homebrew-negatives

Convert and process your digital film negatives. Bash scripts for MacOS.

Requirements

Make sure to have the Homebrew package manager for MacOS installed. The installation instructions may look weird to first-timers, but it's really done in a minute.

Optional, but recommended: Make this homebrew-negatives tap and its included tools available to your local Homebrew ecosystem. Quoted from Homebrew docs:

brew will be able to work on those formulae as if they were in Homebrew's canonical repository. You can install and uninstall them with brew [un]install, and the formulae are automatically updated when you run brew update.

To install the tap, open your terminal and enter this command:

$ brew tap tomkyle/negatives

Installation

To install all programs, open your terminal and type:

$ brew install linear-tiff positive

Formulae

Moved formulae

These tools have moved to filmspeed/homebrew-filmspeed and are no longer available in this tap:

• tomkyle/negatives/ndeviation is now filmspeed/ndeviation
• tomkyle/negatives/curvefit is now filmspeed/curvefit

Scripts for you

linear-tiff

Converts RAW/NEF/CR2 files into linear TIFF files, using GNU Parallel for maximum speed.
Other features: ICC profiles, image mirroring, B/W grayscaling, TIF resizing and ZIP compression.

Documentation · Usage · Options

# with tap installed:
$ brew install linear-tiff

# ...or without having tap installed:
$ brew install tomkyle/negatives/linear-tiff

positive

Converts digital film negatives (TIFF files) to positive images, using GNU Parallel for timesaving.
Other features: Gamma correction, sigmoidal contrast enhancement, resizing and flipping, JPG conversion.

Documentation · Usage · Options

# with tap installed:
$ brew install positive

# ...or without having tap installed:
$ brew install tomkyle/negatives/positive

Helpers and dependencies

You do not need to install these tools manually, as they are needed by the tools above and thus are installed automatically.

color-profiles

Makes ICC profiles for handling linear TIFF and digital film negatives available.
Both positive and linear-tiff use it as dependency. Documentation

# with tap installed:
$ brew install color-profiles

# ...or without having tap installed:
$ brew install tomkyle/negatives/color-profiles