[darktable-user] Re: [darktable-dev] Resources for beginners / newcomers

2020-07-26 Thread KOVÁCS István
Dear All, (I had sent this to the developers' list by accident, but as Bruce has pointed out, it should be here, on the users' list. My apologies.) There have been a number of questions from newcomers, which is, on one hand, great (means user base of darktable is growing), but it also means that

Re: [darktable-user] Camera calibration profiles

2020-07-27 Thread KOVÁCS István
On Mon, 27 Jul 2020, 19:04 Mikael Ståldal, wrote: > I have some (binary) DCP files from Lightroom. Is it possible to use > them in Darktable somehow? > DCP files are not supported, I think. You can extract the colour matrix into an ICC, and put it in the input profiles directory (I'm not at my

Re: [darktable-user] Filmic RGB and colors

2020-07-28 Thread KOVÁCS István
Hi, On Tue, 28 Jul 2020, 07:17 Jan Ingwer Baer, wrote: > I am a little bit confused about Filmic RGB and the handling of colors: > > On many/most of my pictures using filmic rgb with the default value for > 'preserve chrominance' (= 'RGB power norm') makes the colors very flat. > After

Re: [darktable-user] Presets act like 'postsets' - so what am I doing wrong?

2020-07-20 Thread KOVÁCS István
Hi, On Mon, 20 Jul 2020 at 11:27, tony Hamilton wrote: > DT: 3.0.2 > [...] Conversion does take place when I open the darkroom Darktable will apply the preset just fine: if you open it, you'll see it's there. If you try to export it without ever opening the image in the darkroom, your preset

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-11 Thread KOVÁCS István
I usually only filter chroma noise. I find that denoise (profiled) can suppress it very effectively, leaving fine-grained luma noise behind. I've exported my preset, you can grab it here if you like: https://tech.kovacs-telekes.org/files/denoiseprofile_wavelet chroma.dtpreset You can import it

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-11 Thread KOVÁCS István
Sorry, the URL was broken. Here it is: https://tech.kovacs-telekes.org/files/denoiseprofile_wavelet%20chroma.dtpreset darktable user mailing list to unsubscribe send a mail to

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-11 Thread KOVÁCS István
On Mon, 11 Jan 2021 at 21:04, Terry Pinfold wrote: > > I went to the link and I saw a bunch of text. How do I copy and save that as > a preset to install? Right-click, Save as..., or simply copy the text that you see in the browser into a file called any-name.dtpreset, or in Firefox press

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-11 Thread KOVÁCS István
I'm glad you find it useful. I read somewhere or saw a video that said you could play with the noise reduction applied at the different detail levels, but you really had to raise the strength for the settings to be effective (it may have been this video from rawfiner, one of the developers, but I

Re: [darktable-user] perspective correction

2021-01-12 Thread KOVÁCS István
If this used to work better, please raise an issue (but first check if one already exists). https://github.com/darktable-org/darktable/issues/ darktable user mailing list to unsubscribe send a mail to

Re: [darktable-user] dt 3.2.1 freezes on every import, probably user error; how to correct?

2020-11-29 Thread KOVÁCS István
On Sun, 29 Nov 2020 at 17:35, tony Hamilton wrote: > > Not sure that I fully understand 'run from the command-line' I merely meant starting a shell, and using the 'darktable' command there to launch the application, hoping that you'd get some error message printed there when darktable freezes. I

Re: [darktable-user] Partially black thumbnails in lighttable view

2020-12-08 Thread KOVÁCS István
On Tue, 8 Dec 2020 at 13:30, Ludger Bolmerg wrote: > unfortunately the workaround is not applicable for me as I am not using > "basic adjustments". > But thanks a lot anyway. I will continue to look for common edits when the > problem occurs. The good news is that 3.4 is to be published at

Re: [darktable-user] Leaving a module to conplete an operation?

2020-12-09 Thread KOVÁCS István
I really don't understand this confusion. (Apart from the fact that some people did not seem to realise that 'perspective correction' is a separate module, different from the keystone adjustment in the crop module.) In all the modules, the effects of the current setting are visible immediately;

Re: [darktable-user] dt 3.2.1 freezes on every import, probably user error; how to correct?

