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Extract prominent colors from images. Go port of the Android awesome Palette class aka Vibrant.js.

License: Apache License 2.0

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extract-prominent-colors vibrant android-palette golang

vibrant's Introduction

vibrant

Extract prominent colors from images. Go port of the Android awesome Palette class aka Vibrant.js.

install

go get github.com/dayvonjersen/vibrant

usage

// example: create css stylesheet from image file
checkErr := func(err error) { if err != nil { panic(err) } }

f, err := os.Open("some_image.jpg")
checkErr(err)
defer f.Close()

img, _, err := image.Decode(f)
checkErr(err)

palette, err := vibrant.NewPaletteFromImage(img)
checkErr(err)

for name, swatch := range palette.ExtractAwesome() {
  fmt.Printf("/* %s (population: %d) */\n%s\n\n", name, swatch.Population, swatch)
}

output:

/* LightMuted (population: 253) */
.lightmuted{background-color:#cbc0a2;color:#000000;}

/* DarkMuted (population: 11069) */
.darkmuted{background-color:#5b553f;color:#ffffff;}

/* Vibrant (population: 108) */
.vibrant{background-color:#dfd013;color:#000000;}

/* LightVibrant (population: 87) */
.lightvibrant{background-color:#f4ed7d;color:#000000;}

/* DarkVibrant (population: 2932) */
.darkvibrant{background-color:#917606;color:#ffffff;}

/* Muted (population: 4098) */
.muted{background-color:#a58850;color:#000000;}

See godoc reference for full API.

bonus round

reference implementation/command line tool

go get github.com/dayvonjersen/vibrant/cmd/vibrant

usage: vibrant [options] file

options:
  -compress
    	Strip whitespace from output.
  -css
    	Output results in CSS.
  -json
    	Output results in JSON.
  -lowercase
    	Use lowercase only for all output. (default true)
  -rgb
    	Output RGB instead of HTML hex, e.g. #ffffff.

webapp

go get github.com/dayvonjersen/vibrant
cd $GOPATH/src/github.com/dayvonjersen/vibrant
go run webapp.go
# open http://localhost:8080/ in a browser

thanks

https://github.com/Infinity/Iris

This Google I/O 2014 presentation

https://github.com/jariz/vibrant.js

https://github.com/akfish/node-vibrant

vibrant's People

Contributors

Stargazers

Watchers

Forkers

mantyr 17twenty akakoori lordnynex zekrotja ltoussaint fengrk axyz joomcode

vibrant's Issues

piping data from another command to vibrant cli

Is it possible to feed an image to the vibrant cli tool from a unix pipe?

ie.

~$ curl https://i.imgur.com/nzcJuDx.png  | vibrant -json 
usage: vibrant [options] file

options:
  -compress
    	Strip whitespace from output.
  -css
    	Output results in CSS.
  -json
    	Output results in JSON.
  -lowercase
    	Use lowercase only for all output. (default true)
  -rgb
    	Output RGB instead of HTML hex, e.g. #ffffff.
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
 16 30609   16  4910    0     0  18374      0  0:00:01 --:--:--  0:00:01 18389
curl: (23) Failed writing body (1945 != 2759)

this does not work ^

I can achieve what I want though by saving to a temp file

eg.

~$ curl https://i.imgur.com/nzcJuDx.png  -o temp && vibrant -json temp
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 30609  100 30609    0     0   100k      0 --:--:-- --:--:-- --:--:--  100k
{
  "darkvibrant": {
    "color": "#004285",
    "text": "#ffffff"
  },
  "lightvibrant": {
    "color": "#7bbdff",
    "text": "#000000"
  },
  "vibrant": {
    "color": "#3f9fff",
    "text": "#ffffff"
  }
}

Can you add OSS licence information to the repo.

We want to try this OSS in the production. A license file would encourage the use with peace of legal mind.

s/o for vibrant

gave this project a shout-out on my website.

http://lmj0011.name/

thanks

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