DXO Pure Raw & Topaz Raw Ai Denoise Workflow for Raw Therapee and Darktable Users.

00:34:25
https://www.youtube.com/watch?v=cSbVs-W5B7o

摘要

TLDRIn this video, the creator delves into the nuances of AI raw denoising as opposed to traditional denoising techniques. AI raw denoising is presented as a superior method, applied at the start of an editing workflow, notably enhancing image quality over traditional noise reduction methods. The discussion highlights the limitations faced by users of programs like RawTherapee and Darktable, which, although effective, do not match the results achievable with AI-driven solutions like those from DXO and Topaz. The creator also explores the functionality and file compatibility issues experienced with these tools, particularly with Topaz and its DNG file format in Darktable. Demonstrations and comparisons between outputs from various software, including DXO and Topaz, show the potential of AI raw denoising in handling high ISO photographs. The video concludes with advice for Linux users on integrating these advanced denoising tools into their workflows.

心得

  • 🎉 AI raw denoising offers superior results compared to traditional techniques.
  • ⚡ Applying denoising at the start of the workflow improves image quality.
  • 🔧 RawTherapee and Darktable have limitations in noise reduction compared to AI solutions.
  • 💾 Topaz DNG files face compatibility issues in Darktable.
  • 🖼️ AI denoising is beneficial for processing high ISO images with better detail retention.
  • 📂 Software like DXO and Topaz enhance image editing capabilities.
  • 🎨 Proper denoising tools make managing high ISO noise easier.
  • 🖥️ Linux users face challenges incorporating AI denoising tools.
  • 🚀 Programs are evolving to integrate AI denoising and improve photography editing.
  • 📸 Licensed software provides better integration for advanced editing techniques.

时间轴

  • 00:00:00 - 00:05:00

    The video continues from the previous one, discussing AI raw denoising, which differs from traditional denoising methods. AI raw denoising should be the first step in the workflow. The presenter aims to address issues faced by users of raw therapy and dark table, emphasizing the superiority of AI raw denoising compared to traditional methods in these programs. The focus will be on DxO PureRAW, DeepPRIME XD, and Topaz Photo AI, highlighting recent updates and developments in denoising technologies.

  • 00:05:00 - 00:10:00

    Comparison of different denoising software begins. The presenter explains their settings for DxO PureRAW and Topaz Photo AI, highlighting the differences in how they apply sharpening and denoising. No lens distortion or vignetting corrections are applied. Two example images are processed, with the presenter noting that DxO sharpening may be too aggressive. Viewers can download the example files, including raw and processed versions, to compare on their own systems.

  • 00:10:00 - 00:15:00

    After processing the images, the presenter opens them in raw therapy to compare the results. Topaz images appear slightly less sharpened than DxO's but maintain quality. The difference in noise and detail between the files processed by each software is examined, with some preference for Topaz due to less aggressive sharpening while maintaining detail.

  • 00:15:00 - 00:20:00

    The presenter evaluates how the processed images appear in dark table, noting issues with Topaz DNG files not opening correctly. They highlight the limitations of DNG files from both Topaz and DxO, as they don't allow adjustments in demosaicking and capture sharpening. Emphasis is given on the inability to modify sharpness levels post-processing, unlike Adobe DNG files.

  • 00:20:00 - 00:25:00

    Detailed insights into the editing capabilities of both raw therapy and dark table are provided, showcasing adjustments on the images processed by each software. The presenter notes the limitations in adjusting demosaicking for Topaz DNGs but praises the quality obtained from both software. The potential for further image enhancement using dark table's tools is acknowledged.

  • 00:25:00 - 00:34:25

    Concluding thoughts stress the importance of using AI denoising primarily for exceptionally noisy images, while conventional tools may suffice for images with typical ISO ranges. There's a call for Linux users to consider means of accessing AI tools, given their impact on processing high ISO images. The video ends by reiterating the evolving landscape of AI denoising technologies and their applications.

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思维导图

Mind Map

常见问题

  • What is AI raw denoising?

    AI raw denoising is a modern technique that applies AI algorithms for noise reduction at the beginning of the editing process, providing superior results compared to traditional methods.

  • How does AI raw denoising differ from traditional denoising?

    Unlike traditional denoising, AI raw denoising is applied at the start of the editing process, providing better control over image quality and noise reduction.

  • What are the limitations of using RawTherapee and Darktable for noise reduction?

    Both RawTherapee and Darktable have decent noise reduction features, but they fall short compared to AI-driven noise reduction tools.

  • Why can't Topaz DNG files be opened in Darktable?

    There appears to be a compatibility issue between Topaz DNG files and Darktable, which prevents the files from being opened.

  • What is the advantage of using AI denoising for high ISO images?

    AI denoising offers superior noise reduction for high ISO images, preserving image details and quality better than traditional methods.

