The color calibration module includes several presets for B&W (Fuji, Ilford…)
Independently the t3mujinpack also includes several presets for B&W (Agfa, Kodak…).
The t3mujinpack B&W presets are available as a style.
I’d like to have have those presets in the color calibration module presets. i.e., when I choose the tab for presets in the color calibration module I’d like to see what’s there currently and those B&W presets from the t3mujinpack B&W set.
The t3 styles for B&W film emulation involves at least two modules: channel mix, tone curve.
I therefore can’t have them show up under the color calibration presets.
[I shall close this thread as the issue is resolved.] [Turns out there’s no way to ‘close’ a thread…]
Todd: that link takes me to a page with a number of png (LUT) files.
I’m not familiar with LUT files.
Clicking on each opens up a tab in my browser…and then I don’t know what to do next.
Is there a zip file that I can download, unzip, and get the png files? (I did something equivalent for the .dtstyle files). The README only covers the styles and seems to not cover the LUTs.
And once I have a folder of the png files do I load them up with the 3D LUT module in darkroom?
You specify the location of the folder in preferences… I forget which tab off the cuff maybe processing tab… but poke through them and then you will find it…
There used to be the need to also point to GMIC I think but maybe that is automated now on an install…
Then you can just select and apply the lut for that look if it works for your workflow…
There can be some nuances to the position of the LUT depending on the type and the purpose but the ones you are looking at are for a look so the default spot should be okay
Best to apply it to a well exposed basic or neutral image to see what you get first before doing too much editing…
Steven, Todd: first, I appreciate your response and clarification on what I should do.
So, I did as you suggested. I right clicked on the links, chose “Save Link As”, and thus downloaded about 7 LUTs into a folder. The LUTS are all Microsoft Edge HTML docs. In dt, I set the LUT 3D root folder in preferences to the folder containing the downloaded LUTS. With an abundance of caution I restarted darktable., brought up an image, went into darkroom, brought up the LUT 3D module. So far so good…
In the LUT 3D module:
a) I expected to find the LUTS in the right most tab (with three horizontal lines). They were not there.
b) I hover on the “folder” icon within the module. It says “Select a png, cube…”. I click on it. Up pops a “Select LUT file” dialog box for the folder containing the downloaded LUTS (which I had set in preferences). I don’t see those downloaded LUTS and thus can’t select one. I choose “All files” in the dialog box and thereby see the files I downloaded.
c) Selecting one of them has no impact on the image.
My guess: the files I downloaded are not LUTS. Opening one of them in Windows brings up the Edge browser with the (static) image of the GitHub page with the name of the LUT.
Should just click on the link and download?? If it doesn’t initiate then I think you should be able to right click now and then save file not save link
You can for a site like this also just go to the code button and download all the files as a zip file …then just extract and pick and choose what you want…
Yes, I have that. Were I to click on Code and download Zip, I get the dtstyles content.
The zip has a haldcluts folder but its contents upon download are empty.
At the higher level, before the download, if I click on haldcluts folder it shows the various png files within the folder. I can’t download them (in zip or png file) however.
If you click on each file (I open in a new tab), do you see a preview? If so, there should be a “Download” button above the preview that opens the image in the browser, and I can then save that image via the right-click menu. That works for me, other options give me an invalid PNG file. (I’m using Firefox 110, that might be relevant.)
Yes, I tried that option too: click on each png file, see a preview, click on Download.
Clicking on Download however shows me the contents of my Download folder (which included the previously downloaded zip files) but doesn’t download (what I expected and you say works for you): the individual png file.
My browser is Chrome.
Maybe I should try the same in Firefox…(though, technically, it shouldn’t make a difference).
Its the naming I think… the | character is used to create categories as you can with styles etc… if you rename those out of the file names you can work with them… So I cloned the project and renamed them… this will kill the categories but here they are… t3mujinpack Haldcluts.zip (56.8 MB)
Todd, you got it right, I downloaded your zip file, unpacked, copied over the png files, and can confirm–with delight–the LUT 3D module is able to pick up the pngs.
Thank you, I appreciate your help very much.
I’m also relieved that I’ve reached a stage where a problem I ran into was not of my own making! No guarantees I can remain in that zone…for sooner or later I will come up with ‘operator errors’ that are all of my own making…until, then, thank you and Steven and others who responded to this post!
I hope you find them of some use. It would be interesting to see how they compare to the associated style. There are a few sources of fuji luts and DT styles out there again I am not sure which ones are useful as I don’t make much use of them. I did at one point find a lut posted here by a member for Astia … it was actually quite nice in some cases…
Much easier to integrate a LUT into a Style I created: all I had to do was add the LUT 3D module to the Style, activate it if necessary, point it to the LUT folder, and test the various LUTS (as if they are presets in a module) and see how they impact the image…
Integrating a Style into my Style…ends up complicating things and putting me outside my small zone of competency…
Question: for every image, upon activation of the LUT 3D module I have select a file (in my folder of pngs) and then flip through the other pngs. Is there a way I can set the LUT 3D module so it automatically selects the folder of pngs (which I have also set in my Preferences)? that way upon activation of the module I’d have the list of pngs (much as I have presets in color calibration, color balance rgb, etc.)
