imageutil

package

v1.1.0 Latest Latest Go to latest Published: Feb 19, 2020 License: MIT Imports: 6 Imported by: 0

Details

Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/jmigpin/editor

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Documentation ¶

Index ¶

Variables
func BGRASize(r *image.Rectangle) int
func BorderRectangle(img draw.Image, r *image.Rectangle, c color.Color, size int)
func ColorUint16s(c color.Color) (uint16, uint16, uint16, uint16)
func DrawCopy(dst draw.Image, src image.Image, r *image.Rectangle)
func DrawUniform(dst draw.Image, r *image.Rectangle, c color.Color, op draw.Op)
func DrawUniformMask(dst draw.Image, r *image.Rectangle, c color.Color, mask image.Image, ...)
func FillRectangle(img draw.Image, r *image.Rectangle, c color.Color)
func IntRGBA(u int) color.RGBA
func IsLighter(c color.Color) bool
func MaxPoint(p1, p2 image.Point) image.Point
func MinPoint(p1, p2 image.Point) image.Point
func PaintShadow(img draw.Image, r image.Rectangle, height int, maxColorDiff float64)
func Shade(c color.Color, v float64) color.Color
func SprintRGB(c color.Color) string
func Tint(c color.Color, v float64) color.Color
func TintOrShade(c color.Color, v float64) color.Color
func ToBGRAColor(c color.Color) color.RGBA
func Valorize(c color.Color, v float64, auto bool) color.Color
type BGRA
- func NewBGRA(r *image.Rectangle) *BGRA
- func NewBGRAFromBuffer(buf []byte, r *image.Rectangle) *BGRA
- func (img *BGRA) At(x, y int) color.Color
- func (img *BGRA) ColorModel() color.Model
- func (img *BGRA) RGBAImageWithCorrectedColor(c color.Color) (*image.RGBA, color.Color)
- func (img *BGRA) Set(x, y int, c color.Color)
- func (img *BGRA) SetRGBA(x, y int, c color.RGBA)
- func (img *BGRA) SubImage(r image.Rectangle) draw.Image
type HSV
- func MakeHSV(h uint16, s, v uint8) HSV
- func (c HSV) RGBA() (_, _, _, _ uint32)

Constants ¶

This section is empty.

Variables ¶

View Source

var HSVModel color.Model = color.ModelFunc(convertToHSV)

Functions ¶

func BGRASize ¶

func BGRASize(r *image.Rectangle) int

func BorderRectangle ¶

func BorderRectangle(img draw.Image, r *image.Rectangle, c color.Color, size int)

func ColorUint16s ¶

func ColorUint16s(c color.Color) (uint16, uint16, uint16, uint16)

Ex. usage: editor.xutil.cursors

func DrawCopy ¶

func DrawCopy(dst draw.Image, src image.Image, r *image.Rectangle)

func DrawUniform ¶

func DrawUniform(dst draw.Image, r *image.Rectangle, c color.Color, op draw.Op)

func DrawUniformMask ¶

func DrawUniformMask(
	dst draw.Image,
	r *image.Rectangle,
	c color.Color,
	mask image.Image, mp image.Point,
	op draw.Op,
)

func FillRectangle ¶

func FillRectangle(img draw.Image, r *image.Rectangle, c color.Color)

func IntRGBA ¶

func IntRGBA(u int) color.RGBA

func IsLighter ¶

func IsLighter(c color.Color) bool

func MaxPoint ¶

func MaxPoint(p1, p2 image.Point) image.Point

func MinPoint ¶

func MinPoint(p1, p2 image.Point) image.Point

func PaintShadow ¶

func PaintShadow(img draw.Image, r image.Rectangle, height int, maxColorDiff float64)

maxColorDiff in [0.0, 1.0]

func Shade ¶

func Shade(c color.Color, v float64) color.Color

Turn color darker by v percent (0.0, 1.0).

func SprintRGB ¶

func SprintRGB(c color.Color) string

func Tint ¶

func Tint(c color.Color, v float64) color.Color

Turn color lighter by v percent (0.0, 1.0).

func TintOrShade ¶

func TintOrShade(c color.Color, v float64) color.Color

func ToBGRAColor ¶

func ToBGRAColor(c color.Color) color.RGBA

func Valorize ¶

func Valorize(c color.Color, v float64, auto bool) color.Color

Types ¶

type BGRA ¶

type BGRA struct {
	image.RGBA
}

func NewBGRA ¶

func NewBGRA(r *image.Rectangle) *BGRA

func NewBGRAFromBuffer ¶

func NewBGRAFromBuffer(buf []byte, r *image.Rectangle) *BGRA

func (*BGRA) At ¶

func (img *BGRA) At(x, y int) color.Color

func (*BGRA) ColorModel ¶

func (img *BGRA) ColorModel() color.Model

func (*BGRA) RGBAImageWithCorrectedColor ¶

func (img *BGRA) RGBAImageWithCorrectedColor(c color.Color) (*image.RGBA, color.Color)

Allows using rgba image for other functions that rely on detection to use faster draw lanes (ex: draw.Draw)

func (*BGRA) Set ¶

func (img *BGRA) Set(x, y int, c color.Color)

func (*BGRA) SetRGBA ¶

func (img *BGRA) SetRGBA(x, y int, c color.RGBA)

Allows fast lane if detected.

func (*BGRA) SubImage ¶

func (img *BGRA) SubImage(r image.Rectangle) draw.Image

type HSV ¶

type HSV struct {
	H    uint16 // [0-360)
	S, V uint8  // [0-255]
}

func MakeHSV ¶

func MakeHSV(h uint16, s, v uint8) HSV

h in [0-360), {s,v} in [0-100]

func (HSV) RGBA ¶

func (c HSV) RGBA() (_, _, _, _ uint32)

Source Files ¶

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