README
¶
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 (
"fmt"
"github.com/thomas-bouvier/palette-extractor"
)
func main() {
// Creating the extractor object
extractor := extractor.NewExtractor("image.png", 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 Lokesh Dhakar for his original work and Shipeng Feng for his implementation.
Documentation
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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type Extractor ¶
type Extractor struct {
// contains filtered or unexported fields
}
Extractor represents the color palette extractor instance associated with a single image.
func NewExtractor ¶
NewExtractor returns a new instance of an Extractor. The provider filename parameter can contain a path, and must include the file extension. The provided quality parameter behaves in the following manner: the bigger the number, the faster a color will be returned but the greater the likelihood that it will not be the visually most dominant color. 1 then refers the highest quality.
func NewPNGImageExtractor ¶
NewPNGImageExtractor ...
func (*Extractor) GetColor ¶
GetColor selects the dominant color. It corresponds to the first color in the palette. The color is returned as [r g b].
func (*Extractor) GetNumberOfColor ¶
GetNumberOfColor ...
func (*Extractor) GetPalette ¶
GetPalette builds a color palette. We are using the median cut algorithm to cluster similar colors. The provided count parameter defines how many colors should be extracted. Each color is returned as [r g b].
Source Files