func main() {
var (
long = flag.Bool("long", false, "")
short = flag.Bool("short", false, "")
usage = flag.Bool("usage", false, "")
)
os.Args = utils.GetOutput(os.Args)
flag.Parse()
if *long {
fmt.Println(
" Applies a simple lomo effect to the image, boosting its saturation and\n" +
" composing with a black edged mask.",
)
} else if *short {
fmt.Println("applies a simple lomo effect to the image")
} else if *usage {
fmt.Println("lomo [options]")
} else {
img, data := utils.ReadStdin()
// http://the.taoofmac.com/space/blog/2005/08/23/2359
img = contrast.Adjust(img, 1.2)
img = channel.Adjust(img, utils.Multiplier(1.2), channel.Saturation)
img = blend.Multiply(img, maskFor(img))
utils.WriteStdout(img, data)
}
}
func runChannel(cmd *hadfield.Command, args []string) {
i, data := utils.ReadStdin()
var adj utils.Adjuster
if utils.FlagVisited("by", cmd.Flag) {
adj = utils.Adder(channelBy)
} else {
adj = utils.Multiplier(channelRatio)
}
if !(channelRed || channelGreen || channelBlue || channelHue ||
channelSaturation || channelLightness || channelBrightness || channelAlpha) {
channelRed = true
channelGreen = true
channelBlue = true
}
if channelRed {
i = channel.Adjust(i, adj, channel.Red)
}
if channelGreen {
i = channel.Adjust(i, adj, channel.Green)
}
if channelBlue {
i = channel.Adjust(i, adj, channel.Blue)
}
if channelHue {
i = channel.Adjust(i, adj, channel.Hue)
}
if channelSaturation {
i = channel.Adjust(i, adj, channel.Saturation)
}
if channelLightness {
i = channel.Adjust(i, adj, channel.Lightness)
}
if channelBrightness {
i = channel.Adjust(i, adj, channel.Brightness)
}
if channelAlpha {
i = channel.Adjust(i, adj, channel.Alpha)
}
utils.WriteStdout(i, data)
}