If you are printing at postcard size set the image size aswell (with constarin propotions selected) and get the file as close to postcard size at 300dpi, before placing it in quark etc. This will enable you to sharpen the piccie in ps and know roughly what you're going to get because you're not increasing the image in quark.

    Hope this helps,I aint that good at explaining things

    M@

  3. #3
    Regular
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    Jun 2003
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    When you reduce a digital camera image in Pshop, make sure that the "resample image" box is UNCHECKED. Then you adjust the resolution or image size to whatever you want without losing quality. example: I have a digital camera image at 72 dpi that is 21.33 x 28.44. when I uncheck the resample image box and make the image 300 dpi, the size reduces to 5.12 x 6.827.

    The only way I know to increase a small image with low dpi is to use a plugin called Extensis pxl SmartScale. I've seen it in use. It looks to do the job well. See if you can get a demo or something from Extensis.

    [Edited on 10/3/2003 by K_Phoenix]

  4. #4
    Barrista
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    5,668
    Rainer also recently introduced the café to Genuine Fractal, which also does a great job. The discussion is here:
    http://www.dreamweavercafe.com/cafe/...id=6823&page=1

  5. #5
    Thanks for all your input guys.
    Im going to give this genuin fractal a try. Looks pretty good.
    I have been using help>resize image to do most of my scaling for lpi control. It seems to work pretty good so far.

    Im probly going to give the Extensis a try too. See which one I like better.

    All in all you guys seem to do things ruffly the same way I do. So I beleive Im on the right track so far.

    Once again, thanks for all the help.

    Undersketched

  6. #6
    Barrista
    Join Date
    Aug 2004
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    Ottawa
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    5,668
    If you try both, I would LOVE to see a side by side compairson. Don't forget to post one!

    Thanks!

  7. #7
    If I can figure out this web space prob Im having (refere to general topics) I would love too.
    Undersketched

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