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 1. Discover Packages
 2. golang.org/x/image
 3. tiff


TIFF

package
Version: v0.17.0
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Latest Latest

This package is not in the latest version of its module.

Go to latest Published: Jun 4, 2024 License: BSD-3-Clause
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Imports: 13
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Imported by: 720
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DETAILS

 * Valid go.mod file
   
   The Go module system was introduced in Go 1.11 and is the official dependency
   management solution for Go.

 * Redistributable license
   
   Redistributable licenses place minimal restrictions on how software can be
   used, modified, and redistributed.

 * Tagged version
   
   Modules with tagged versions give importers more predictable builds.

 * Stable version
   
   When a project reaches major version v1 it is considered stable.

 * Learn more about best practices


REPOSITORY

cs.opensource.google/go/x/image


LINKS

 * Report a Vulnerability
 * Open Source Insights

Jump to ...
 * Documentation
   * Overview
   * Index
   * Constants
   * Variables
   * Functions
     * Decode(r)
     * DecodeConfig(r)
     * Encode(w, m, opt)
   * Types
     * type CompressionType
     * type FormatError
       * (e) Error()
     * type Options
     * type UnsupportedError
       * (e) Error()
 * Source Files
 * Directories

DocumentationSource
FilesDirectoriesOverviewIndexConstantsVariablesFunctionsTypesDecode(r)DecodeConfig(r)Encode(w,
m, opt)type CompressionTypetype FormatErrortype Optionstype UnsupportedError(e)
Error()(e) Error()


DOCUMENTATION ¶


OVERVIEW ¶

Package tiff implements a TIFF image decoder and encoder.

The TIFF specification is at
http://partners.adobe.com/public/developer/en/tiff/TIFF6.pdf


INDEX ¶

 * func Decode(r io.Reader) (img image.Image, err error)
 * func DecodeConfig(r io.Reader) (image.Config, error)
 * func Encode(w io.Writer, m image.Image, opt *Options) error
 * type CompressionType
 * type FormatError
 * * func (e FormatError) Error() string
 * type Options
 * type UnsupportedError
 * * func (e UnsupportedError) Error() string


CONSTANTS ¶

This section is empty.


VARIABLES ¶

This section is empty.


FUNCTIONS ¶

FUNC DECODE ¶

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

Decode reads a TIFF image from r and returns it as an image.Image. The type of
Image returned depends on the contents of the TIFF.

FUNC DECODECONFIG ¶

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

DecodeConfig returns the color model and dimensions of a TIFF image without
decoding the entire image.

FUNC ENCODE ¶

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

Encode writes the image m to w. opt determines the options used for encoding,
such as the compression type. If opt is nil, an uncompressed image is written.


TYPES ¶

TYPE COMPRESSIONTYPE ¶

type CompressionType int

CompressionType describes the type of compression used in Options.

const (
	Uncompressed CompressionType = iota
	Deflate
	LZW
	CCITTGroup3
	CCITTGroup4
)

Constants for supported compression types.

TYPE FORMATERROR ¶

type FormatError string

A FormatError reports that the input is not a valid TIFF image.

FUNC (FORMATERROR) ERROR ¶

func (e FormatError) Error() string

TYPE OPTIONS ¶

type Options struct {
	// Compression is the type of compression used.
	Compression CompressionType
	// Predictor determines whether a differencing predictor is used;
	// if true, instead of each pixel's color, the color difference to the
	// preceding one is saved. This improves the compression for certain
	// types of images and compressors. For example, it works well for
	// photos with Deflate compression.
	Predictor bool
}

Options are the encoding parameters.

TYPE UNSUPPORTEDERROR ¶

type UnsupportedError string

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

FUNC (UNSUPPORTEDERROR) ERROR ¶

func (e UnsupportedError) Error() string


SOURCE FILES ¶

View all Source files
 * buffer.go
 * compress.go
 * consts.go
 * reader.go
 * writer.go


DIRECTORIES ¶

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Path Synopsis
lzw
Package lzw implements the Lempel-Ziv-Welch compressed data format, described in
T. A. Welch, “A Technique for High-Performance Data Compression”, Computer,
17(6) (June 1984), pp 8-19.
Package lzw implements the Lempel-Ziv-Welch compressed data format, described in
T. A. Welch, “A Technique for High-Performance Data Compression”, Computer,
17(6) (June 1984), pp 8-19.

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