module HexaPDF::Filter::Predictor
Implements the predictor for the LZWDecode
and FlateDecode
filters.
Although a predictor isn't a full PDF filter, it is implemented as one in HexaPDF
terms to allow easy chaining of the predictor.
See: PDF1.7 s7.4.4.3, s7.4.4.4, partners.adobe.com/public/developer/en/tiff/TIFF6.pdf (p64f), www.w3.org/TR/PNG-Filters.html
Public Class Methods
decoder(source, options)
click to toggle source
See HexaPDF::Filter
# File lib/hexapdf/filter/predictor.rb, line 69 def self.decoder(source, options) execute(:decoder, source, options) end
encoder(source, options)
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See HexaPDF::Filter
# File lib/hexapdf/filter/predictor.rb, line 74 def self.encoder(source, options) execute(:encoder, source, options) end