Package Hjg.Pngcs

Namespaces
package	Chunks
package	Zlib

Classes
class	FileHelper
	A few utility static methods to read and write files More...
class	FilterWriteStrategy
	Manages the writer strategy for selecting the internal png predictor filter
class	ImageInfo
	Simple immutable wrapper for basic image info More...
class	ImageLine
	Lightweight wrapper for an image scanline, for read and write More...
class	ImageLineHelper
	Bunch of utility static methods to process/analyze an image line. More...
class	ImageLines
	Wraps a set of rows from a image, read in a single operation, stored in a int[][] or byte[][] matrix More...
class	PngCsUtils
	Utility functions for C# porting
class	PngDeinterlacer
class	PngHelperInternal
	Some utility static methods for internal use. More...
class	PngIDatChunkInputStream
	Reads IDAT chunks
class	PngIDatChunkOutputStream
	outputs the stream for IDAT chunk , fragmented at fixed size (32k default).
class	PngjBadCrcException
	Exception for CRC check More...
class	PngjException
	Gral exception class for PNGCS library More...
class	PngjExceptionInternal
	Exception for internal problems More...
class	PngjInputException
	Exception associated with input (reading) operations More...
class	PngjOutputException
	Exception associated with input (reading) operations More...
class	PngjUnsupportedException
	Exception for unsupported operation or feature More...
class	PngReader
	Reads a PNG image, line by line More...
class	PngWriter
	Writes a PNG image, line by line. More...
class	ProgressiveOutputStream
	stream that outputs to memory and allows to flush fragments every 'size' bytes to some other destination

Enumerations
enum	FilterType {   FILTER_NONE = 0, FILTER_SUB = 1, FILTER_UP = 2, FILTER_AVERAGE = 3,   FILTER_PAETH = 4, FILTER_DEFAULT = -1, FILTER_AGGRESSIVE = -2, FILTER_VERYAGGRESSIVE = -3,   FILTER_CYCLIC = -50, FILTER_UNKNOWN = -100 }
	Internal PNG predictor filter, or a strategy to select it. More...

Enumeration Type Documentation

enum Hjg.Pngcs.FilterType

Internal PNG predictor filter, or a strategy to select it.

Enumerator:

FILTER_NONE	No filtering
FILTER_SUB	SUB filter: uses same row
FILTER_UP	UP filter: uses previous row
FILTER_AVERAGE	AVERAGE filter: uses neighbors
FILTER_PAETH	PAETH predictor
FILTER_DEFAULT	Default strategy: select one of the standard filters depending on global image parameters
FILTER_AGGRESSIVE	Aggressive strategy: select dinamically the filters, trying every 8 rows
FILTER_VERYAGGRESSIVE	Very aggressive and slow strategy: tries all filters for each row
FILTER_CYCLIC	Uses all fiters, one for lines, in cyclic way. Only useful for testing.
FILTER_UNKNOWN	Not specified, placeholder for unknown or NA filters.