images

package module

v0.0.0-...-46361fd Latest Latest Go to latest Published: Apr 30, 2016 License: MIT Imports: 18 Imported by: 0

Details

Valid go.mod file

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Tagged version

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Stable version

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Repository

github.com/mantyr/images

Links

Open Source Insights

README ¶

Images

This not stable version

Installation

$ go get github.com/mantyr/images

Author

Oleg Shevelev

Documentation ¶

Index ¶

Constants
Variables
func Clone(img image.Image) *image.NRGBA
func Resize(i image.Image, width, height int, filter ResampleFilter) *image.NRGBA
type Image
- func Open(address string) (i *Image, err error)
- func OpenFile(file *os.File) (i *Image, err error)
type ResampleFilter

Constants ¶

View Source

const (
	FormatTIFF string = "tiff"
	FormatJPEG string = "jpeg"
	FormatGIF  string = "gif"
	FormatPNG  string = "png"
	FormatBMP  string = "bmp"
)

Variables ¶

View Source

var Formats = [5]string{"tiff", "jpeg", "gif", "png", "bmp"}

Functions ¶

func Clone ¶

func Clone(img image.Image) *image.NRGBA

func Resize ¶

func Resize(i image.Image, width, height int, filter ResampleFilter) *image.NRGBA

Types ¶

type Image ¶

type Image struct {
	Image   *image.NRGBA
	Address string
	Format  string
	Quality int

	Error error
	// contains filtered or unexported fields
}

func Open ¶

func Open(address string) (i *Image, err error)

func OpenFile ¶

func OpenFile(file *os.File) (i *Image, err error)

func (*Image) GetHash ¶

func (i *Image) GetHash() string

func (*Image) Height ¶

func (i *Image) Height() int

func (*Image) Height64 ¶

func (i *Image) Height64() float64

func (*Image) Negative ¶

func (i *Image) Negative() (image *Image)

Превращает изображение в негатив или наоборот

func (*Image) Resize ¶

func (i *Image) Resize(width, height int, params ...ResampleFilter) (image *Image)

func (*Image) ResizeCrop ¶

func (i *Image) ResizeCrop(width, height int, params ...ResampleFilter) (img *Image)

func (*Image) ResizeIn ¶

func (i *Image) ResizeIn(width, height int, params ...ResampleFilter) *Image

Картинка меньше прямоугольника

func (*Image) ResizeMax ¶

func (i *Image) ResizeMax(width, height int, params ...ResampleFilter) *Image

Картинка меньше прямоугольника, но если изначальный размер ещё меньше то картинка не растягивается

func (*Image) ResizeOut ¶

func (i *Image) ResizeOut(width, height int, params ...ResampleFilter) *Image

Картинка больше прямоугольника

func (*Image) Save ¶

func (i *Image) Save(params ...string) (err error)

func (*Image) SetBmp ¶

func (i *Image) SetBmp() *Image

func (*Image) SetFormat ¶

func (i *Image) SetFormat(format string)

func (*Image) SetGif ¶

func (i *Image) SetGif() *Image

func (*Image) SetJpeg ¶

func (i *Image) SetJpeg() *Image

func (*Image) SetPNGBestCompression ¶

func (i *Image) SetPNGBestCompression() *Image

func (*Image) SetPNGBestSpeed ¶

func (i *Image) SetPNGBestSpeed() *Image

func (*Image) SetPNGNoCompression ¶

func (i *Image) SetPNGNoCompression() *Image

func (*Image) SetPng ¶

func (i *Image) SetPng() *Image

func (*Image) SetQuality ¶

func (i *Image) SetQuality(quality int) *Image

func (*Image) SetTiff ¶

func (i *Image) SetTiff() *Image

func (*Image) Width ¶

func (i *Image) Width() int

func (*Image) Width64 ¶

func (i *Image) Width64() float64

type ResampleFilter ¶

type ResampleFilter struct {
	Support float64
	Kernel  func(float64) float64
}

var BSpline ResampleFilter

var Bartlett ResampleFilter

var Blackman ResampleFilter

var Box ResampleFilter

var CatmullRom ResampleFilter

var Cosine ResampleFilter

var Gaussian ResampleFilter

var Hamming ResampleFilter

var Hann ResampleFilter

var Hermite ResampleFilter

var Lanczos ResampleFilter

var Linear ResampleFilter

var MitchellNetravali ResampleFilter

var NearestNeighbor ResampleFilter

var Welch ResampleFilter

Source Files ¶

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