2020-11-29 Thread KOVÁCS István
On Sun, 29 Nov 2020 at 10:27, tony Hamilton wrote: > For the past few weeks I have noticed that dt .3.2.1 freezes towards the > end of the import process When run from the command-line, do you see any errors? Do you use OpenCL? If yes, which card and driver? What operating system? Kofa

Re: [darktable-user] What happened here?

2020-12-24 Thread KOVÁCS István
Hi, On Thu, 24 Dec 2020 at 18:55, Niranjan Rao wrote: > Exported image is dark. It looks like darktable preview is not matching > with exported image. What happened here? Check the export settings (lighttable, between the 'export selected' heading and the 'export' button) - does it apply any

Re: [darktable-user] 3.4 is out -- PLEASE read the announcement / what's new / manual before asking

2020-12-27 Thread KOVÁCS István
Hello, On Sun, 27 Dec 2020 at 12:11, Peter Fischer wrote: > our request to your site was to have an entity with a pulse contact us. I'm not one of darktable's developers; I'm just a user 'entity with a pulse' trying to help other user 'entities'. So darktable.or g is not 'my site', or 'our

[darktable-user] 3.4 is out -- PLEASE read the announcement / what's new / manual before asking

2020-12-27 Thread KOVÁCS István
Dear All, We're all happy that 3.4 is out. People are giving it a spin -- and are baffled when something is different than in previous versions. Rather than asking on this list immediately, please read the announcements and new materials. Neither the disappearance of 'favourites', nor the

Re: [darktable-user] Where should my monitor ICC profile be stored in Linux?

2020-11-09 Thread KOVÁCS István
On Mon, 9 Nov 2020 at 17:26, tony Hamilton wrote: > Running Linux Mint 20 and dt 3.2.1. Hovering the mouse over the 'input > color profile' module, 'input profile' parameter (currently set to > 'embedded ICC profile') produces help/guidance information: "ICC > profiles in

Re: [darktable-user] darktable + OpenCL

2020-11-08 Thread KOVÁCS István
On Sun, 8 Nov 2020 at 07:48, Remco Viëtor wrote: > > KOVÁCS István wrote: > > > It has been reported that a new driver, compatible with kernel 5.9, is > > > available. > > > https://discuss.pixls.us/t/linux-and-darktable/21113/6 > > > > This is wrong

Re: [darktable-user] Where should my monitor ICC profile be stored in Linux?

2020-11-11 Thread KOVÁCS István
On Tue, 10 Nov 2020 at 18:55, tony Hamilton wrote: > > Much of what you explain is well beyond my pay grade, especially as I > still do not understand how to tell dt where my icc profile is You don't. You tell Linux where your profile is, as Guillermo said. Then, applications simply ask the

Re: [darktable-user] darktable + OpenCL

2020-11-07 Thread KOVÁCS István
On Sat, 7 Nov 2020 at 12:34, Michael Rasmussen wrote: > Until Nvidia releases a solution your only option is to use the 5.8 > kernel It has been reported that a new driver, compatible with kernel 5.9, is available. https://discuss.pixls.us/t/linux-and-darktable/21113/6 Kofa

Re: [darktable-user] DT 3.4 tone curve

2020-12-31 Thread KOVÁCS István
On Wed, 30 Dec 2020 at 12:19, Ulrich vor dem Esche wrote: > Hey everyone, super glad that darktable exists! Just installed 3.4 on > Windows 10, funnily the tone curve is not visible, i see an empty grey > space. Just a guess: it could be a conflict between your operating system's colour theme

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-04 Thread KOVÁCS István
On Tue, 5 Jan 2021 at 00:18, Tanya Riseman wrote: > You are supposed to use the tone equalizer module instead of the zone system > module now. According to the manual, zone system is deprecated. > > The zone system is pretty easy for beginners to pick up. > The tone equalizer is much harder to

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-05 Thread KOVÁCS István
On Tue, 5 Jan 2021 at 19:40, Juan Navarro wrote: > > On Mon, Jan 4, 2021 at 10:00 PM KOVÁCS István wrote: >> >> [...] To replicate the same behaviour, you don't >> need the mask: select the 'simple tone curve' preset from the tone >> equalizer (this disables

