A Python module for extracting colors from images. Get a palette of any picture!
colorgram.py is a Python library that lets you extract colors from images. Compared to other libraries, the colorgram algorithm’s results are more intense.
Time-wise, an extraction of a 512x512 image takes about 0.66s (another popular color extraction library, Color Thief, takes about 1.05s).
You can install colorgram.py with pip, as following:
pip install colorgram.py
How to use
Using colorgram.py is simple. Mainly there’s only one function you’ll need to use - colorgram.extract.
import colorgram # Extract 6 colors from an image. colors = colorgram.extract('sweet_pic.jpg', 6) # colorgram.extract returns Color objects, which let you access # RGB, HSL, and what proportion of the image was that color. first_color = colors rgb = first_color.rgb # e.g. (255, 151, 210) hsl = first_color.hsl # e.g. (230, 255, 203) proportion = first_color.proportion # e.g. 0.34 # RGB and HSL are named tuples, so values can be accessed as properties. # These all work just as well: red = rgb red = rgb.r saturation = hsl saturation = hsl.s
Extract colors from an image. image may be either a path to a file, a file-like object, or a Pillow Image object. The function will return a list of number_of_colors Color objects.
A color extracted from an image. Its properties are:
- Color.rgb - The color represented as a namedtuple of RGB from 0 to 255, e.g. (r=255, g=151, b=210).
- Color.hsl - The color represented as a namedtuple of HSL from 0 to 255, e.g. (h=230, s=255, l=203).
- Color.proportion - The proportion of the image that is in the extracted color from 0 to 1, e.g. 0.34.
Sorting by HSL
Something the original library lets you do is sort the colors you get by HSL. In actuality, though, the colors are only sorted by hue (as of colorgram.js 0.1.5), while saturation and lightness are ignored. To get the corresponding result in colorgram.py, simply do:
colors.sort(key=lambda c: c.hsl.h) # or... sorted(colors, key=lambda c: c.hsl.h)
If you find a bug in the colorgram.py, or if there’s a feature you would like to be added, please open an issue on GitHub.
If you have a question about the library, or if you’d just like to talk about, well, anything, that’s no problem at all. You can reach me in any of these ways:
To get a quick answer, Twitter is your best bet.
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