imgconv

Nov 23, 2023

Changes in this version

type Format

+ func (f *Format) UnmarshalText(text []byte) error

+ func (f Format) MarshalText() ([]byte, error)

type TIFFCompression

+ func (c *TIFFCompression) UnmarshalText(text []byte) error

+ func (c TIFFCompression) MarshalText() (b []byte, err error)

Oct 5, 2022

Changes in this version

type EncodeOption

+ func BackgroundColor(color color.Color) EncodeOption

type Format

+ func (f Format) String() string

Jun 3, 2022

Changes in this version

+ type DecodeOption func(*decodeConfig)

+ func AutoOrientation(enabled bool) DecodeOption

Jan 5, 2022

Changes in this version

+ func ToGray(img image.Image) image.Image

type Options

+ Gray bool

+ func (opts *Options) SetGray(gray bool) *Options

Sep 9, 2021

Changes in this version

+ type TIFFCompression int

+ const TIFFCCITTGroup3

+ const TIFFCCITTGroup4

+ const TIFFDeflate

+ const TIFFJPEG

+ const TIFFLZW

+ const TIFFUncompressed

Jul 26, 2021

Changes in this version

+ func Decode(r io.Reader) (image.Image, error)

+ func DecodeConfig(r io.Reader) (cfg image.Config, err error)

+ func Open(file string) (image.Image, error)

+ func Resize(base image.Image, option ResizeOption) image.Image

+ func Save(output string, base image.Image, option FormatOption) error

+ func Watermark(base image.Image, option WatermarkOption) image.Image

+ func Write(w io.Writer, base image.Image, option FormatOption) error

+ type EncodeOption func(*encodeConfig)

+ func GIFDrawer(drawer draw.Drawer) EncodeOption

+ func GIFNumColors(numColors int) EncodeOption

+ func GIFQuantizer(quantizer draw.Quantizer) EncodeOption

+ func PNGCompressionLevel(level png.CompressionLevel) EncodeOption

+ func Quality(quality int) EncodeOption

+ func TIFFCompressionType(compressionType tiff.CompressionType) EncodeOption

+ type Format int

+ const BMP

+ const GIF

+ const JPEG

+ const PDF

+ const PNG

+ const TIFF

+ func FormatFromExtension(ext string) (Format, error)

+ type FormatOption struct

+ EncodeOption []EncodeOption

+ Format Format

+ func (f *FormatOption) Encode(w io.Writer, img image.Image) error

+ type Options struct

+ Format FormatOption

+ Resize *ResizeOption

+ Watermark *WatermarkOption

+ func NewOptions() Options

+ func (opts *Options) Convert(w io.Writer, base image.Image) error

+ func (opts *Options) ConvertExt(filename string) string

+ func (opts *Options) SetFormat(f string, options ...EncodeOption) (err error)

+ func (opts *Options) SetResize(width, height int, percent float64) *Options

+ func (opts *Options) SetWatermark(mark image.Image, opacity uint) *Options

+ type ResizeOption struct

+ Height int

+ Percent float64

+ Width int

+ type WatermarkOption struct

+ Mark image.Image

+ Offset image.Point

+ Opacity uint8

+ Random bool

+ func (w *WatermarkOption) SetOffset(offset image.Point) *WatermarkOption

+ func (w *WatermarkOption) SetRandom(random bool) *WatermarkOption