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  • 00:00:04
    [Music]
  • 00:00:25
    hi guys welcome back to another video on
  • 00:00:28
    the channel thanks for joining me and in
  • 00:00:31
    this video I want to sort of follow on
  • 00:00:34
    from the previous video I did looking at
  • 00:00:37
    AI raw denoising you've got to
  • 00:00:42
    understand that rodino is in is
  • 00:00:45
    different from the normal denoising that
  • 00:00:50
    we're all used to and we've used for
  • 00:00:52
    years which is sort of one of the last
  • 00:00:55
    things you do in your workflow whereas
  • 00:00:57
    raw D noising is the very first thing
  • 00:01:00
    you do in your workflow that's at least
  • 00:01:02
    the best way of doing it so anyway
  • 00:01:06
    um what I want to do in this video is to
  • 00:01:10
    actually address the problem that people
  • 00:01:13
    who use raw therapy and dark table have
  • 00:01:17
    got because even though the noise
  • 00:01:21
    reduction in both programs is pretty
  • 00:01:23
    good it isn't a pat on what you can do
  • 00:01:27
    with AI raw denoising so what we're
  • 00:01:32
    going to do is look at dxo pure all
  • 00:01:36
    three and topaz not denoise AI because
  • 00:01:40
    they are sort of
  • 00:01:43
    um
  • 00:01:44
    they're not doing a lot with denoise AI
  • 00:01:48
    there was an update to it about three or
  • 00:01:50
    four months ago I think
  • 00:01:52
    and they're putting all their
  • 00:01:55
    development behind photo AI oh which is
  • 00:02:00
    a combination of gigapixel AI sharp and
  • 00:02:04
    Ai and denoise AI
  • 00:02:06
    so it's it's like a multifaceted thing
  • 00:02:10
    and so that's where all the topaz
  • 00:02:13
    developments going so hence we're using
  • 00:02:15
    uh this lady suffering from topaz and
  • 00:02:19
    pitching it against the latest offering
  • 00:02:22
    from dxo relative to people who work in
  • 00:02:27
    rural therapy and dark table so we're
  • 00:02:30
    not going to be looking at anything to
  • 00:02:32
    do with Adobe today apart from the fact
  • 00:02:34
    that we're going to look at an adobe dng
  • 00:02:37
    an undenoised adobe dng
  • 00:02:41
    in comparison to the other two types of
  • 00:02:45
    dng that we're going to get here namely
  • 00:02:48
    the one from DX so the name of the one
  • 00:02:50
    from topaz because they are different
  • 00:02:53
    yes they are okey dokey so how are we
  • 00:02:57
    gonna work this well very simply you can
  • 00:03:00
    see I've got two images queued here and
  • 00:03:04
    the latest version of topaz photo AI uh
  • 00:03:08
    we've got this one of this Gothic which
  • 00:03:11
    you can see with absolutely no denoising
  • 00:03:14
    on it and it's a little bit on the soft
  • 00:03:18
    side as well and yeah if you look at it
  • 00:03:21
    over on the right
  • 00:03:22
    we're allowing uh topaz photo AI to use
  • 00:03:27
    it's autopilot settings
  • 00:03:29
    and you can see I'm only using the uh
  • 00:03:34
    raw D noise
  • 00:03:37
    um or raw remove noise and also pilot
  • 00:03:41
    why is it's coming in it's strong with a
  • 00:03:44
    strength of Two and a detail of 52.
  • 00:03:48
    this detail is what's making it go Sharp
  • 00:03:53
    okay because if I turned the detail off
  • 00:03:57
    um you'll see it's it's pretty much as
  • 00:04:01
    soft as this but it's it is very
  • 00:04:06
    effectively
  • 00:04:08
    um denoised uh just with a strength
  • 00:04:11
    setting of two
  • 00:04:13
    so I'm actually going to put it back
  • 00:04:16
    where it was okay
  • 00:04:19
    um because that's
  • 00:04:21
    I think that's right it was for Nick 52
  • 00:04:23
    if we just go and use autopilot settings
  • 00:04:26
    again yeah yeah that's right so the
  • 00:04:30
    sharpening in topaz under the actual
  • 00:04:34
    denoising not the sharpening I find just
  • 00:04:39
    about perfect
  • 00:04:41
    um we're also going to be processing
  • 00:04:43
    these self same two images in DX so and
  • 00:04:47
    this is all you see in dxo until we get
  • 00:04:52
    process now and so what I'm going to do
  • 00:04:55
    is it process now and we'll come up with
  • 00:04:58
    this process two photos dialog box I'm
  • 00:05:01
    using deep primary XD as the denoising
  • 00:05:06
    and I don't use lens Distortion and I
  • 00:05:10
    don't use vignetting Corrections I've
  • 00:05:13
    actually got both of those turned off in
  • 00:05:16
    topaz as well because the lens
  • 00:05:19
    correction that lenses Distortion
  • 00:05:22
    Corrections and the vignette Corrections
