Is there a way to automatically set the curves to the edge of clipping?

This is for manual inversion of film negatives.*

Process:

  1. White balance against film base
  2. Crop as desired
  3. Invert the RGB curve
  4. For each of the R, G, and B curves, set them to the edge of clipping
  5. Then export as a TIF for further edits

Is there a way to speed up/automate step 4? The shadow and highlight clip preview on the histogram helps

ToneCurve

*The negatives are camera scanned with a narrowband RGB light. Manual inversion gives better results than tools like Negative Lab Pro because such tools assume the scan used a wideband high CRI white LED light. NLP will support narrowband RGB, but that day will come after the standalone release.

Welcome to the DxO USER Forum, Joel …

Unfortunately, the quick answer is; no.

Thank you John. That’s unfortunate but not the end of the world. If DxO Photolab supported plugins, I would try to make something that did this!

Try smart lighting. Not quite what you want, but still worth trying.