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Distorts when zooming - Adobe Photoshop Elements

Tim, Do you mean in fiction shows, where someone in-charge says to the computer operator "Zoom in on that. Make it clearer"? If only... Byron...

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  1. #1

    Default Re: Distorts when zooming

    Tim,

    Do you mean in fiction shows, where someone in-charge says to the computer operator "Zoom in on that. Make it clearer"?

    If only...

    Byron
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    Byron Gale Guest

  2. #2

    Default Re: Distorts when zooming

    In article <1dea4a17.-1WebX.la2eafNXanI>, Tim Robertson
    <trobertson1cinci.rr.com> wrote:
    > Got a rookie question from someone who is trying to understand all I know
    > about pixels and resolution. When zooming or enlarging, a certain amount of
    > distortion takes place. I have seen software on TV programs that can enhance
    > pictures and remove this distortion. Is this a fantasy thing or is this
    > something that can be done with Elements?
    If a picture is, say, 1000 by 1000 pixels and is displayed on your
    screen at full size ('Actual pixels' in the view menu) then each pixel
    in the window corresponds to one pixel in the picture. If you now zoom
    in further so that the picture is displayed at 200% then each pixel in
    the picture is displayed as a block of 2x2 pixels on the screen. At
    400% it's displayed as 4x4 pixels on the screen. I guess this is what
    you mean by 'distorted'. When you zoom in there are no more pixels left
    in the picture so Elements simply prints each one more than once.

    There's nothing you can do about this. There is no more information in
    the picture. All graphics applications behave this way. However, if you
    want to permanently make the picture larger you can resize it instead.
    If you do this then although Elements will attempt to invent new pixels
    to fill in the gaps. It will do this by examining the pixels
    surrounding each pixel and make up something in between. For example,
    if you have two adjacent real pixels one of which is 100% red and the
    other of which is 50% red then Elements might, reasonably, invent a new
    pixel to put in between them which is 75% red.

    These new pixels are pure inventions and there are a number of
    different systems for working them out but they still remain pure
    inventions. The resized image will look a lot better than simply
    zooming in but it will not look anything like as good as if you had
    taken the picture with more pixels in it in the first place.

    Zoom and resize are there for different purposes. Zoom is an editing
    tool for when you might want a better view of the pixels in the
    picture. If you're editing the picture at the pixel level you want to
    know what is really there not what might be there.

    Hope this helps.
    Peter Gaunt Guest

  3. #3

    Default Re: Distorts when zooming

    Thanks Peter. I understood that and it helped.
    Tim Robertson Guest

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