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See:
Description
| Class Summary | |
| 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.
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