How to Reduce Noise in Photoshop



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How to Reduce Noise in Photoshop

The best way to reduce noise in an image is to shoot with a low ISO in camera. The camera creates an exposure based on three values – ISO, Aperture, and Shutter Speed. ISO is the only variable that will result in noise. Ideally, one would adjust the shutter speed and aperture (to let in enough light to create an exposure) at a low ISO to prevent image noise.

The best ISO settings to use for lower noise levels are 100, 200, 400 and 800. Anything above that is likely to create noise on the image. Cameras are getting better all the time, and there will come a day when ISO 6400 looks perfectly clean, but until then, keep ISO as low as possible!

Reduce Noise Filter

The first step in removing noise in your image is to use the ‘Reduce Noise Filter’. In the ‘Reduce Noise Dialog’ one can control strength, preserve details, reduce color noise, and sharpen details. The strength of the filter determines how much it reduces noise – go as high as you need to remove noise, but don’t over-do it. Bringing the ‘Reduce Noise’ lower will make the filter more effective, but will also reduce detail in the image – find the balance that works best.

If there is a lot of color noise, use the ‘Reduce Color’ noise option to remove it. Also, there is an option in ‘Advanced Settings’ to reduce noise on each color channel individually. ‘Sharpen Details’ will add artificial sharpening to your image after the ‘Reduce Noise’ filter is added, so it’s best to keep this at zero.

Using the Surface Blur to Reduce Noise

If there is still noise after the ‘Reduce Noise’ filter is used, adding a Surface Blur may help. The key to using a Surface Blur to reduce noise in photos is to balance the radius and threshold. If the threshold is too low, the image will not be effected. Threshold controls where the blur will stop. It uses differences in tone to find edges, and tries to preserve those edges. The higher the threshold, the more separate elements in the image will blur into each other. The Blur radius determines the area that will be blurred – the larger the radius, the more blur.

It’s best to bring both of these values as high as possible without destroying image details.

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source

Fahad Hameed

Fahad Hashmi is one of the known Software Engineer and blogger likes to blog about design resources. He is passionate about collecting the awe-inspiring design tools, to help designers.He blogs only for Designers & Photographers.

44 thoughts on “How to Reduce Noise in Photoshop

  • August 29, 2017 at 9:22 pm
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    Ahhh once again Phlearn saves me. Love the "in conclusion" stuff at the end too! Very helpful for when I forget part of the process and I just need a quick skim through! Keep up the good work.

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  • August 29, 2017 at 9:22 pm
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    Thank you Thank You!!, question? Do I have to do this for each picture after I do one? Or after one can it do a batch save all?

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  • August 29, 2017 at 9:22 pm
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    Mr. Phlearn your tutorial was awesome and very helpful. Very informative, easy to follow and fun to watch! Please continue to make more! They are truly a blessing! Pray all is well! grace and Peace!

    Reply
  • August 29, 2017 at 9:22 pm
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    where's before and after? i was waiting for that the whole vid aaron

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  • August 29, 2017 at 9:22 pm
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    thank you for the video I was really struggling with noise for a wedding I shot with horrible lighting

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  • August 29, 2017 at 9:22 pm
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    ALTERNATIVE FACTS: theres a lot of noise on that photo because it was shot in a concert not because of the camera.

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  • August 29, 2017 at 9:22 pm
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    Wow….this video just helped me clean up many of my photos. Thanks very much for posting! Thank you Aaron Nace…..another informative video to help us wannabe's :0)

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  • August 29, 2017 at 9:22 pm
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    Yessss! shot a birthday party last minute and some of the photos have noise in it. Thank you!!!! New subbie.

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  • August 29, 2017 at 9:22 pm
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    Threshold: Outer stopping points (prob do that first)
    Radius: How much of the effect you want (do that second)
    find the key balance for the best result!

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  • August 29, 2017 at 9:22 pm
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    My Canon 60D is terrible for noise so I try not to go above 200 to 250. But I've been shooting a tank display today and it was very overcast. I was using quite a high apature, around f8 to f11, so I had to use high ISOs, 1600 at one point. So thanks for this, I'm going to give it a try now,

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  • August 29, 2017 at 9:22 pm
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    I had 2 wedding images of a mother facing her daughter pulling on the veil and had to shoot it in such low light that I just couldn't get rid of the noise no matter what!!!! You just SAVED my wedding! (I tried LR too) I'm always telling folks about your channel…and I watch all your videos….their the BEST!!!!!

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  • August 29, 2017 at 9:22 pm
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    Thank you the tutorial. I used it to a photo, that I made on a concert with the singer 🙂

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  • August 29, 2017 at 9:22 pm
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    The best noise filter I've found is Topaz DeNoise. Takes a lot of the leg work out of cleaning up an image without removing a ton of detail. Well worth a look.

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  • August 29, 2017 at 9:22 pm
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    Unfortunately didn't help me at all 🙁 the noise I have doesn't look like little dots to begin with, just smudges, and the surface blur just made it worse 🙁 I don't know what to do anymore, the healing brushes kind of work, but I don't have that kind of time to go over the whole image, can anyone help with the issue of having smudge-like noise?

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  • August 29, 2017 at 9:22 pm
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    Hi could you please do a tutorial on how to make a JPEG, JPG, picture or photo in definite 100% 1080p HD on photoshop please. Thank you, and the thing that I'm trying to figure out is that when you zoom in and zoom in of the picture you see some little blur or noise that I'm trying to know how to remove it and make seriously but I mean REALLY AND REALLY HD.

    Reply
  • August 29, 2017 at 9:22 pm
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    HI EVERYONE! I own a canon t5i and use the kit lens (18-55mm) and a 50mm f1.8. I almost always shoot at Iso 100 or 200 (manual mode) but my image still has noise. they are never crisp and clear! what am I doing wrong? PLEASE HELP

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  • August 29, 2017 at 9:22 pm
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    Why don't you just use the camera raw filter??? the result would be better and quicker….

    Reply

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