Filmulator is a RAW photo editor with an integrated image library. Its distinctive processing model simulates some of the behaviour of photographic film development rather than exposing a large collection of independent image-processing modules.
The filmulation process compresses large bright regions, increases local contrast around smaller bright areas and changes the treatment of colour and saturation in highlights. The design deliberately favours a smaller number of focused controls rather than maximum configurability.
Alongside image development, Filmulator provides importing, organisation, ratings, a processing queue and culling facilities. Recent development has expanded the processing side with noise reduction and improved handling of strongly saturated highlights.
This is free and open source software.
Key Features
- Film-development-inspired processing model for controlling dynamic range, local contrast and colour.
- Noise reduction integrated into the RAW development workflow.
- Highlight Crosstalk provides controlled desaturation of extremely bright saturated colours.
- RAW histogram helps assess exposure before the main processing pipeline.
- In-pipeline histograms show brightness distribution at different stages of processing.
- Lensfun-based correction for distortion, vignetting and chromatic aberration.
- Highlight recovery, shadow rolloff and monochrome conversion with a channel mixer.
- Custom white balance with the ability to retain manually selected white-balance parameters.
- Crop, rotation and interactive levelling tools for image geometry.
- Integrated library, rating filters and processing queue support importing, organising and culling photographs.
Website: github.com/CarVac/filmulator-gui
Support:
Developer: Omer Mano and Carlo Vaccari
License: GNU General Public License v3.0

Filmulator is written in C++. Learn C++ with our recommended free books and free tutorials.
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