  • 00:05:24
    are not identical
  • 00:05:27
    to what they are in DX so they don't
  • 00:05:30
    share each other's files
  • 00:05:33
    for Distortion and vignetting I am going
  • 00:05:37
    to correct the chromatic aberration
  • 00:05:39
    because topaz correct for chromatic
  • 00:05:42
    aberration as well and so there you go
  • 00:05:45
    but I am not going to sharpen the output
  • 00:05:50
    or go on I think of I might as well but
  • 00:05:54
    if if you see the lens softness
  • 00:05:57
    can either be soft standard strong or
  • 00:06:01
    hard
  • 00:06:02
    okay so with each softy setting I find
  • 00:06:06
    it a little tiny tiny bit on the
  • 00:06:11
    aggressive side and when I use the EXO
  • 00:06:15
    for myself I have it turned off and I
  • 00:06:19
    only correct the chromatic aberration
  • 00:06:21
    but a supposing all fairness I ought to
  • 00:06:25
    have one softness turned on but I'm only
  • 00:06:28
    going to have it set to soft okay output
  • 00:06:33
    format dng
  • 00:06:35
    um going into the original image folder
  • 00:06:38
    so we'll go start processing and as I
  • 00:06:42
    say
  • 00:06:43
    um I'm not going to be happy with the
  • 00:06:45
    sharpening on the DXL one I think it is
  • 00:06:47
    a little tiny bit too aggressive
  • 00:06:51
    um but we'll process these they'll be
  • 00:06:53
    just about done any second and I'm sorry
  • 00:06:57
    the anti-adobe guys but you are going to
  • 00:06:59
    see a flash of that Lightroom now
  • 00:07:01
    because it's all into link with that
  • 00:07:03
    Lightroom on my machine
  • 00:07:05
    so I'm just going to go quit Lightroom
  • 00:07:09
    classic
  • 00:07:10
    quit skip this time okie dokie and there
  • 00:07:16
    we go so and don't worry if you've not
  • 00:07:19
    got these plugins
  • 00:07:22
    um I am going to be supplying all the
  • 00:07:25
    files including the two raw files
  • 00:07:28
    um don't try passing them up on your own
  • 00:07:30
    otherwise I should be most peeves yeah
  • 00:07:35
    um but I'll put a link in the
  • 00:07:37
    description below where you'll be able
  • 00:07:38
    to download the two raw files the two
  • 00:07:41
    deep primary XD files and the tube topaz
  • 00:07:44
    files okie dokie so we'll go processing
  • 00:07:48
    done thank you very much and we'll quit
  • 00:07:50
    pure rule three and so what we'll do now
  • 00:07:54
    is come back to Topaz photo II and you
  • 00:07:57
    can see it's it's doing what it's doing
  • 00:08:00
    here no sharpening detail 52 strength
  • 00:08:04
    two uh we come over to the next shot
  • 00:08:09
    here uh so much time you've possibly
  • 00:08:14
    seen before in another video and raw
  • 00:08:18
    denoising it's coming in it's strong
  • 00:08:20
    again this time strength one and detail
  • 00:08:23
    at 55 and I'm just gonna let it run at
  • 00:08:27
    default and we'll just go save two
  • 00:08:31
    images to the original folder format dng
  • 00:08:35
    if we open up before format drop down
  • 00:08:38
    menu you can see it says preserve input
  • 00:08:41
    format that's just a loading junk yeah
  • 00:08:45
    because he can't write CR2 files and you
  • 00:08:48
    can't write net files it actually
  • 00:08:51
    rewrites dng so why they put that there
  • 00:08:54
    I don't know I'm just going to switch
  • 00:08:57
    out to dng and we will go say and point
  • 00:09:02
    of that and if we want what we'll do is
  • 00:09:03
    we'll we'll do preserve import format
  • 00:09:07
    but you see it's still going to be a dng
  • 00:09:11
    so you know you take your pick don't you
  • 00:09:15
    so we'll click save
  • 00:09:17
    and we'll just wait a second and that
  • 00:09:20
    will be done too
  • 00:09:23
    um then we'll go and open these in raw
  • 00:09:26
    therapy and dark table yeah now the um
  • 00:09:30
    while I'm closing this out the uh guys
  • 00:09:33
    who are on Linux machines who are using
  • 00:09:37
    raw therapy and or dark table and I
  • 00:09:42
    don't quite know how you're gonna pull
  • 00:09:44
    this one off either people who've got
  • 00:09:46
    Linux machines and they've got a Windows
  • 00:09:49
    12 laptop and they are moving images
  • 00:09:54
    over onto the Windows machine and
  • 00:09:58
    denoising them that way and then moving
  • 00:10:00
    them back to the other machine uh but if
  • 00:10:03
    your machine has got enough poke uh in
  • 00:10:07
    terms of CPU power and RAM and disk
  • 00:10:10
    space you could I suppose very easily go
  • 00:10:14
    and put a virtual machine on and that
