Package org.apache.pdfbox.pdmodel.graphics.predictor

The predictor package contains code for different PNG predictor algorithms that are present in PDF documents.

See: Description

Class Summary

Class	Description
Average	We can use raw on the right hand side of the decoding formula because it is already decoded.
None	The none algorithm.
Optimum	In an Uptimum encoded image, each line takes up width*bpp+1 bytes.
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.

Package org.apache.pdfbox.pdmodel.graphics.predictor Description

The predictor package contains code for different PNG predictor algorithms that are present in PDF documents. These classes are used internally by PDFBox.