Impressive Noise Removal with ON1 NoNoise AI 2021 (Podcast 751)

ON1 NoNoise AI 2021 has found its way into my raw workflow, with very impressive denoise processing and the ability to save the output in DNG format.

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Martin Bailey
Martin Bailey is a nature and wildlife photographer and educator based in Tokyo. He's a pioneering Podcaster and blogger, and an X-Rite Coloratti member.
  • Thysje Arthur
    Posted at 10:53h, 31 August Reply

    That’s very interesting Martin! I used to use ON1 raw some years ago, or rather played around with it, but never took to it, so I was a bit sceptical about the NoNoise AI. It looks good from the demo and what you’ve provided here in your blog. I have experienced noise problems in Milky Way and night time photography and it is frustrating to deal with. What particularly caught my attention was your mention of being able to save a DNG file so it can be further processed in CO. I too prefer tiff or psd as more final files once finished processing. Thank you for this. I will think about it and if I think it’s worth it, I will purchase.

    I enjoy your posts as always!

    – Thysje

    • Martin Bailey
      Posted at 10:49h, 01 September Reply

      Hi Thysje,

      It’s great to hear from you! I gave ON1 Photo Raw a good run for its money a few weeks ago but it was just unrealistically slow. I was hoping to be able to share an alternative to Capture One but it doesn’t even come close. Nothing I tried did.

      Following that, NoNoise AI was surprisingly good, and the DNG output a very nice addition. I’ll be using it when necessary from now on.

      I hope all is well!


  • Jens Gaethje
    Posted at 19:14h, 12 September Reply

    Hello Martin
    Thank you for your continues photography education and podcasts! I recently tried a couple of a high noise reduction and stumbled upon DXO deep prime.
    I meant to write to you, and ask if you have tried it, earlier, and now your latest podcast prompted me to do so!

    What first raised my skepticism, shortly turned into my favorite feature of DXO Pure Raw (Deep Prime): no slider!
    In Lightroom and ACR the images are automatically copied into DNG files, with all develop settings, including local corrections, copied and applied from the original raw file. Noise reduction, lens corrections and sharpness are applied by DXO directly to the DNG file, and the respective settings are turned off in the ACR develop settings, all with one click.

    The resulting Image sharpness, and noise reduction is mind-boggling. I would usually spend several minutes within camera raw to tweak noise and sharpness setting for each image specifically. The one click results from DXO, are better than what I can achieve.

    Last week, I edited a low light, high ISO candlelight concert. and DXO took care of all my noise reduction and sharpening. I could not find need to tweak it.

    I can simply go back to 10 year old raw files, and with one click improve the quality. All edits still applied (ACR)

    I do have a couple of issues of digital artifacts though, that I need to contact DXO for. The DNG files are larger inside than the original raws.

    Here is an article, that compares DX oh deep prime with on one no noise:

    I am very happy, how much this is a headache saver, as it easily integrates into my workflow.
    Maybe you have a look at it. I’m neither sponsored not affiliated, just happy how it works for my pictures.

    All the best from Canada, Jens

    PS I’m curious: Are the OnOne DNGs larger than your original raws as well?

  • Martin Bailey
    Posted at 18:29h, 15 September Reply

    Hi Jens,

    Thanks for the great comment!

    I have recently tried DXO, and was generally not very impressed with the speed/performance. I don’t recall stumbling across anything called Deep Prime though, and you certainly make it sound interesting, so I’ll check it out again in the coming week. Thanks for the pointer!

    Regarding file size, yes, the DNG files are significantly larger than my original raw files. The Milky Way shot in the post is 37.6MB in raw and 111MB in DNG format, so it’s tripled in size! I honestly hadn’t really thought to look until you mentioned this. I don’t convert many files, so it’s not a big deal, but if you find out why this is from DXO please let me know.


  • Jens Gaethje
    Posted at 13:02h, 24 January Reply

    Hi Martin

    I found the reason for the additional file size of both the On1 No Noise and DXO Prime files.

    In the process of calculating the noise reduction (and sharpness respectively) the RAW files are being de-mosaiced. This means the previously single coloured pixels (r,g OR b) from the camera sensor data are turned into pixels containing 3 colour values each(r,g AND b) – resulting in files of about 3 times the size which are saved in a format called “linear DNG”.

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