PngFilterType enumeration

Represents PNG image filter type.

The PngFilterType type exposes the following members:

Field	Description
NONE	The null-filter, means no filtering for image data rows.
SUB	The sub filter, means subtractive filtering will be applied to image data.
UP	The up filter, means row-by-row subtraction filter will be applied.
AVG	The avg filter, means, that average filter will be applied to image data.
PAETH	The path predictor filter.
ADAPTIVE	Adaptive filtering, means that saving process will choose most suitable filter for each data row. Best compression, slowest execution time.