vibrance

func Adjust ¶

func Adjust(img image.Image, amount float64) image.Image

Adjust increases the saturation of the least saturated parts of the image while also reducing the lightness of these parts.

func AdjustC ¶

func AdjustC(amount float64) utils.Composable

AdjustC returns a Composable function that increases the saturation and decreases the lightness of unsaturated colours.

Uses the same method as Darktable: https://github.com/darktable-org/darktable/blob/24c4a087fd020df587b5260f438bfaf494203cec/src/iop/vibrance.c

func Exp ¶

func Exp(img image.Image, amount float64) image.Image

Exp increases the saturation of the least saturated parts of an image.

func ExpC ¶

func ExpC(amount float64) utils.Composable

ExpC returns a Composable function that increases the saturation of unsaturated colours.