image

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v0.4.0 Latest Latest Go to latest Published: Jul 22, 2023 License: MIT Imports: 10 Imported by: 0

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Repository

github.com/avislash/nftstamper

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Documentation ¶

Index ¶

func HexToRGBA(hexColor string) (color.RGBA, error)
type Combiner
type Decoder
type DefaultDecoder
- func (dd *DefaultDecoder) Decode(r io.Reader) (Image, error)
type Image
type JPEGDecoder
- func (jd *JPEGDecoder) Decode(r io.Reader) (Image, error)
type PNGCombiner
- func NewPNGCombiner(opts ...PNGCombinerOption) *PNGCombiner
type PNGCombinerOption
type PNGDecoder
- func (pd *PNGDecoder) Decode(r io.Reader) (Image, error)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func HexToRGBA ¶ added in v0.4.0

func HexToRGBA(hexColor string) (color.RGBA, error)

Types ¶

type Combiner ¶

type Combiner interface {
	AdjustImageOpacity(img Image, opacity float64) Image
	CombineImages(img1, img2 Image) Image
	EncodeImage(img Image) (*bytes.Buffer, error)
	HexChromaKeySwap(img Image, chromaKey, newColor string) (Image, error)
}

type Decoder ¶

type Decoder interface {
	Decode(r io.Reader) (Image, error)
}

type DefaultDecoder ¶

type DefaultDecoder struct {
}

func (*DefaultDecoder) Decode ¶

func (dd *DefaultDecoder) Decode(r io.Reader) (Image, error)

type Image ¶

type Image = image.Image

type JPEGDecoder ¶

type JPEGDecoder struct {
}

func (*JPEGDecoder) Decode ¶

func (jd *JPEGDecoder) Decode(r io.Reader) (Image, error)

type PNGCombiner ¶

type PNGCombiner struct {
	// contains filtered or unexported fields
}

func NewPNGCombiner ¶

func NewPNGCombiner(opts ...PNGCombinerOption) *PNGCombiner

func (*PNGCombiner) AdjustImageOpacity ¶ added in v0.1.0

func (pc *PNGCombiner) AdjustImageOpacity(img Image, opacity float64) Image

Adjusts the image opacity of non-transparent pixels to the specified opacity The opacity adjustment is made using he over-composition mode of the Porter-Duff algorithm. Using over-composition since this (based on observation) allows for the best result when blending foreground over background in the current use case. The other modes can be added later and this function can be refactored if needed.

func (*PNGCombiner) CombineImages ¶

func (pc *PNGCombiner) CombineImages(img1, img2 Image) Image

func (*PNGCombiner) EncodeImage ¶ added in v0.1.0

func (pc *PNGCombiner) EncodeImage(img Image) (*bytes.Buffer, error)

func (*PNGCombiner) HexChromaKeySwap ¶ added in v0.4.0

func (pc *PNGCombiner) HexChromaKeySwap(img Image, chromaKey, newColor string) (Image, error)

type PNGCombinerOption ¶

type PNGCombinerOption func(p *PNGCombiner)

func WithBestPNGCompression ¶

func WithBestPNGCompression() PNGCombinerOption

func WithBestSpeedPNGCompression ¶

func WithBestSpeedPNGCompression() PNGCombinerOption

func WithCompressionLevel ¶

func WithCompressionLevel(level png.CompressionLevel) PNGCombinerOption

func WithDefaultPNGCompression ¶

func WithDefaultPNGCompression() PNGCombinerOption

func WithNoPNGCompression ¶

func WithNoPNGCompression() PNGCombinerOption

type PNGDecoder ¶

type PNGDecoder struct {
}

func (*PNGDecoder) Decode ¶

func (pd *PNGDecoder) Decode(r io.Reader) (Image, error)

Source Files ¶

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