bmp - ActiveState ActiveGo 1.8

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Package bmp

import "golang.org/x/image/bmp"

Overview ▹

Overview ▾

Package bmp implements a BMP image decoder and encoder.

The BMP specification is at http://www.digicamsoft.com/bmp/bmp.html.

Index ▹

Index ▾

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

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

func Encode(w io.Writer, m image.Image) error

Package files

reader.go writer.go

Variables

ErrUnsupported means that the input BMP image uses a valid but unsupported feature.

var ErrUnsupported = errors.New("bmp: unsupported BMP image")

func Decode ¶

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

Decode reads a BMP image from r and returns it as an image.Image. Limitation: The file must be 8, 24 or 32 bits per pixel.

func DecodeConfig ¶

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

DecodeConfig returns the color model and dimensions of a BMP image without decoding the entire image. Limitation: The file must be 8, 24 or 32 bits per pixel.

func Encode ¶

func Encode(w io.Writer, m image.Image) error

Encode writes the image m to w in BMP format.