Re: [darktable-user] Strange import behaviour

2021-01-05 Thread KOVÁCS István
On Tue, 5 Jan 2021 at 09:57, Andrew Greig wrote: > I have recently upgraded to DT3.4.0, when importing a folder of RAW > files from my RAW files directory I now find unwanted images from other > folders intruding on the Lighttable view I'm not sure I understand. In the lighttable, on the left,

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-09 Thread KOVÁCS István
On Tue, 5 Jan 2021, 23:45 Terry Pinfold, wrote: > *"The developers should keep the zone system in my opinion."* > > I was also surprised to see some noise reduction modules have disappeared > https://www.darktable.org/2020/12/darktable-3-4/ Renamed Modules The following modules have been

Re: [darktable-user] Problems importing jpg-images

2021-01-16 Thread KOVÁCS István
On Sat, 16 Jan 2021 at 00:36, Thomas Schweikle wrote: > Importing jpeg-images gives color-failures within these images. Red-, yellow- > or blueish. Any config to change to import jpegs without color-failures? Please provide the info Patrick has requested. Also, if you're on 3.4, do you use the

Re: [darktable-user] Best way to tag image from command line?

2021-01-16 Thread KOVÁCS István
You may not need to tag them. Try this: On the lighttable, using the 'collect images' module => 'hamburger' (presets) menu -> portrait, landscape, or square. Those are just predefined filters using metadata -> capture details -> aspect ratio (less than, greater than or equal to 1). I'm on the

Re: [darktable-user] Best way to tag image from command line?

2021-01-16 Thread KOVÁCS István
On Sat, 16 Jan 2021 at 21:29, Terry Pinfold wrote: >> I am using windows 10 with V3.4 and do not see any of the mentioned >> presets in lighttable. As long as the aspect ratios are there, you can create the presets. Kofa

Re: [darktable-user] Best way to tag image from command line?

2021-01-17 Thread KOVÁCS István
I have the impression some of the data that is not searchable is perhaps not even in the database. Terry, I think you could raise specific feature requests for what you miss. darktable user mailing list to unsubscribe

Re: [darktable-user] Best way to tag image from command line?

2021-01-17 Thread KOVÁCS István
https://www.darktable.org/usermanual/en/module-reference/utility-modules/shared/collect-images/#available-filtering-attributes https://tech.kovacs-telekes.org/files/2021-01-18-darktable-filtering/Screenshot_20210118_075244-1.png Are you aware of the hierarchy under tag / darktable?

Re: [darktable-user] Best way to tag image from command line?

2021-01-17 Thread KOVÁCS István
I don't think direct SQL search would be a good idea, it could even be dangerous (a malicious user may send a seemingly helpful SQL snippet that wipes the user's database). https://xkcd.com/327/ Also, I don't think it's needed/worthwhile: - The query builder (collect images module) in darktable

Re: [darktable-user] Best way to tag image from command line?

2021-01-18 Thread KOVÁCS István
All this SQL magic makes sense only if the database actually stores those fields. Are you sure they're there? Wouldn't it be better to ask for new fields to be added, and then handled through the UI filter builder? What feature are you missing from the query builder itself? Because if none, then

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-13 Thread KOVÁCS István
On Wed, 13 Jan 2021 at 00:46, Terry Pinfold wrote: > > BTW, is there any way to change the default option for this module to my new > preset? You can save a new preset (or edit an existing one), and check the 'auto apply to matching images'.

Re: [darktable-user] Camera / lens not found

2021-01-13 Thread KOVÁCS István
On Wed, 13 Jan 2021 at 19:49, Jean-Luc CECCOLI wrote: > Self-replying : /usr/share/lensfun/version_1 was not up to date (53 files / > 1.9 MB against 55 files / 3+ MB on my w10 machine). > Copying the folder from my w10 machine solved the problem. > As this happens on both my 2 Ubuntu machines, I

Re: [darktable-user] Best way to tag image from command line?

