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Thread: How to save a noisy pic?

  1. #1
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    Default How to save a noisy pic?

    Hi guys,

    I have a couple of noisy pic taken with ISO800 (forgot to reset after a delibrate shot of ISO800 pic).

    How can PS help? Please adivse....

    Thank you!

  2. #2

    Default Re: How to save a noisy pic?

    Run thru some noise reduction software...

  3. #3
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    Default Re: How to save a noisy pic?

    Noise Ninja or Neat Image will do a good job at reducing noise, or you can try this:

    In PS, turn the pic to Lab colour > select channel A > Then Gaussian Blur untill all the dots have gone (can be like 4-8 usually) then > Select channel B and apply the same amount (ctrl-f) > Then change back to RGB and save.

    Reduces noise if done well, but may not be as noticable as noiseninja or neat image

  4. #4
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    Default Re: How to save a noisy pic?

    Quote Originally Posted by lastboltnut
    Hi guys,

    I have a couple of noisy pic taken with ISO800 (forgot to reset after a delibrate shot of ISO800 pic).

    How can PS help? Please adivse....

    Thank you!
    You're luck. At my cousin's wedding dinner I forgot to reset my ISO to auto and it was stuck at ISO3200.

  5. #5

    Default Re: How to save a noisy pic?

    Quote Originally Posted by smtan24
    You're luck. At my cousin's wedding dinner I forgot to reset my ISO to auto and it was stuck at ISO3200.
    i hope you're not the main photographer. maybe can salvage your pics by converting to B/W - well artistic

  6. #6
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    Default Re: How to save a noisy pic?

    Quote Originally Posted by jopel
    i hope you're not the main photographer. maybe can salvage your pics by converting to B/W - well artistic
    Just taking for fun only. But the noise at ISO3200 is quite bad. I think this is the case for most cameras. When you print it out it's not so bad and my parents seem to think it's acceptable.

  7. #7
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    Default Re: How to save a noisy pic?

    Thanks barracuda.

    Quote Originally Posted by barracuda
    Run thru some noise reduction software...

  8. #8
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    Default Re: How to save a noisy pic?

    Thanks wildstallion,

    I will try the PS method first.....btw, are the Noise Ninja and Neat Image freeware?

    Thanks again.

    Quote Originally Posted by wildstallion
    Noise Ninja or Neat Image will do a good job at reducing noise, or you can try this:

    In PS, turn the pic to Lab colour > select channel A > Then Gaussian Blur untill all the dots have gone (can be like 4-8 usually) then > Select channel B and apply the same amount (ctrl-f) > Then change back to RGB and save.

    Reduces noise if done well, but may not be as noticable as noiseninja or neat image

  9. #9
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    Default Re: How to save a noisy pic?

    O, I am so sorry to hear that.....may be you can try the above method....

    Quote Originally Posted by smtan24
    You're luck. At my cousin's wedding dinner I forgot to reset my ISO to auto and it was stuck at ISO3200.

  10. #10
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    Default Re: How to save a noisy pic?

    O yeah!! BW is a good idea!! I will try it also! Never think of that
    Thanks

    Quote Originally Posted by jopel
    i hope you're not the main photographer. maybe can salvage your pics by converting to B/W - well artistic

  11. #11
    Member smtan24's Avatar
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    Default Re: How to save a noisy pic?

    lastboltnut good luck with your photos.

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    Default Re: How to save a noisy pic?

    Quote Originally Posted by lastboltnut
    Thanks wildstallion,

    I will try the PS method first.....btw, are the Noise Ninja and Neat Image freeware?

    Thanks again.
    No problem, you can get a free trial of neat image, but its not very good. You have to pay for both, but its a very good investment.

  13. #13

    Default Re: How to save a noisy pic?

    Quote Originally Posted by lastboltnut
    Thanks wildstallion,

    I will try the PS method first.....btw, are the Noise Ninja and Neat Image freeware?

    Thanks again.
    You can try noiseware. There is a community edition of the software which is free. There are some limitations of the free version, but good enough for general purpose noise reduction.

  14. #14
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    Default Re: How to save a noisy pic?

    Thank you all for your help!

  15. #15

    Default Re: How to save a noisy pic?

    if all else fails...convert to b&w and add more noise

  16. #16

    Default Re: How to save a noisy pic?

    Quote Originally Posted by lastboltnut
    Thanks wildstallion,

    I will try the PS method first.....btw, are the Noise Ninja and Neat Image freeware?

    Thanks again.
    Neat Image is freeware is its kinda not bad la.. try it to view the difference

  17. #17

    Default Re: How to save a noisy pic?

    I've tried noise ninja, it's not bad.

    But for certain areas you might want to some manual work, such blurring or brushing.

  18. #18

    Default Re: How to save a noisy pic?

    Quote Originally Posted by wildstallion
    In PS, turn the pic to Lab colour > select channel A > Then Gaussian Blur untill all the dots have gone (can be like 4-8 usually) then > Select channel B and apply the same amount (ctrl-f) > Then change back to RGB and save.

    Reduces noise if done well, but may not be as noticable as noiseninja or neat image
    Where did you learn of this method?

    I once briefly heard from someone about using a similar method (convert to Lab colour) to do sharpening without causing JPEG jaggies or artifacts.

  19. #19

    Default Re: How to save a noisy pic?

    Quote Originally Posted by Jemapela
    Where did you learn of this method?

    I once briefly heard from someone about using a similar method (convert to Lab colour) to do sharpening without causing JPEG jaggies or artifacts.
    This method is mentioned in Scott Kelby's "The Photoshop CS2 Book for Digital Photographers". It has been around for a many years, long before noise reduction softwares such as Noise Ninja or Grain Surgery.

  20. #20

    Default Re: How to save a noisy pic?

    Quote Originally Posted by madmacs
    if all else fails...convert to b&w and add more noise
    deadpoet
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