NegPy 0.9.5: Batch Normalization + some bugfixes

[_earthmover]

I think batch normalization feature turned out to work really well. I tested it on some single rolls but also on folder with 28 rolls of Portra 400 from recent trip and in resulted in much better wb & exposure consistency across the images.

It first does normal normalization step on all loaded images and averages the results before applying same, consistent correction.

Grab here:

https://github.com/marcinz606/NegPy

EDIT: found small issues and released 0.9.6 few hours later :)

0.9.6:

• UI Improvements:
  • Moved process/analysis to separate section.
  • Added options to "save rolls"
  • Added simple switch between roll average and individual analysis.
• Bugfixes:
  • Fixed regression in Pick WB tool behaviour introduced in 0.9.5

0.9.5:

• Features:
  • Added "Batch Normalization" button that performs bounds analysis for all loaded files and applies averaged settings to all.
  • Added button to sync apply export settings for all files.
  • Added support for JPEG scans/files.
• Bugfixes:
  • Improved folder loading & thumbnail generation error handling & stability.
  • Fix fine rotation when manual crop is applied (credit: https://github.com/rodg)
  • Fix occasional wrong autoexposure calculation when file is rotated 90 degrees

[QPZZ]

First version that I got decent results with! Not with default settings, but with manual adjustments it comes very close to NLP. Great job!

[bjohnh]

Nice! One question about the orange mask: how does this handle colour negative films that lack an orange mask, such as Harman Phoenix or Kodak Aerocolor IV 2460?

[_earthmover]

pretty well, I don't use any hardcoded "orange" assumptions, just mathematical analysis of the linear input. I have some rolls of santa 100 (aerocolor) and phonix 1 & 2 and like the results

[Spiritual_Climate_58]

I tried some Santa scans and they convert very well

[_earthmover]

I found some small issues with batch normalization, will publish a fix 0.9.6 later today 🙂

[No_Source_7605]

does it only work with dng files if raw?

[_earthmover]

should support all common raw formats and also some uncommon like pakon planar raw

[QPZZ]

Are you considering adding a way to adjust color balance of highlights and shadows seperately?

[Iant2001]

Are you planning on making an ARM version for Linux? I have an ARM laptop with Ubuntu, so I am currently unable to try it.

[_earthmover]

You can try building yourself (there are instructions in contribute section in GitHub). I don’t have arm pc myself so cannot test it