  • 00:10:16
    run over a Naco ass or or a PC uh
  • 00:10:21
    Windows operating system within the
  • 00:10:23
    virtual machine
  • 00:10:25
    um but I'm just illustrating
  • 00:10:27
    um the quality of this
  • 00:10:29
    um raw Aid noisy and as you will see it
  • 00:10:33
    in raw therapy when viewed in rural
  • 00:10:36
    therapy and when viewed in Dart table
  • 00:10:37
    and as I say all the contents of that
  • 00:10:41
    this folder I will make Available to You
  • 00:10:44
    including the um
  • 00:10:47
    non-denoised dng which is a genuine
  • 00:10:50
    Adobe dng and you'll see the difference
  • 00:10:54
    uh shortly in the dng formats all righty
  • 00:11:00
    that's why I'm supplying this actual
  • 00:11:03
    Adobe dng which is just this original
  • 00:11:06
    raw file here uh run through the Adobe
  • 00:11:10
    dng converter and that's the result so
  • 00:11:13
    everything that's in this folder will be
  • 00:11:15
    made available for anybody to go and
  • 00:11:17
    download off my I think I'll put it on
  • 00:11:19
    my Google Drive but anyway
  • 00:11:22
    and what I'm going to do is Select these
  • 00:11:25
    four Images now so let's select all four
  • 00:11:28
    and then we'll go open with
  • 00:11:31
    and we'll go open with rural therapy
  • 00:11:35
    and there we go and it's uh even brought
  • 00:11:38
    the raw files in as well why I have no
  • 00:11:41
    idea but well so uh there you go because
  • 00:11:45
    it shouldn't have done because it didn't
  • 00:11:46
    tell it to you but hey yo and so you can
  • 00:11:50
    see I've got a raw file
  • 00:11:53
    all right which is I'll take it that one
  • 00:11:56
    uh no that one
  • 00:11:59
    yes there's the raw file
  • 00:12:02
    um we've got the Deep primary XD and the
  • 00:12:06
    topaz denoise D and G did this say e x d
  • 00:12:09
    d n g e mobile I mean there we've got
  • 00:12:13
    the raw file and we've got the Deep
  • 00:12:16
    Prime dng and we've got the uh topaz dng
  • 00:12:22
    and if we'll look at the topaz dng for
  • 00:12:25
    that
  • 00:12:26
    and all I'm going to do is just very
  • 00:12:30
    simply I'm just going to lift up on this
  • 00:12:34
    curve here and we will go into a hundred
  • 00:12:39
    percent and there you go I mean you can
  • 00:12:42
    do what you want with us
  • 00:12:44
    all right I just cannot fault it
  • 00:12:47
    um let's go and
  • 00:12:50
    switch over to the Deep Prime
  • 00:12:54
    there we go one let's go and do roughly
  • 00:12:56
    the same thing to that
  • 00:12:58
    and there you go
  • 00:13:01
    um if if you'll just notice don't forget
  • 00:13:04
    I did say I don't for my own ends I
  • 00:13:08
    don't actually put use the sharpening on
  • 00:13:12
    dxo because I find it just a little bit
  • 00:13:16
    on the aggressive side but we did put it
  • 00:13:20
    on it's soft in other words as low as
  • 00:13:22
    it'll go and if you just notice
  • 00:13:26
    um this is the one that I think is
  • 00:13:29
    slightly too sharp and that's the one
  • 00:13:34
    that I think is just a little bit better
  • 00:13:36
    uh let's just get rid of a little more
  • 00:13:40
    of the lift there we go so I think the
  • 00:13:43
    sharpening on that is absolutely perfect
  • 00:13:47
    and as you can see absolutely no noise
  • 00:13:51
    even if we go in at 800 percent I mean
  • 00:13:54
    it's mental
  • 00:13:56
    you do get one or two little
  • 00:14:00
    um artifacts which you need to touch up
  • 00:14:02
    possibly in or whatever
  • 00:14:05
    um if you were going to print this image
  • 00:14:07
    that sort of you know ate thought
  • 00:14:12
    because those little artifacts will
  • 00:14:15
    print as well so you might need to just
  • 00:14:17
    go around the edges and do a little bit
  • 00:14:18
    of cleanup
  • 00:14:20
    um all with the Deep Prime
  • 00:14:22
    be I just found out just a little bit
  • 00:14:26
    aggressive
  • 00:14:27
    um but you'll notice the artifact on the
  • 00:14:30
    end of the beak is uh a little bit more
  • 00:14:34
    obvious inside the topaz version uh than
  • 00:14:40
    it is in the Deep Prime version and
  • 00:14:43
    actually for image quality IQ I do
  • 00:14:49
    actually find that you know like I say I
  • 00:14:53
    don't usually sharpen in DX so don't let
  • 00:14:57
    any don't do any lens softness
  • 00:14:59
    Corrections and I'll use the
  • 00:15:01
    um sharpening uh usually deconvolution
  • 00:15:04
    sharpening in raw therapy
  • 00:15:08
    um but I do find it just a little bit
  • 00:15:11
    nicer but I mean this is this is
