Chemical Photoshop for Emulating Film and 100 year old processes

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SUMMARY

The discussion centers on the revival of the Autochrome photography technique, which utilizes a two-layer glass structure comprising an RGB screen and a black-and-white emulsion to capture color photographs. Mustafa Umut Sarac emphasizes the importance of understanding dye curves and black-and-white film characteristics to develop a software tool that emulates this process. The suggestion is made to create a custom Photoshop plug-in using Adobe's plug-in API to facilitate this emulation, drawing parallels to existing filters like "Sepia".

PREREQUISITES
  • Understanding of Autochrome photography techniques
  • Knowledge of RGB color theory and black-and-white film properties
  • Familiarity with Adobe Photoshop and its plug-in architecture
  • Basic chemistry knowledge related to photographic dyes and emulsions
NEXT STEPS
  • Research Adobe Photoshop plug-in development using the Adobe API
  • Study the chemical properties and curves of photographic dyes
  • Explore the characteristics of black-and-white panchromatic film
  • Investigate existing software solutions for emulating historical photographic processes
USEFUL FOR

Photographers, software developers interested in image processing, and anyone looking to recreate historical photographic techniques through modern technology.

Mustafa Umut
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Autochrome is a photography technique which all details forgotten 50 years ago but counted as the best color photograph technique.

There are two layers on glass , one RGB Screen and second , a bw emulsion. When RGB filter separates the image , bw all color sensitive layer records the tones. Than all developed and you can see whatever RGB filter and bw emulsion recorded as color photograph.

I worked on subject and learned the dye numbers , their ratios and bw panchro film details.

The important thing is to know the curves of these dyes and curves of bw film.

I thoght if I could learn many chemicals and emulsion sensitizers spectrums , I could make a photo engineer software. every curve would tell the colors and their ratios and emulsion sensitizers would result as process emulating software.

What do you advise ?

Thank you ,

Mustafa Umut Sarac

Istanbul
 
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A custom photoshop plug-in could probably do that. You should look at the Adobe website for their plug-in API.

This is vaguely akin to "Sepia" filters only a bit more sophisticated.