PnmParser Class Reference

This class handles reading/parsing of PBM/PGM/PPM image files. More...

#include <Raster/PnmParser.H>

Inheritance diagram for PnmParser:

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Collaboration diagram for PnmParser:

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List of all members.

Classes
struct	Rep
Public Member Functions
	PnmParser (const char *fname)
	Initialize with a PBM, PGM or PPM file.
	PnmParser (std::istream &strm)
	Initialize with a stream that will contain PBM, PGM or PPM data.
virtual	~PnmParser ()
	Destructor.
virtual GenericFrameSpec	getFrameSpec () const
	Get the specifications of the image without fully reading it.
virtual std::string	getComments () const
	Get the comments from the image without fully reading it.
virtual uint	getTagCount () const
	Get image tags if the image supports them.
virtual bool	getTag (uint tag, std::string &name, std::string &value) const
	Get image tags if the image supports them.
virtual GenericFrame	getFrame ()
	Get a GenericFrame representation from the raster file.

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Detailed Description

This class handles reading/parsing of PBM/PGM/PPM image files.

All six pbm modes are supported:

-P1: plain/ascii 1-bit black+white -P2: plain/ascii grayscale -P3: plain/ascii RGB -P4: raw/binary packed 1-bit black+white (8 pixels per byte) -P5: raw/binary 8-bit grayscale -P6: raw/binary 24-bit RGB

Definition at line 62 of file PnmParser.H.

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Constructor & Destructor Documentation

PnmParser::PnmParser

(

const char *

fname

)

Initialize with a PBM, PGM or PPM file.

Definition at line 356 of file PnmParser.C.

PnmParser::PnmParser

(

std::istream &

strm

)

Initialize with a stream that will contain PBM, PGM or PPM data.

Definition at line 363 of file PnmParser.C.

PnmParser::~PnmParser

(

)

[virtual]

Destructor.

Definition at line 370 of file PnmParser.C.

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Member Function Documentation

std::string PnmParser::getComments

(

)

const [virtual]

Get the comments from the image without fully reading it.

Implements RasterParser.

Definition at line 413 of file PnmParser.C.

GenericFrame PnmParser::getFrame

(

)

[virtual]

Get a GenericFrame representation from the raster file.

This can subsequently be converted to rgb, grayscale, floating-point, or video-yuv.

Implements RasterParser.

Definition at line 425 of file PnmParser.C.

References NO_INIT, PnmParser::Rep::parseBW(), PnmParser::Rep::parseGrayU16(), PnmParser::Rep::parseGrayU8(), PnmParser::Rep::parseRgbU16(), and PnmParser::Rep::parseRgbU8().

Referenced by BitObject::readFromStream().

GenericFrameSpec PnmParser::getFrameSpec

(

)

const [virtual]

Get the specifications of the image without fully reading it.

Implements RasterParser.

Definition at line 376 of file PnmParser.C.

References GenericFrame::GRAY_F32, GenericFrame::GRAY_U8, GenericFrame::RGB_F32, and GenericFrame::RGB_U8.

bool PnmParser::getTag	(	uint	tag,
		std::string &	name,
		std::string &	value
	)			const [virtual]

Get image tags if the image supports them.

Implements RasterParser.

Definition at line 421 of file PnmParser.C.

uint PnmParser::getTagCount

(

)

const [virtual]

Get image tags if the image supports them.

Implements RasterParser.

Definition at line 417 of file PnmParser.C.

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The documentation for this class was generated from the following files:

• src/Raster/PnmParser.H
• src/Raster/PnmParser.C