  • 00:15:15
    blooming fine really I suppose and when
  • 00:15:19
    it comes to printing you know you're
  • 00:15:22
    going to put print sharpening on it
  • 00:15:23
    anyway which is going to make it look
  • 00:15:24
    bloody terrible
  • 00:15:26
    um but you know I mean you just couldn't
  • 00:15:29
    pair uh that
  • 00:15:32
    view of that image out of either one of
  • 00:15:36
    these
  • 00:15:37
    uh all with the raw file
  • 00:15:42
    um so I mean it is
  • 00:15:44
    um
  • 00:15:45
    really truly uh quite amazing
  • 00:15:49
    what we're doing here you know and just
  • 00:15:52
    do the same adjustment to the raw file
  • 00:15:54
    and to look at that you know I mean
  • 00:15:58
    there's a lot of noise on that yeah
  • 00:16:00
    there was right 12 800 I think
  • 00:16:03
    if we go to the other shot okay and we
  • 00:16:09
    fundamentally gonna do the same
  • 00:16:11
    operation here I'm just going to come to
  • 00:16:14
    the curve I mean there's dozens of ways
  • 00:16:16
    you can lighten the image up uh as I've
  • 00:16:18
    already shown you especially in rural
  • 00:16:21
    therapy uh
  • 00:16:23
    this is this is where you see more of
  • 00:16:28
    that sharpening this is the uh deep
  • 00:16:32
    Prime and I mean just just where you get
  • 00:16:36
    dark to very light edges in other words
  • 00:16:38
    very high contrast boundaries
  • 00:16:41
    um I'm just a little bit wary I think it
  • 00:16:44
    looks a little bit crispy and if I go to
  • 00:16:49
    the topaz one
  • 00:16:52
    and we just lift that one up I just find
  • 00:16:56
    that not quite as crispy right that
  • 00:16:58
    edges up just a little bit cleaner but
  • 00:17:01
    like I say you can go and download these
  • 00:17:03
    files and just put just put a little
  • 00:17:06
    curves left on them yourself and have a
  • 00:17:08
    plate and see what you think
  • 00:17:11
    all right so that's raw therapy covered
  • 00:17:14
    raw therapy can see absolutely
  • 00:17:17
    everything
  • 00:17:18
    but here's your problem
  • 00:17:20
    uh first off
  • 00:17:22
    with the topaz uh dng
  • 00:17:27
    um we've got no way of changing the
  • 00:17:30
    demosaican algorithm and we haven't got
  • 00:17:34
    access to capture sharpening so this
  • 00:17:36
    level of sharpness we are stuck with
  • 00:17:39
    okay and the thing goes for the
  • 00:17:44
    um topaz uh no the dx01 and we are stuck
  • 00:17:49
    with this level of sharpening
  • 00:17:51
    um because we've got no access to um the
  • 00:17:55
    actual demosaic and the capture
  • 00:17:57
    sharpening however
  • 00:18:00
    if I go to file Brown so
  • 00:18:04
    um do I go to genuine Adobe dng now
  • 00:18:08
    don't forget this is got no noise
  • 00:18:10
    reduction on it at all but this is what
  • 00:18:13
    a dng should be like
  • 00:18:16
    because if you look under the raw tab I
  • 00:18:20
    can go and select any one of the single
  • 00:18:25
    or combination
  • 00:18:27
    um raw demosaican algorithms I can
  • 00:18:31
    change my chromatic aberration settings
  • 00:18:34
    I can choose my raw white points I can
  • 00:18:38
    change my
  • 00:18:39
    um process white balance I can add a
  • 00:18:42
    dart frame I can add a flat field frame
  • 00:18:44
    if it was doing Astro work and I've also
  • 00:18:47
    got access to capture sharpening okie
  • 00:18:51
    dokie so that's what a proper dng looks
  • 00:18:56
    like all right and those are the
  • 00:18:58
    facilities given to you by a proper dng
  • 00:19:00
    the
  • 00:19:03
    um
  • 00:19:03
    dngs that you get out of topaz and DX so
  • 00:19:08
    do not give you access to this all this
  • 00:19:12
    slot is already baked in you cannot
  • 00:19:15
    change it so you need need to be aware
  • 00:19:18
    of that small sort of caveat
  • 00:19:22
    okay so I think I'm just about done with
  • 00:19:25
    raw therapy so I'm going to shut raw
  • 00:19:27
    therapy now and we're going to come back
  • 00:19:31
    to these images again and this time
  • 00:19:33
    we're going to go open with a dark table
  • 00:19:37
    and you're going to have a bit of a
  • 00:19:39
    surprise here
  • 00:19:40
    so and just wait for dark table to fire
  • 00:19:43
    up
  • 00:19:46
    I'm what's with this Space Invaders
  • 00:19:49
    topaz denoise dng is not available
  • 00:19:53
    um
  • 00:19:55
    um do you like Space Invaders yes they
  • 00:19:58
    do
  • 00:19:59
    so for some unknown reason we cannot
  • 00:20:03
    access
  • 00:20:05
    these topaz uh dngs inside of dark table
  • 00:20:12
