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Newbie Question about printing

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  • 23-01-2009 2:27am
    #1
    metsman1986
    Closed Accounts Posts: 1 ✭


    Hi there,

    I have a digital photo, .tif, that's 2873 pixels by 3249 pixels at 300 dpi. RGB color, 16 channel. My client needs a 60 inch print for a display. Will this thing reproduce that large? I'm not familiar at all with printing or anything. Could someone please help?

    Thanks,

    Mike


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    #2
    rockbeer
    Closed Accounts Posts: 1,422 ✭✭✭rockbeer


    You're a long way short of what you need for top quality. Whether it will be good enough depends how fussy your client is, and also on the image itself which may or may not be suitable for the amount of upscaling required.

    A good rule of thumb is that you want a resolution of around 300dpi at print dimensions. Your 2873 x 3249 pixel image measures around 9.6" x 10.8" at 300 dpi so you can see it will require upscaling by a factor of around 6 to approach 60" square. That's an awful lot of upscaling.

    But without seeing the image it's hard to say how good the result will be. All anyone can say with any certainty that it won't be perfect.


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    #3
    Hank_Scorpio
    Closed Accounts Posts: 552 ✭✭✭Hank_Scorpio


    Well so your image is mostly 10 x 10 inches.

    You need to print it to 60 inches.

    So if your image is 300 dpi, then increasing 6 times in size leaves your image at 50 dpi.

    So the distance is the key here to looking at images, the closer you are the more noticeable it is:

    100 dots per inch viewed from 1-5 feet,

    72 dpi for 5-10 feet

    50 dpi for 10-15 feet

    and

    25 dpi for further than 15 feet



    So if your display is going to be viewed from 10 - 15 feet away then 50 dpi would work.

    Any closer that 10 feet then you will see the pixelation.



    If you want to try and upscale the dpi - it's a bit difficult but you can get some results using this method:


    Basically increase the size in 10% increments using the Bicubic Smoother Option.

    You may need to use an unsharp mask every 2 or 3 increments to a certain degree (you can use your eyes :D )

    anyway, if you increase it in 10% increments you will get some results that won't look too bad.

    Don't forget it depends on how far away the display is going to be from the person viewing it!


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