image

package
v0.0.0-...-c5bcced Latest Latest
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 Go to latest Published: Sep 16, 2021 License: Apache-2.0 Imports: 24 Imported by: 0

Documentation

Overview

The image package enables loading and manipulating images. 

var lib = require('image');
lib
	.load(context.req.body)
	.fit(400, 400)
	.grayscale()
	.pipe(context.res.body)
;

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func New 

func New(orb *orbit.Orbit) interface{}

Types

type Image 

type Image struct {
	Val image.Image `console:"-"`
	// contains filtered or unexported fields
}

func NewImage 

func NewImage(orb *orbit.Orbit, val image.Image) *Image

func (*Image) Blur 

func (this *Image) Blur(radius float64) *Image

func (*Image) Brightness 

func (this *Image) Brightness(percentage float64) *Image

func (*Image) Bytes 

func (this *Image) Bytes(format ...int) []byte

func (*Image) Channel 

func (this *Image) Channel(c int) *Image

func (*Image) Contrast 

func (this *Image) Contrast(percentage float64) *Image

func (*Image) Crop 

func (this *Image) Crop(x0, y0, x1, y1 int) *Image

func (*Image) Darken 

func (this *Image) Darken(percentage float64) *Image

func (*Image) Dilate 

func (this *Image) Dilate(radius float64) *Image

func (*Image) Edges 

func (this *Image) Edges(radius float64) *Image

func (*Image) Emboss 

func (this *Image) Emboss() *Image

func (*Image) Erode 

func (this *Image) Erode(radius float64) *Image

func (*Image) Fill 

func (this *Image) Fill(w, h int, anchor int, resampler ...imaging.ResampleFilter) *Image

func (*Image) Fit 

func (this *Image) Fit(w, h int, resampler ...imaging.ResampleFilter) *Image

func (*Image) FlipH 

func (this *Image) FlipH() *Image

func (*Image) FlipV 

func (this *Image) FlipV() *Image

func (*Image) Gamma 

func (this *Image) Gamma(gamma float64) *Image

func (*Image) Grayscale 

func (this *Image) Grayscale() *Image

func (*Image) Height 

func (this *Image) Height() int

func (*Image) Hue 

func (this *Image) Hue(change int) *Image

func (*Image) Invert 

func (this *Image) Invert() *Image

func (*Image) Len 

func (this *Image) Len() int

func (*Image) Lighten 

func (this *Image) Lighten(percentage float64) *Image

func (*Image) MarshalBinary 

func (this *Image) MarshalBinary() ([]byte, error)

func (*Image) MarshalText 

func (this *Image) MarshalText() ([]byte, error)

func (*Image) Median 

func (this *Image) Median(radius float64) *Image

func (*Image) Pad 

func (this *Image) Pad(x, y int) *Image

func (*Image) Pipe 

func (this *Image) Pipe(w io.Writer, format ...int)

func (*Image) Read 

func (this *Image) Read(b []byte) (int, error)

func (*Image) ReadAt 

func (this *Image) ReadAt(b []byte, off int64) (int, error)

func (*Image) Resize 

func (this *Image) Resize(w, h int, resampler ...imaging.ResampleFilter) *Image

func (*Image) Rotate 

func (this *Image) Rotate(angle float64, x, y int) *Image

func (*Image) Rotate180 

func (this *Image) Rotate180() *Image

func (*Image) Rotate270 

func (this *Image) Rotate270() *Image

func (*Image) Rotate90 

func (this *Image) Rotate90() *Image

func (*Image) Saturation 

func (this *Image) Saturation(percentage float64) *Image

func (*Image) Seek 

func (this *Image) Seek(offset int64, whence int) (int64, error)

func (*Image) Sepia 

func (this *Image) Sepia() *Image

func (*Image) Sharpen 

func (this *Image) Sharpen(radius float64) *Image

func (*Image) ShearH 

func (this *Image) ShearH(angle float64) *Image

func (*Image) ShearV 

func (this *Image) ShearV(angle float64) *Image

func (*Image) Sigmoid 

func (this *Image) Sigmoid(midpoint, factor float64) *Image

func (*Image) Sobel 

func (this *Image) Sobel() *Image

func (*Image) String 

func (this *Image) String(format ...int) string

func (*Image) Threshold 

func (this *Image) Threshold(level uint8) *Image

func (*Image) Thumbnail 

func (this *Image) Thumbnail(w, h int, resampler ...imaging.ResampleFilter) *Image

func (*Image) Translate 

func (this *Image) Translate(x, y int) *Image

func (*Image) Transpose 

func (this *Image) Transpose() *Image

func (*Image) Transverse 

func (this *Image) Transverse() *Image

func (*Image) Trim 

func (this *Image) Trim(w, h int, anchor int) *Image

func (*Image) Unsharpen 

func (this *Image) Unsharpen(radius, amount float64) *Image

func (*Image) Width 

func (this *Image) Width() int

type Module 

type Module struct {

	// Image channels
	R channel.Channel
	G channel.Channel
	B channel.Channel
	A channel.Channel
	// Image formats
	BMP  imaging.Format
	GIF  imaging.Format
	PNG  imaging.Format
	JPG  imaging.Format
	JPEG imaging.Format
	TIFF imaging.Format
	// Image anchors
	CENTER      imaging.Anchor
	TOP         imaging.Anchor
	LEFT        imaging.Anchor
	RIGHT       imaging.Anchor
	BOTTOM      imaging.Anchor
	TOPLEFT     imaging.Anchor
	TOPRIGHT    imaging.Anchor
	BOTTOMLEFT  imaging.Anchor
	BOTTOMRIGHT imaging.Anchor
	// Image resamplers
	NEAREST    imaging.ResampleFilter
	BOX        imaging.ResampleFilter
	LINEAR     imaging.ResampleFilter
	HERMITE    imaging.ResampleFilter
	MNETRAVALI imaging.ResampleFilter
	CATMULLROM imaging.ResampleFilter
	BSPLINE    imaging.ResampleFilter
	GAUSSIAN   imaging.ResampleFilter
	LANCZOS    imaging.ResampleFilter
	HANN       imaging.ResampleFilter
	HAMMING    imaging.ResampleFilter
	BLACKMAN   imaging.ResampleFilter
	BARTLETT   imaging.ResampleFilter
	WELCH      imaging.ResampleFilter
	COSINE     imaging.ResampleFilter
	// contains filtered or unexported fields
}

func (*Module) Load 

func (this *Module) Load(r io.Reader) *Image

Source Files

View all Source files

Directories

Path Synopsis
The image/change package shows the difference between two images.
 The image/change package shows the difference between two images.
The image/codabar package generates codabar barcode images.
 The image/codabar package generates codabar barcode images.
The image/code package generates qr code images.
 The image/code package generates qr code images.
The image/code128 package generates code128 barcode images.
 The image/code128 package generates code128 barcode images.
The image/code39 package generates code39 barcode images.
 The image/code39 package generates code39 barcode images.
The image/datamatrix package generates datamatrix barcode images.
 The image/datamatrix package generates datamatrix barcode images.
The image/diff package creates an image diff of two images.
 The image/diff package creates an image diff of two images.
The image/ean package generates ean barcode images.
 The image/ean package generates ean barcode images.
The image/patch package applies an image diff to another image.
 The image/patch package applies an image diff to another image.
The image/placeholder package generates placeholder images with text.
 The image/placeholder package generates placeholder images with text.
The image/qr package generates qr code images.
 The image/qr package generates qr code images.
The image/twooffive package generates twooffive barcode images.
 The image/twooffive package generates twooffive barcode images.

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