    um from what I did it's not the first
  • 00:20:14
    time and believe me to believe it or not
  • 00:20:16
    you didn't used to be able to use them
  • 00:20:19
    inside a raw therapy either
  • 00:20:22
    um but that was up till about 18 months
  • 00:20:25
    two years ago raw therapy seems to not
  • 00:20:27
    have a problem with them dark table does
  • 00:20:30
    and if I go back to
  • 00:20:34
    um
  • 00:20:35
    a folder and then I go to add to library
  • 00:20:41
    and we twiddle that and come there and
  • 00:20:45
    say yeah add that one to library which
  • 00:20:48
    is the um
  • 00:20:50
    uh this one which is the Adobe dng uh
  • 00:20:55
    the correct dng if you like we come back
  • 00:20:58
    to what's on if you look at D Mosaic and
  • 00:21:01
    we can gain access to D mosaican and we
  • 00:21:06
    can choose any one of the available
  • 00:21:09
    um demosaic in algorithms inside of
  • 00:21:13
    um dark table
  • 00:21:15
    but if I come back to light table now
  • 00:21:18
    and go back to where this folder here
  • 00:21:24
    um we have a problem and like I say the
  • 00:21:27
    topaz ones we can't open
  • 00:21:30
    and the Deep Prime
  • 00:21:34
    um let's just come back to original and
  • 00:21:38
    um
  • 00:21:38
    what we're going to do first of all well
  • 00:21:42
    if we look at um
  • 00:21:45
    what's on and we haven't actually got uh
  • 00:21:49
    the D Mosaic in tab here and if we can
  • 00:21:53
    find it where is demo taking this is
  • 00:21:55
    another nice thing some people who are
  • 00:21:57
    new to dark table might not know this uh
  • 00:21:59
    we can actually do do a search uh
  • 00:22:03
    demosaican not applicable to this image
  • 00:22:07
    hmm yeah so you can't gain access to uh
  • 00:22:12
    your D Mosaic in algorithms with
  • 00:22:15
    the dxo dngs here
  • 00:22:21
    um which you know but at least we can
  • 00:22:25
    blob him while opening yeah and work on
  • 00:22:28
    them and I suppose all we're going to do
  • 00:22:31
    uh here is just come to the exposure tab
  • 00:22:37
    um turn it on
  • 00:22:39
    um let's lift up the exposure a little
  • 00:22:41
    bit
  • 00:22:42
    okie dokie
  • 00:22:44
    there we go have we got any clipping
  • 00:22:47
    let's go clip the turn the clipping
  • 00:22:49
    indicator on yeah we've got a little bit
  • 00:22:52
    of clipping in there I don't mind the
  • 00:22:54
    clipping in the eyes
  • 00:22:56
    you know we could go and do a shadow we
  • 00:22:58
    just
  • 00:22:59
    um we could go and uh tell you what
  • 00:23:01
    we'll do we'll see um what are we gonna
  • 00:23:04
    do are we going to uh leave exposure on
  • 00:23:07
    or off let's turn it off and let's go to
  • 00:23:09
    local contrast
  • 00:23:11
    um local contrast is usually quite good
  • 00:23:14
    um and turn down the contrast in the
  • 00:23:16
    highlights a little bit turn down the
  • 00:23:19
    contrast in the mid-tones turn down the
  • 00:23:21
    contrast in the shadows
  • 00:23:25
    I don't mind these little bits of uh
  • 00:23:27
    specular clip in here but the only thing
  • 00:23:31
    is what's uh possibly screwing it up is
  • 00:23:34
    the white balance
  • 00:23:37
    um because we're in an asshot
  • 00:23:40
    um default and so I might just go
  • 00:23:44
    Um not necessarily to camera reference
  • 00:23:48
    um I might go from image area and there
  • 00:23:51
    we go so we could do we could take we
  • 00:23:54
    could control the exposure in this
  • 00:23:57
    um in many ways in there light in dark
  • 00:24:00
    table and more more ways that we can
  • 00:24:03
    actually control it inside raw therapy
  • 00:24:06
    um let's go and look at the other dng
  • 00:24:08
    how to fame
  • 00:24:11
    dxo and I'm just going to turn the
  • 00:24:14
    clipping indicator off we don't need it
  • 00:24:16
    turned on and this will probably just go
  • 00:24:19
    under exposure and I'll just turn it up
  • 00:24:23
    to get it where I want it to
  • 00:24:26
    um we can go into where the shadow areas
  • 00:24:29
    look at all the lovely detail in there
  • 00:24:32
    and um up in here and we've got no noise
  • 00:24:37
    in these Shadows we've got a very very
  • 00:24:39
    dark area here and file down hit me out
  • 00:24:44
    key uh no shift key no control key
  • 00:24:48
    that's the one if we look inside this
  • 00:24:51
    very very dark area it's some ludicrous
  • 00:24:54
    1600 mag you can see we've got no noise
  • 00:24:58
    and you know I mean what do you want to
  • 00:25:03
    do for your money uh you know the nice
  • 00:25:08
