CODEWITHSUNDEEP
pythonimagecolorspython-imaging-librarypalette
Andrew
Andrew

Reputation:

How to reduce color palette with PIL

I'm not sure how I would go about reducing the color palette of a PIL Image. I would like to reduce an image's palette to the 5 prominent colors found in that image. My overall goal is to do some basic color sampling.

Upvotes: 28

Views: 30035

Answers (3)

Paul
Paul

Reputation: 43680

I assume you want to do something more sophisticated than posterize. "Sampling" as you say, will take some finesse, as the 5 most common colors in the image are likely to be similar to one another. Maybe take a look at the 5 most separated peaks in a histogram.

Upvotes: 5

Nadia Alramli
Nadia Alramli

Reputation: 115011

That's easy, just use the undocumented colors argument:

result = image.convert('P', palette=Image.ADAPTIVE, colors=5)

I'm using Image.ADAPTIVE to avoid dithering

Upvotes: 42

tzot
tzot

Reputation: 96081

The short answer is to use the Image.quantize method. For more info, see: How do I convert any image to a 4-color paletted image using the Python Imaging Library ?

Upvotes: 3

Related Questions