2021-01-18 Thread KOVÁCS István
> I was looking for portrait images. I could not find a way to do it in > UI. Darktable is aware of image orientation, but it's not accessible in > UI as far as I know. You're right, there's no way to filter based on the camera's rotation sensor. But we do have something better, that takes

Re: [darktable-user] Which documentation to use?

2021-01-18 Thread KOVÁCS István
On Tue, 19 Jan 2021 at 06:31, Patrick Shanahan wrote: > > * darkta...@911networks.com [01-18-21 23:09]: > > There is: > > > > http://www.darktable.org/usermanual/en/ > > > > and > > > > https://darktable.gitlab.io/doc/en/index.html > > > > are they the same? Which one should I use? > > if you

Re: Fwd: Fwd: [darktable-user] Where are Collections stored?

2021-01-18 Thread KOVÁCS István
You can simply put the 'alias' commands Patrick provided in your .bashrc. https://linuxize.com/post/how-to-create-bash-aliases/ darktable user mailing list to unsubscribe send a mail to

Re: [darktable-user] Importing from camera

2021-01-02 Thread KOVÁCS István
On Fri, 1 Jan 2021 at 20:27, Willy Williams wrote: > > When you open lighttable, you'll see an "import" function top left directly > under the darktable logo. > Click on "import and you'll see two possibilities; "image..." and > "folder...". Assuming that > you're looking for a folder on your

Re: [darktable-user] Finding out images based on orientation

2021-01-02 Thread KOVÁCS István
On Fri, 1 Jan 2021 at 22:15, Niranjan Rao wrote: > Wondering if there is a way to see images in landscape or portrait mode. > I looked at "Collect images" module and metadata but did not see > anything obvious. Collect images -> capture details -> aspect ratio I don't know any more direct way.

Re: [darktable-user] DT 3.4 no longer has zone system module (gone!)

2021-01-05 Thread KOVÁCS István
You could join discuss.pixls.us if you haven't done so, and post a photo at https://discuss.pixls.us/c/processing/playraw/30, where others can (and will) develop it in different ways. Many of the developers are also active on pixls.us. Kofa

Re: [darktable-user] Strange import behaviour - resolved

2021-01-05 Thread KOVÁCS István
So, it is my understanding that you physically remove images without removing them from darktable's database. In that case, you're inviting trouble. When you're done (exported everything etc.), you should select the images and click 'Remove' (not 'Delete'!!!). Removing them before moving the files

Re: [darktable-user] Watermark and Framing removal

2021-02-02 Thread KOVÁCS István
On Tue, 2 Feb 2021 at 06:46, Andrew Greig wrote: > > Hi All, > > I have 450 images which I Watermarked and Framed in Darktable [...] > Now I want to generate some full size jpg images without Watermark or Framing. Try this: - open any image (a throw-away image will do) - turn on watermark on -

Re: [darktable-user] Rawtherapee seems to be sharper than Darktable, doesn't it?

2021-02-02 Thread KOVÁCS István
The darktable image is darker. Perceived sharpness also depends on contrast. RawTherapee can apply a bunch of tricks (capture sharpening, dual demosaicing) that darktable cannot do (dual demosaicing is on the master branch, though). I see some CA in the darktable JPG that I don't see on the one

Re: [darktable-user] Question regarding exporting images

2021-05-22 Thread KOVÁCS István
On Sat, 22 May 2021 at 21:28, Willy Williams wrote: > I can find no reference to being able > to export images while down-sizing them to a specific maximum file size > (in MB, not pixels). Does this capability exist at all? No, since in JPEG (I guess you're referring to JPEG, but the same also

Re: [darktable-user] exporting to Tiff

2021-07-01 Thread KOVÁCS István
Hello, You may want to try signing up on discuss.pixls.us, which is now the recommended way to interact with the community, including the developers. https://www.darktable.org/contact/ mentions the mailing lists as 'last resort'. Make sure all your applications are properly colour managed.

