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Changing a LQ pic to a HQ pic

Discussion in 'Photoshop' started by pixelfairy, Aug 19, 2006.

  1. #1
    Hi, I was wondering if there is a way to change a very low and grainy quality picture to a high quality, or at least clearer picture when the picture is Low quality to begin with (is there a way to do it with photoshop?) and could someone explain the steps to doing it?

    An example would be like in the movies, where researchers look at a low quality picture of someone on a security cam, and can clear the picture up in a second. Is that even possible??
    Thanks!
    SEMrush
     
    pixelfairy, Aug 19, 2006 IP
    SEMrush
  2. T0PS3O

    T0PS3O Feel Good PLC

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    #2
    Look for the sharpen functions or the JPEG Artifacts remover. At least that's what it's called in Paint Shop Pro.
     
    T0PS3O, Aug 19, 2006 IP
  3. pixelfairy

    pixelfairy Peon

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    #3
    is there anything else you can do? Because after I sharpen the image about 3 or 4 times it starts to look really grainy. thanks again :)
     
    pixelfairy, Aug 19, 2006 IP
  4. aeronautic.net

    aeronautic.net Active Member

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    #4
    Hi, most of what you see in movies regarding turning a blur into a sharp image of a suspect and such is pure fiction.

    If you are starting out with a small, poor quality source file, there is no way I know of to change it into a large, clear picture.

    You can go high/large > low/small but not low/small > high/large.

    I'm a professional photographer (see www.aeronauticpictures.com) and my old (soon to be re-launched) stock photo section has viewable images no larger than 468 pixels @ 72 dpi - they are big enough to get a sense of the quality for a client but not large enough to use in a full page magazine ad or billboard. They could be used on a website too, of course, but that's also easier to catch.

    Hope this helps!
     
    aeronautic.net, Aug 19, 2006 IP
  5. T0PS3O

    T0PS3O Feel Good PLC

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    #5
    Correct. Besides a bit of touching up there's no way of reversing compression. The data is permanently lost.
     
    T0PS3O, Aug 19, 2006 IP
  6. pixelfairy

    pixelfairy Peon

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    #6
    Oh, I see. It looks so real in all of the movies lol. Thank you both for your help :)
     
    pixelfairy, Aug 19, 2006 IP
  7. aeronautic.net

    aeronautic.net Active Member

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    #7
    You are most welcome, of course. Wish I could have shared the secret!

    ;)
     
    aeronautic.net, Aug 19, 2006 IP
  8. alterego85

    alterego85 Peon

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    #8
    Never trust anything that you see in the movies.. :)
     
    alterego85, Aug 22, 2006 IP
  9. rudyw7@gmail.com

    rudyw7@gmail.com Peon

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    #9
    To increase the size, just click Image -> Image Size
    To make image brighter, Image -> Adjusment -> Level or
    Image -> Adjusment -> Exposure, just move the slider as needed.

    You may learn some usefull tips here http://rudyw7.blogspot.com/

    Go on practice...
     
    rudyw7@gmail.com, Oct 6, 2009 IP