    thing is we can bring all sorts of tools
  • 00:25:11
    to bear inside of their dark table
  • 00:25:16
    still think it's a little bit crispy
  • 00:25:18
    down here but well never mind and after
  • 00:25:21
    I'm going to go to color and I'm going
  • 00:25:24
    to go and turn on color zones for this
  • 00:25:27
    one I'm going to get a pick and I'm just
  • 00:25:30
    going to pick there the yellow with the
  • 00:25:33
    beak and so under saturation I'm gonna
  • 00:25:37
    wire the saturation up and then on the
  • 00:25:40
    lightness I'm just going to drop it down
  • 00:25:43
    a little bit just to try and preserve
  • 00:25:46
    some detail on that and we'll come back
  • 00:25:49
    to here we've already got um an exposure
  • 00:25:52
    adjustment on there so here's the other
  • 00:25:55
    nice thing about dark table because I
  • 00:26:00
    can then go on generate a new instance
  • 00:26:03
    of
  • 00:26:04
    um the exposure adjustment and I can
  • 00:26:08
    quite simply come in with a drawn mask
  • 00:26:11
    mask and I'm going all Posh now mask
  • 00:26:14
    coming in with a drill mask will use a
  • 00:26:17
    brush and that just it used me scroll
  • 00:26:20
    wheel to drop its size a little bit and
  • 00:26:23
    I'm just going to brighten up round the
  • 00:26:25
    eye and over the eyebrow
  • 00:26:28
    there and then sort of sweep it back and
  • 00:26:31
    come in there rather like that so we
  • 00:26:34
    just put in a little bit of a blob on
  • 00:26:37
    there and just check the mask is the
  • 00:26:40
    right way around yes it is and black and
  • 00:26:43
    white conceals yellow reveals
  • 00:26:46
    really strange but well later and all
  • 00:26:50
    we're going to do is just add all right
  • 00:26:52
    well we're not we're going to come click
  • 00:26:54
    this icon here so we can't see the brush
  • 00:26:57
    path
  • 00:26:58
    and I'm just going to lift the exposure
  • 00:27:01
    there and just a little tiny bit okay
  • 00:27:05
    and then do I want to go and put on a
  • 00:27:08
    local contrast on this one let's turn it
  • 00:27:11
    on and that makes it look a little bit a
  • 00:27:15
    little bit too dark in the dark areas
  • 00:27:17
    for me so I'm going to turn the
  • 00:27:20
    Shadows down and I might actually turn
  • 00:27:25
    the mid-range down a little bit
  • 00:27:28
    and with the highlights up
  • 00:27:32
    or maybe take him down a little bit I
  • 00:27:34
    don't know detail
  • 00:27:36
    just drop that
  • 00:27:39
    um a little smidge uh turn it off turn
  • 00:27:43
    it back on I mean that looks blooming
  • 00:27:46
    marvelous to me you know these little
  • 00:27:49
    nice tools that you've got in Dart table
  • 00:27:52
    um
  • 00:27:53
    you know I mean they can just make some
  • 00:27:57
    great adjustments local adjustments to
  • 00:28:00
    your images and of course if you can
  • 00:28:03
    start off with a total with an image
  • 00:28:05
    because you've got totally no noise in
  • 00:28:08
    it whatsoever
  • 00:28:09
    and it got so much exposure latitude in
  • 00:28:13
    it it just makes you processing life
  • 00:28:16
    just an awful lot easier because
  • 00:28:19
    ordinarily when you're processing these
  • 00:28:22
    iiso uh noisy images you constantly
  • 00:28:26
    being careful about what adjustments you
  • 00:28:30
    make and the amount of adjustment you
  • 00:28:33
    bring to there allow carefully you mask
  • 00:28:36
    things because you're trying to do your
  • 00:28:38
    level best to not exacerbate the noise
  • 00:28:41
    that's already there and then you you're
  • 00:28:44
    actually then going to try and denoise
  • 00:28:46
    the image when you've got it to where
  • 00:28:48
    you want it to be and as soon as I'm
  • 00:28:52
    giving you all these files for free I
  • 00:28:54
    challenge anybody either in Dart table
  • 00:28:57
    or raw therapy to use Dart table or raw
  • 00:29:00
    therapies
  • 00:29:02
    um I'm very good
  • 00:29:06
    a while back uh or like three months ago
  • 00:29:09
    uh noise reduction techniques and if you
  • 00:29:13
    can come within 10 percent
  • 00:29:17
    as good as the noise reduction in these
  • 00:29:21
    images that you've seen me make today
  • 00:29:23
    and don't forget I've been making them
  • 00:29:25
    just with the fundamentally the default
  • 00:29:28
    settings
  • 00:29:29
    um
  • 00:29:30
    then let me know if you if you've got
  • 00:29:34
    any grain in your images
  • 00:29:36
    when you either go at processing these
  • 00:29:38
    uh don't get in touch because I'm just
  • 00:29:42