Re: [darktable-user] Applying sidecars

2021-07-08 Thread KOVÁCS István
On Thu, 8 Jul 2021 at 20:52, Niranjan Rao wrote: > > darktable version 3.4.1 3.6 is now out, give it a spin if you can! > I'm struggling with applying the sidecars - xmp files. Guillermo has already answered that, but there's a non-trivial feature (documented, but not realised by many):

Re: Presets setting too many parameters, sometimes (was: [darktable-user] Activating the pipeline)

2021-05-05 Thread KOVÁCS István
On Wed, 5 May 2021 at 13:33, Patrick Shanahan wrote: > > > > * Michael Staats [05-04-21 08:51]: > > >> Hi > > >> FYI: Just opened feature request #8861 > > >> > > >> "Smart Presets": More flexible presets: only set some parameters of a > > >> module > > > > > > can you not do that already by

Re: [darktable-user] How to set opacity to 100% in retouch module

2021-02-10 Thread KOVÁCS István
Shut down darktable. Open your config file (~/.config/darktable/darktablerc). Look for 'opacity' and 'density'. plugins/darkroom/masks/opacity=1.00 plugins/darkroom/masks/brush/density=1.00 plugins/darkroom/spots/brush_density=1.00 I think the last of those is what you're looking for;

Re: [darktable-user] Issue with trashing images

2021-03-23 Thread KOVÁCS István
Please create an issue, include screenshots. https://github.com/darktable-org/darktable/issues darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org

Re: [darktable-user] Help needed with Canon CR2 pictures

2021-04-01 Thread KOVÁCS István
Since the OP said it mainly affects the shadows, are you sure it's because of highlight clipping? darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org

[darktable-user] Re: [darktable-dev] News about darktable 3.6

2021-04-01 Thread KOVÁCS István
I think you forgot to mention the automated parameterisation of filmic and tone equaliser, and the AI-powered selection of the chroma-preservation mode. darktable user mailing list to unsubscribe send a mail to

Re: [darktable-user] Thumbnail without original files

2021-04-03 Thread KOVÁCS István
You may want to keep 'recent' (WIP) images as 'local copies'. https://www.darktable.org/usermanual/en/overview/sidecar-files/local-copies/ darktable user mailing list to unsubscribe send a mail to

Re: [darktable-user] .jpg file verifier

2021-04-03 Thread KOVÁCS István
One way to 'verify' the data is to decode the file. The following command will try to convert the JPG into PNM, but will not actually write the output file. If an error occurs, it'll be printed. E.g. for an intentionally corrupted file: kofa@eagle:~$ convert /tmp/test.jpg -format pnm - >/dev/null

Re: [darktable-user] .jpg file verifier

2021-04-04 Thread KOVÁCS István
You can display info like exposure data (ISO, exposure time, aperture) using any EXIF-aware tool. Is that what you need? 'verify' is a bit vague. exiftool, exiv2 (both work with any image that has EXIF headers, e.g. raw files as well) e.g. $ exiv2 2021-02-25_15-47-24_P1050894.JPG File name

[darktable-user] Re: latest update (for Dave Stephens)

2021-03-03 Thread KOVÁCS István
Dear Dave, Please stop spamming the list and asking the question over and over again, hijacking discussion threads. The reason you're not getting a reply is because you do not provide any details. I don't think anyone here knows what 'enclosed unchecked boxes' you're referring to. Are you on

Re: [darktable-user] Internal browser

2021-02-28 Thread KOVÁCS István
RawTherapee and ART (and I think Photoflow also) work without importing. Filmulator imports images, just like darktable. If you don't want a database with darktable, it's doable: you can set the library to be in-memory (it'll start empty every time). You can simply open images with darktable

Re: [darktable-user] Dark photos when printed

2021-03-06 Thread KOVÁCS István
On Sat, 6 Mar 2021 at 18:00, Niranjan Rao wrote: > > On 3/6/21 8:12 AM, KOVÁCS István wrote:' > > BTW, are you really in 2.4.1, or was that a typo, and you're, in fact, on > > 3.4.1? > > It's a typo correct version as shown by darktable is 3.4.1 Good. :) Please keep th

Re: [darktable-user] Dark photos when printed

2021-03-06 Thread KOVÁCS István
When you develop your photos, if you use a dark darktable theme, they will appear brighter than when printed (or shown on a lighter background). Plus, now we have an option to provide a more consistent viewing experience. You can read here:

Re: [darktable-user] lighttable view responsiveness

2021-02-24 Thread KOVÁCS István
On Wed, 24 Feb 2021 at 11:35, Willi Fritz wrote: > We would appreciate guidance on achieving reasonable responsiveness during > initial screening > of photos after importing them into darktable, i.e. the time it takes until > thumbnails are displayed > (1) when opening a folder for the first

Re: [darktable-user] darktable darkens by default?

