flood-fill
modify image with some function. supports only jpeg and png images.
NOTE: i don't know if it's actually flood fill algorithm but name is cool tho :)
usage
convert dominant color with complementary one
go run . -n 1 -op c ./image.jpg
convert every pixel with black & white
go run . -n 0 -op bw ./image.png
docs
number of dominant colors
go run . -n {number}
0 - means every color
operation
go run . -op {bw|c}
bw - black & white c - complementary