// necessary dependencies
go get github.com/nfnt/resize
go build yukkuri
// help
yukkuri -h
-H int
set ascii max height (default -1)
-W int
set ascii max width (default -1)
-f string
specify an image file to transcode
-h help
-m string
save temporary image
-n string
set output file name (default "tmp.txt")
-t int
set threshold for image grey processing (default 140)
-y make the output ascii more like yukkuri style,but more likely to be unrecognizable.smaller -W -H are recommended when this option is enabled