2021-02-24 Thread KOVÁCS István
Which version of darktable, what camera, which workflow (display-referred , using the base curve, or scene-referred, using filmic -- see https://www.darktable.org/usermanual/en/preferences-settings/processing/)? If using the scene-referred workflow, Fuji cameras are known to require more

Re: [darktable-user] Newbie

2021-04-08 Thread KOVÁCS István
On Thu, 8 Apr 2021 at 19:43, Guillermo Rozas wrote: > it seems the X100V is not currently supported: > https://www.darktable.org/resources/camera-support/. > In the same page you will find the instructions on how to add support for it. I think the development version can process X100V files,

Re: [darktable-user] Still no GUI module order possible?

2021-02-15 Thread KOVÁCS István
On Mon, 15 Feb 2021 at 20:37, Urs Schütz wrote: > @kneops > My two cents: > Darktable pipelines work from bottom to top. [...] > The developers choosed "from bottom to top" I think it may be reasonable to add an option to flip the visual order (so not completely free reordering, just a boolean

Re: [darktable-user] style with multiple instances of module

2021-02-17 Thread KOVÁCS István
My issue (https://github.com/darktable-org/darktable/issues/7655) occurred with images processed with an older version of darktable ('it was an issue related to new pipe order introduced in 3.0 and completely fixed in 3.2.1 by @TurboGit. Anyway, already affected XMP with multiple instances (so all

Re: [darktable-user] style with multiple instances of module

2021-02-16 Thread KOVÁCS István
Might be related to https://github.com/darktable-org/darktable/issues/7655, though that's about copying and pasting. darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org

Re: [darktable-user] How to permanently remove highlight reconstruction from the default stack? (3.5)

2021-02-19 Thread KOVÁCS István
I think that it is possible that the module produces wrong results for you because your camera's white point is set wrong in darktable's source code. What camera do you use? Do you make use of 'extended ISO' modes or camera dynamic range management features? I have seen cases where such 'extended

Re: [darktable-user] Still no GUI module order possible?

2021-02-19 Thread KOVÁCS István
On Fri, 19 Feb 2021 at 15:29, Terry Pinfold wrote: > I am really impressed with Rawttherapee but the lack of localised adjustments > is a huge negative for me. Then check out https://rawpedia.rawtherapee.com/Local_Adjustments And also the ART fork, which supports drawn and parametric masks:

Re: [darktable-user] How to permanently remove highlight reconstruction from the default stack? (3.5)

2021-02-19 Thread KOVÁCS István
On Fri, 19 Feb 2021 at 12:24, Joerg Lippmann wrote: > > Am Fr., 19. Feb. 2021 um 12:00 Uhr schrieb KOVÁCS István > : >> >> I think that it is possible that the module produces wrong results for >> you because your camera's white point is set wrong in darktable's >&g

Re: [darktable-user] How to permanently remove highlight reconstruction from the default stack? (3.5)

2021-02-18 Thread KOVÁCS István
Turn it off, save as a preset, set the preset to auto-apply. But maybe first try the 'recover in LCh' mode first, it works reasonably well. You can also save that as a preset if you like the results. darktable user

Re: [darktable-user] Tone Equalizer, Mask

2021-02-18 Thread KOVÁCS István
Tone EQ allows you to apply different exposure compensations to different parts of the image. You can achieve a similar effect by creating several instances of exposure, e.g. one without a mask, so set overall brightness; one with +1EV to lift the shadows, with a parametric mask; and one with -1

Re: [darktable-user] Exporting edited image

2021-07-17 Thread KOVÁCS István
Hi, On Sat, 17 Jul 2021 at 04:01, 01myphotos01 <01myphoto...@gmail.com> wrote: > I worked further on an edited image and exported it. The re-edited image does > not get saved and shows as a black image only. Some modules may produce negative pixel values, and some code (especially

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