Can retina display fix this?

Discussion in 'iPhone' started by calvinc, Aug 28, 2010.

  1. calvinc macrumors member

    Joined:
    Jun 29, 2010
    #1
    Images in Safari always look grainy when zoomed in. On the other hand, text is always crystal clear. What causes this? Is there anything Apple can do to fix this?
     
  2. marksman macrumors 603

    marksman

    Joined:
    Jun 4, 2007
    #2
    All images?

    Most people who build websites use images of a certain quality level and compression so it looks good at a certain resolution. This saves downloading and space.

    If you zoom in on an image it very well could look grainy, it most likely depends on the quality of the image itself.
     
  3. KFujiwara macrumors member

    KFujiwara

    Joined:
    Dec 16, 2008
    #3
    Unless it's a Vector image, all images will eventually become blurry when zooming in (the iPhone does stop zooming at a certain point though that might not make some images blurry). There's really no way around that, even if you zoom in using the screen zoom function on a Mac. Text on the other hand is something generated by the browser after interpreting a web site's coding, so it isn't limited to the quality that an image is. That's why when you zoom in on text it will always look somewhat clear.
     
  4. ovrlrd macrumors 65816

    ovrlrd

    Joined:
    Aug 29, 2009
    #4
    This question reminds me of the times in movies or tv shows when they need to find a killer by zooming into a photo.

    "ENHANCE!"

    Sometimes you just can't get more data out of the pixels, nothing you can do.
     
  5. sammich macrumors 601

    sammich

    Joined:
    Sep 26, 2006
    Location:
    Sarcasmville.
    #5
    Text is defined by a series of curves and whatnot. So a computer can continually zoom in cos it knows what shape it is.

    An image is defined as a series of coloured dots in a grid. The computer has no idea what it looks beyond how detailed those dots are.
     

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