palette-extractor

This program extracts the dominant color or a representative color palette from an image.

Usage

Here's a simple example, where we build a 5 color palette:

package main

import (
    "os"
    "fmt"
    "image"
    _ "image/gif"
    _ "image/jpeg"
    _ "image/png"

    _ "golang.org/x/image/webp"

    "github.com/BeringLogic/palette-extractor"
)

func main() {
    // opening the image
    file, err := os.Open("image.png"); if err != nil {
        fmt.Println(err)
        return
    }
    defer file.Close()

    // decoding the image
    img, _, err := image.Decode(file); if err != nil {
        fmt.Println(err)
        return
    }

    // Creating the extractor object
    extractor := extractor.NewExtractor(img, 10)

    // Displaying the top 5 dominant colors of the image
    fmt.Println(extractor.GetPalette(5))
}

You can find the complete documentation on GoDoc.

Example

The following image has been used for this example:

The program will give the following output when used with the image above:

[[234 231 230] [208 24 44] [59 41 37] [158 149 145] [145 126 114]]

Thanks

Many thanks to Thomas Bouvier for his palette-extractor, from which this has been forked

Many thanks to Lokesh Dhakar for his original work and Shipeng Feng for his implementation.