ICC and DCP support

[ghost]

Hello,

Would it be possible to specify which ICC profile and/or DCP is to be included in the converted DNG ?
That would be very useful for archival purposes.

Thank you

[cytrinox]

This should be possible to implement but as embedded DCP profiles are not wide supported by FOSS software, I've not priorize DCP support at all. Could you please describe your workflow and/or benefits from having a embedded DCP profile and what target software you use?

[iiborg]

DNG files are open for interpretation, and thus DNG doesn't provide stable rendering.

[ghost]

DNG files are open for interpretation, and thus DNG doesn't provide stable rendering.

That's actually a good thing. A TIFF is "too cooked" meaning that the treatment artefacts are baked in.

In Cultural Heritage having the DCP embedded would permit to have only 1 file.
The included profile should also be used when the DNG is opened by any viewer ?

[iiborg]

If you are not concerned with stable rendering, and for archival purposes, why not preserve the original raw instead of a derivative?

Both DNG and DCP standards are fluid, better DCPs are always around the corner, and if one isn't concerned with stable rendering, embedding obsolete DCPs is a recipe for colour artifacts (blue turns purple and vice versa, red turns orange, unnatural greens, metameric errors, etc)

PS. Smart Objects allow as many trips to ACR as needed because they allow to include raw data. Layered TIFFs are fully editable, with the right workflow no artifacts are baked in.

[ghost]

Well original raw files are proprietary and that's a big no in terms of data preservation. So having an open raw format is a huge advantage.

Now it's not perfect by all means ! It's also smaller than TIFFs files.

Both DNG and DCP standards are fluid, better DCPs are always around the corner, and if one isn't concerned with stable rendering, embedding obsolete DCPs is a recipe for colour artifacts (blue turns purple and vice versa, red turns orange, unnatural greens, metameric errors, etc)

Shouldn't the DNG / DCP version information take care of that ?

And I'm not familiar with Smart Objects but I guess they're not open ?

[ghost]

Btw. Adobe Camera Raw does include the DCP in the DNG, but that's not FOSS.

[iiborg]

Please take your time to study the subject.

[ghost]

What FOSS do you recommend to work with Smart Objects ?