Package org.pdfbox.pdmodel.graphics.predictor
The predictor package contains code for different PNG predictor algorithms that
are present in PDF documents.
Average | We can use raw on the right hand side of
the decoding formula because it is already decoded.
|
None | The none algorithm.
|
Paeth | From http://www.w3.org/TR/PNG-Filters.html: The Paeth filter computes a
simple linear function of the three neighboring pixels (left, above, upper
left), then chooses as predictor the neighboring pixel closest to the
computed value. |
PredictorAlgorithm | Implements different PNG predictor algorithms that is used in PDF files.
|
Sub | The sub algorithm.
|
Up | The up algorithm.
|
Uptimum |
In an Uptimum encoded image, each line takes up width*bpp+1 bytes. |
The predictor package contains code for different PNG predictor algorithms that
are present in PDF documents. These classes are used internally by PDFBox.