HalftoneDecoder · PDFToolkit

Reference / Independent PHP image codecs

class final readonly Optional · pdftoolkit/pdf-codecs 0.1.0

PDFToolkit\Codecs\Jbig2\HalftoneDecoder

T.88 6.6/6.7 and Annex C, including skipped grid cells and all composition operators.

Read the source declaration ↗

This component belongs to pdftoolkit/pdf-codecs, a module installed separately from the core. Module guide. Package API.

Inheritance and contracts

This type declares no parent, interface or trait.

Construction

__construct()

public function __construct(PDFToolkit\Codecs\DecodeBudget $budget, PDFToolkit\Codecs\Jbig2\GenericBitmapDecoder $generic, PDFToolkit\Codecs\Jbig2\MmrBitmapDecoder $mmr)

Declared by PDFToolkit\Codecs\Jbig2\HalftoneDecoder · View the code ↗

Declared methods

patterns()

public function patterns(PDFToolkit\Codecs\Jbig2\BitInput $input): array

@return non-empty-list<Bitmap>

Declared by PDFToolkit\Codecs\Jbig2\HalftoneDecoder · View the code ↗

region()

public function region(PDFToolkit\Codecs\Jbig2\RegionInfo $info, PDFToolkit\Codecs\Jbig2\BitInput $input, array $patterns): PDFToolkit\Codecs\Jbig2\Bitmap

@param non-empty-list<Bitmap> $patterns

Declared by PDFToolkit\Codecs\Jbig2\HalftoneDecoder · View the code ↗