    not interested but if anybody can
  • 00:29:44
    actually come within 10 percent of this
  • 00:29:47
    level of noise reduction uh with the
  • 00:29:50
    pre-existing noise reduction tools and
  • 00:29:52
    Rural therapy or dark table I would be
  • 00:29:55
    interested to know how the hell they've
  • 00:29:57
    done it and but don't just tell me about
  • 00:29:59
    it show me the result as well otherwise
  • 00:30:02
    I won't believe you no all right guys
  • 00:30:06
    and girls uh that's just about it from
  • 00:30:08
    me today I hope you found that useful
  • 00:30:10
    hope you found it interesting uh Linux
  • 00:30:13
    guys
  • 00:30:14
    um you need to have a serious think
  • 00:30:17
    about how you can get all of this um
  • 00:30:20
    AI technology now at the end of the day
  • 00:30:23
    you let me just say this
  • 00:30:25
    I wouldn't dream of deploying this um AI
  • 00:30:30
    denoising or Raw denoising on my images
  • 00:30:34
    unless they were actually suffering from
  • 00:30:39
    an excess amount of noise
  • 00:30:42
    um anywhere from base ISO to one or two
  • 00:30:47
    thousand I so I just wouldn't use this
  • 00:30:51
    um method of denoising this um Aid noisy
  • 00:30:55
    I'm quite happy with the denoising
  • 00:30:57
    facilities I've got in Lightroom in fact
  • 00:31:00
    in um raw therapy and in Dart table but
  • 00:31:03
    when you start to really push the boat
  • 00:31:07
    out and start crippling your dynamic
  • 00:31:11
    range on your camera because you've got
  • 00:31:13
    like four five six seven stops
  • 00:31:16
    um above base or more
  • 00:31:19
    you're going to have problems and those
  • 00:31:22
    problems are very hard to get hold of or
  • 00:31:25
    get on top of with conventional noise
  • 00:31:28
    reduction and yet they are just a simple
  • 00:31:31
    clickety-click job with this new breed
  • 00:31:36
    of
  • 00:31:38
    um raw Aid noising so uh
  • 00:31:41
    and Linux users you've got you you've
  • 00:31:45
    got to face up to facts you've somehow
  • 00:31:48
    or other if you produce these very high
  • 00:31:51
    ISO noisy images
  • 00:31:55
    um that you find difficult to impossible
  • 00:31:57
    to process onto normal circumstances
  • 00:31:59
    with the normal tools available to you
  • 00:32:01
    you've got to work out how to get
  • 00:32:04
    yourself
  • 00:32:06
    um the ability to work with the likes of
  • 00:32:09
    dxo or um topaz deep prime or pure rule
  • 00:32:14
    three or whatever they call it just
  • 00:32:16
    remember if you're on Dart table
  • 00:32:20
    um the topaz one might be a little bit
  • 00:32:22
    problematic for you and tell pass I
  • 00:32:25
    don't know what it is whether they are
  • 00:32:28
    whether they've got a drunk who actually
  • 00:32:31
    codes their dngs because I can remember
  • 00:32:36
    um topaz denoise Ai and when it first
  • 00:32:40
    came out
  • 00:32:42
    um I've been using raw therapy for a
  • 00:32:45
    while and you could open the images in
  • 00:32:47
    rural therapy and then and they did an
  • 00:32:50
    update to the noise Ai and you saw me
  • 00:32:53
    you couldn't open the images then you
  • 00:32:55
    could then you couldn't then you could
  • 00:32:57
    then you couldn't and it's like I don't
  • 00:33:00
    know I mean well I don't know it's as if
  • 00:33:02
    the guy who does all the coding
  • 00:33:04
    authorities uh either drunk or
  • 00:33:06
    occasionally manic depressive I don't
  • 00:33:08
    know but uh dxo uh just seemed to be
  • 00:33:14
    pretty consistent and I've ever since
  • 00:33:17
    I've been using dxo which are it's only
  • 00:33:20
    this latest copy that I've actually paid
  • 00:33:23
    for uh all the rest I've tried
  • 00:33:27
    um in in each various version guys and
  • 00:33:30
    they always seem to open in dark table
  • 00:33:33
    and they always seem to open in raw
  • 00:33:34
    therapy so there you go
  • 00:33:36
    um I was saying stand raw therapies got
  • 00:33:39
    slight slight versatility to add to it
  • 00:33:43
    because it can open both but the tools
  • 00:33:46
    you have access to inside of dark table
  • 00:33:49
    are somewhat more expansive so well
  • 00:33:53
    there you go anyway I'm waffling on and
  • 00:33:56
    uh so until the next time guys and girls
  • 00:33:58
    stay safe stay well keep taking the
  • 00:34:00
    pictures and I'll see you in the next
  • 00:34:02
    one too
  • 00:34:05
    [Music]
标签
  • AI Denoising
  • RawTherapee
  • Darktable
  • DXO
  • Topaz
  • Noise Reduction
  • ISO
  • Image Editing
  • Photography
  • Software Compatibility