mediancut

package

v0.0.0-...-f393563 Latest Latest Go to latest Published: Apr 8, 2020 License: MIT Imports: 8 Imported by: 0

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Repository

github.com/cascax/colorthief-go

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func BlueColor(color uint16) uint8
func GetPalette(img image.Image, maxCubes int) ([]color.Color, error)
func GetRGB(color uint16) (uint8, uint8, uint8)
func GreenColor(color uint16) uint8
func NewPriorityQueue(maxSize int) *priorityQueue
func RGB(r uint8, g uint8, b uint8) uint16
func RedColor(color uint16) uint8
type ColorCube
type LongestColor

Constants ¶

View Source

const (
	// HistogramSize is the maximum number of 16 bit colors
	HistogramSize = 32768
)

Variables ¶

View Source

var ErrEmpty = errors.New("Empty")

Functions ¶

func BlueColor ¶

func BlueColor(color uint16) uint8

BlueColor return blue value from uint16 color

func GetPalette ¶

func GetPalette(img image.Image, maxCubes int) ([]color.Color, error)

GetPalette return cluster similar colors by the median cut algorithm

func GetRGB ¶

func GetRGB(color uint16) (uint8, uint8, uint8)

func GreenColor ¶

func GreenColor(color uint16) uint8

GreenColor return green value from uint16 color

func NewPriorityQueue ¶

func NewPriorityQueue(maxSize int) *priorityQueue

NewPriorityQueue return a maximum heap

func RGB ¶

func RGB(r uint8, g uint8, b uint8) uint16

RGB convert RGB color to 16 bit value

func RedColor ¶

func RedColor(color uint16) uint8

RedColor return red value from uint16 color

Types ¶

type ColorCube ¶

type ColorCube struct {
	Count   int          // number of pixels
	Level   int          // cutting depth
	Longest LongestColor // RGB cube's longest edge

	RMin, RMax, GMin, GMax, BMin, BMax uint8 // range of RGB value

	Hist []uint16
}

func (ColorCube) Clone ¶

func (cube ColorCube) Clone() ColorCube

func (ColorCube) GetColor ¶

func (cube ColorCube) GetColor(hist []int) color.RGBA

GetColor return the cube's average color value

func (*ColorCube) Len ¶

func (cube *ColorCube) Len() int

func (*ColorCube) Less ¶

func (cube *ColorCube) Less(i, j int) bool

func (ColorCube) Rank ¶

func (cube ColorCube) Rank() int

func (*ColorCube) Shrink ¶

func (cube *ColorCube) Shrink()

Shrink will shrink the range of RGB value

func (*ColorCube) Swap ¶

func (cube *ColorCube) Swap(i, j int)

func (ColorCube) Volume ¶

func (cube ColorCube) Volume() int

type LongestColor ¶

type LongestColor int

const (
	LongRed LongestColor = iota + 1
	LongGreen
	LongBlue
)

Source Files ¶

View all Source files

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