jbig2

package

v0.0.0-...-90a1d6d Latest Latest Go to latest Published: Apr 8, 2020 License: AGPL-3.0, AGPL-3.0-only Imports: 6 Imported by: 0

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

Repository URL not available.

Documentation ¶

Overview ¶

Package jbig2 provides the jbig2 standard image Encoder and Decoder. All the comments reference to the 'ISO/IEC 14992 INFORMATION TECHNOLOGY - CODED REPRESENTATION OF PICTURE AND AUDIO INFORMATION - LOSSY/LOSSLESS CODING OF BI-LEVEL IMAGES JBIG committee 1999 July 16' document. The document is available and can be downloaded at: 'https://github.com/agl/jbig2enc/blob/master/fcd14492.pdf'

The decoder was based on the 'Apache PDFBox JBIG2 Java plugin' which can be found at: 'https://github.com/apache/pdfbox-jbig2'.

Index ¶

func DecodeBytes(encoded []byte, parameters decoder.Parameters, globals ...Globals) ([]byte, error)
type Globals
- func DecodeGlobals(encoded []byte) (Globals, error)
- func (g Globals) ToDocumentGlobals() *document.Globals

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func DecodeBytes ¶

func DecodeBytes(encoded []byte, parameters decoder.Parameters, globals ...Globals) ([]byte, error)

DecodeBytes decodes jbig2 'encode' byte slice data, with provided 'parameters' and optional 'globals'. The function decodes only a single page from the given input.

Types ¶

type Globals ¶

type Globals map[int]*segments.Header

Globals is the v3 mapping of the jbig2 segments to header mapping.

func DecodeGlobals ¶

func DecodeGlobals(encoded []byte) (Globals, error)

DecodeGlobals decodes globally defined data segments from the provided 'encoded' byte slice.

func (Globals) ToDocumentGlobals ¶

func (g Globals) ToDocumentGlobals() *document.Globals

ToDocumentGlobals converts 'jbig2.Globals' into '*document.Globals'

Source Files ¶

View all Source files

Directories ¶

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL

Path	Synopsis
basic Package basic contains common structures, slices and maps used within the jbig2 package.	Package basic contains common structures, slices and maps used within the jbig2 package.
bitmap Package bitmap contains the bitmap data container for the binary images used when decoding the jbig2 encoded images.	Package bitmap contains the bitmap data container for the binary images used when decoding the jbig2 encoded images.
decoder Package decoder provides primitives used to decode the jbig2 data stream.	Package decoder provides primitives used to decode the jbig2 data stream.
arithmetic Package arithmetic contains the jbig2 arithmetic decoder used to decode the jbig2 encoded segments.	Package arithmetic contains the jbig2 arithmetic decoder used to decode the jbig2 encoded segments.
huffman Package huffman contains jbig2 huffman tables used to decode jbig2 encoded data segments.	Package huffman contains jbig2 huffman tables used to decode jbig2 encoded data segments.
mmr Package mmr contains the jbig2 mmr decoder used to decode jbig2 encoded data segments.	Package mmr contains the jbig2 mmr decoder used to decode jbig2 encoded data segments.
document Package document provides jbig2 encoding primitives used for encoding and decoding purpose.	Package document provides jbig2 encoding primitives used for encoding and decoding purpose.
segments Package segments provides jbig2 segments models used in the jbig2 document decoding process.	Package segments provides jbig2 segments models used in the jbig2 document decoding process.
encoder
arithmetic Package arithmetic provides jbig2 arithmetic encoder definitions.	Package arithmetic provides jbig2 arithmetic encoder definitions.
classer Package classer contains apache leptonica like implementation of the jbig2 classificator.	Package classer contains apache leptonica like implementation of the jbig2 classificator.
errors Package errors contains error wrappers and creators used for precise error messaging in the jbig2 package.	Package errors contains error wrappers and creators used for precise error messaging in the jbig2 package.
reader Package reader provides the stream readers used by the jbig2 segments decoder.	Package reader provides the stream readers used by the jbig2 segments decoder.
tests Package tests contains the tests and benchmarks for the JBIG2 decoder and encoder.	Package tests contains the tests and benchmarks for the JBIG2 decoder and encoder.
writer Package writer contains the data writer that implements io.Writer, io.ByteWriter and allows to write single bits.	Package writer contains the data writer that implements io.Writer, io.ByteWriter and allows to write single bits.