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a utility for separating images for screen printing

Project description

# ColorSep
A utility for separating a single png (such as one produced by an [inkscape]( export) into
separate per-color images such as might be useful for silk screen printing at a place like

## Features
The current feature set includes:
- separation into a specifiable number colors
- a "near pixel threshold" option for fuzzily matching colors that are close but not exactly what's expected
- a "white base" option to produce a white pixel under all active pixels of any color
- a specifiable alpha threshold beneath which all pixels will be discarded

## Requirements
Colorsep probably requires python 3. I'll gladly accept PRs to fix this and/or assertions to the contrary. I just
haven't tested it.

## Install
It should be as simple as `pip install colorsep` for python-friendly folks.

## Basic usage
To generate the images I needed to make my t-shirt, I ran this:
```colorsep --input resources/farm_scene.png --output-base output/output_ --num-colors=7 --base-white --near-pixel-threshold=100```

To get help:
$ colorsep --help
Usage: colorsep [OPTIONS]

--input TEXT input png
--output-base TEXT base name of output pngs
--alpha-threshold INTEGER on/off threshold for alpha
--num-colors TEXT use to set number of output colors
--base-white should all color be underlaid with white?
--near-pixel-threshold INTEGER tolerance for nearest-color computation
--help Show this message and exit.

Project details

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