Exports going to wrong profile 4.4.2

Perhaps it’s only a setting that I am missing? Trying to export to profoto and the result is not what I expected.

Imported RAW shows correct settings for input and output profiles.

Exported Tiff shows wrong profile.

What are the settings in the export module… you might be overriding what you set with output

I wouldn’t change the working profile for the raw file unless you know exactly what you’re doing.

Todd the settings are shown in the first image

Sorry I was on my phone… I usually have it set to the output I want and then just leave it at image settings… If I then want to change I change it in one place ie the export… you have set both the same so I think it should work… What if you open it say in GIMP same issue the wrong profile??

The same thing happens if I pick “image settings”

In PS it loads as profoto as it should. I don’t use Gimp.

Okay I see its the loading back into DT you have an issue with??

I just exported a NEF file with the output settings as I normally would srgb and then overrode that with the export setting of linear prophoto and it appears that is is the colorspace embedded…

So it appears that the exports are going to Gimp and PS properly. When the tiff is loaded into DT the in and out are not showing up correctly.

For me it shows as embedded ie the input profile and if you hover on that it tells you what profile. It seems correct for the few I exported with different profiles…

image

I feel like its working okay…

Here is my test but I as always can be wrong… you take the same photo… export with a profile 3 times… once as linear rec2020 once linear prophoto and once srgb. Then you open them in DT…They all look the same color managed to your display. Hovering over the embedded profile confirms that profile used for export is the correct one in each case or at least reported so by Dt… Now manually change the input profile for each image to the one that matches the embedded one that you created it with. You will see no change in the image which makes sense as that is the correct profile. Now if on the other hand you change the input profile to srgb for all of them… The first two will get dark as now they are color mapped with the wrong profile and the third which was exported to srgb will look fine… so to me in this instance the color management is working…

You are most likely correct. I just didn’t understand, when I opened the tiff in DT, why the profiles showed to be different from the exported ones I set. It was what appeared to be a lack of consistency that was confusing me.

Is this something that should be addressed even if the loaded profile is correct, but not showing so?

That’s just it - the one you set at export time gets embedded in the TIFF file, and darktable uses exactly that one.

Yes, indeed it does. Only it doesn’t show up that way when loaded into DT. It doesn’t matter really. @priort saw it and understands what I was saying.

It does: “embedded”.

I think you are also looking at the output profile setting to be carried along with your export…this is a feature of your raw edit. If you change it then it will stay at what you have changed it to in DT for this file. When you come back to that image in darkroom it will have that setting change maintained, but if you export that as a tiff and load it you are going to see srgb in the output profile… This is the DT default for new files… THe output profile is not an intrinsic property of the exported file only the embedded icc is. If you want that to always be prophoto then you simply need to change it in the output file and create an auto preset for that… Basically there are 2 paths to output/export your file… use what you set in that output profile and specify export to use the image settings ie the current output profile or simply leave the output profile set to its default ie srgb and then when you export be sure to change it to what you want ie prophoto or whatever in the export dialogue… DT is loading them correctly…that was what I was trying to show you …they load as embedded profile and if you hover on that you can display what that embedded profile is… I could be wrong but I think you are working the output profile into your thinking in an altered way…again I could be wrong or misunderstanding your dilemma.

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When I set my RAW as input>Linear ProFoto RGB and the output>ProPhoto, I was expecting to see those profiles when I loaded the exported Tiff into the darkroom. When I saw the tiff loaded as input>Linear REC2020 RGB and output>sRBG, it confused me.

I understand that the embedded profile in the Tiff was in fact ProFoto. I proved that by loading it into PS where I could confirm it.

I just think that the tiff should display the same profiles as the RAW when loaded back into the Darkroom. Unless of course there is some reason why it cannot or should not be that way. If for any reason this is true, then please explain it to me, so I can better understand.

Why do you think that?

Because for someone like myself, who is new to DT and might no be aware of certain conditions within DT, might think that the tiff file was exported into the wrong color space.

So your input profile for your raw would not normally be prophoto…it would be the camera specific profile or matrix to convert the camera space. THen you set a working profile…this is the profile that the pipeline works in… usually wide… THe default is rec2020 but it could be prophoto… THen you have 3 other profiles… display output and histogram… you could add a fourth ie export but really that is just a selection to use a different output for the exported file… Display is obvious it should be the driver for your monitor or if you can a calibrated icc file. Histogram is the profile that you use to decide what color space your histogram will be plotted in and what values you will see for the colorpicker… Finally the output profile is the profile used at the end of the pipeline to finalize the data… THe setting there will be what gets embedded and what will become the input profile for the exported file… The output profile has no meaning for that exported file. DT imports it back in as a new file and applies the default output profile setting… that is the general flow. To have what you are expecting there would either have to be a standard tag for that or a setting in DT to match default output profile to the input profile for non raw files… But for now easy enough…change the default for output or simpler just make an export preset for your Tiff files that makes all the selections as you want…if you re-export your tiff it has the right profile embedded so I am not 100% clear why it needs a specific matching output profile… There probably could be one less profile in the mix I think Aurelien has dumped the use of a histogram profile in his fork

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