jpeg

Documentation

Overview

The jpeg package implements a decoder for JPEG images, as defined in ITU-T T.81.

Index

• func Decode(r io.Reader) (image.Image, os.Error)
• type FormatError
  • func (e FormatError) String() string
• type Reader
• type UnsupportedError
  • func (e UnsupportedError) String() string

Functions

func Decode

func Decode(r io.Reader) (image.Image, os.Error)

Decode reads a JPEG formatted image from r and returns it as an image.Image.

Types

type FormatError

type FormatError string

A FormatError reports that the input is not a valid JPEG.

func (FormatError) String

func (e FormatError) String() string

type Reader

type Reader interface {
	io.Reader
	ReadByte() (c byte, err os.Error)
}

If the passed in io.Reader does not also have ReadByte, then Decode will introduce its own buffering.

type UnsupportedError

type UnsupportedError string

An UnsupportedError reports that the input uses a valid but unimplemented JPEG feature.

func (UnsupportedError) String

func (e UnsupportedError) String() string