gocova is various color image generator.
It generates images of multiple patterns from one image.
$ go get -u github.com/uskey512/gocova
gocova [options] <input>
options:
--output value, -o value output image path base (default: "./result")
--pattern value, -p value number of images to generate (default: 10)
--saturation value, -s value saturation offset [-100.0 ... 100.0] (default: 0)
--lightness value, -l value lightness offset [-100.0 ... 100.0] (default: 0)
Supported formats : png, jpeg, gif
In gocova, converting from RGB to HSL internally.
( see https://en.wikipedia.org/wiki/HSL_and_HSV )
$ gocova -l 30 source.png
$ gocova -s -40 source.png
http://pictogram2.com/?lang=en
Yusuke Uehara (@uskey512)
MIT