Package loci.formats.in

Class DNGReader

java.lang.Object

loci.formats.FormatHandler

loci.formats.FormatReader

loci.formats.SubResolutionFormatReader

loci.formats.in.MinimalTiffReader

loci.formats.in.BaseTiffReader

loci.formats.in.DNGReader

All Implemented Interfaces:

Closeable, AutoCloseable, ICompressedTileReader, IFormatHandler, IFormatReader, IMetadataConfigurable, IPyramidHandler

public class DNGReader
extends BaseTiffReader

DNGReader is the file format reader for Canon DNG (TIFF) files.

Author:

Melissa Linkert melissa at glencoesoftware.com

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	CANON_TAG
private Object	cfaPattern
private static final int	COLOR_MAP
private int	lastIndex
private byte[]	lastPlane
private static final org.slf4j.Logger	LOGGER	Logger for this class.
protected IFD	original	The original IFD.
private static final int	TIFF_EPS_STANDARD
private static final int	WHITE_BALANCE_RGB_COEFFS
private double[]	whiteBalance

Fields inherited from class loci.formats.in.BaseTiffReader

DATE_FORMATS

Fields inherited from class loci.formats.in.MinimalTiffReader

canSeparateSeries, equalStrips, ifds, mergeSubIFDs, noSubresolutions, seriesToIFD, subResolutionIFDs, thumbnailIFDs, tiffParser, use64Bit

Fields inherited from class loci.formats.SubResolutionFormatReader

core

Fields inherited from class loci.formats.FormatReader

coreIndex, datasetDescription, domains, fillColor, filterMetadata, flattenedResolutions, group, hasCompanionFiles, in, indexedAsRGB, metadata, metadataStore, normalizeData, resolution, saveOriginalMetadata, series, suffixNecessary, suffixSufficient, THUMBNAIL_DIMENSION

Fields inherited from class loci.formats.FormatHandler

COMPRESSION_SUFFIXES, currentId, format, metadataOptions, suffixes

Fields inherited from interface loci.formats.IFormatReader

CAN_GROUP, CANNOT_GROUP, MUST_GROUP

Constructor Summary

Constructors

Constructor	Description
DNGReader()	Constructs a new DNG reader.

Method Summary

Modifier and Type	Method	Description
private short	adjustForWhiteBalance(short val, int index)
void	close(boolean fileOnly)	Closes the currently open file.
protected void	initFile(String id)	Initializes the given file (parsing header information, etc.).
protected void	initStandardMetadata()	Parses standard metadata.
boolean	isThisType(loci.common.RandomAccessInputStream stream)	Checks if the given stream is a valid stream for this file format.
byte[]	openBytes(int no, byte[] buf, int x, int y, int w, int h)	Obtains a sub-image of the specified image plane into a pre-allocated byte array.

Methods inherited from class loci.formats.in.BaseTiffReader

getExifTagName, getImageCreationDate, initMetadata, initMetadataStore, put, put, put, put, put, put, put, put, put, put, putDouble, putInt, putString

Methods inherited from class loci.formats.in.MinimalTiffReader

copyTile, get16BitLookupTable, get8BitLookupTable, getCompressedByteCount, getIFDs, getOptimalTileHeight, getOptimalTileWidth, getThumbnailIFDs, getThumbSizeX, getThumbSizeY, getTileIndex, initTiffParser, openThumbBytes, reopenFile, setResolutionLevel

Methods inherited from class loci.formats.SubResolutionFormatReader

coreIndexToSeries, flattenHashtables, getCoreIndex, getCoreMetadataList, getCurrentCore, getResolution, getResolutionCount, getSeries, getSeriesCount, seriesToCoreIndex, setCoreIndex, setResolution, setSeries

Methods inherited from class loci.formats.FormatReader

addGlobalMeta, addGlobalMeta, addGlobalMeta, addGlobalMeta, addGlobalMeta, addGlobalMeta, addGlobalMeta, addGlobalMeta, addGlobalMeta, addGlobalMetaList, addMeta, addMetaList, addSeriesMeta, addSeriesMeta, addSeriesMeta, addSeriesMeta, addSeriesMeta, addSeriesMeta, addSeriesMeta, addSeriesMeta, addSeriesMeta, addSeriesMetaList, close, fileGroupOption, getAcquisitionMode, getAdvancedSeriesUsedFiles, getAdvancedUsedFiles, getArcType, getAvailableOptions, getBinning, getBitsPerPixel, getCompression, getContrastMethod, getCorrection, getCurrentFile, getDatasetStructureDescription, getDetectorType, getDimensionOrder, getDimensionOrder, getDomains, getEffectiveSizeC, getExperimentType, getFilamentType, getFillColor, getFillRule, getFilterType, getFontFamily, getFontStyle, getGlobalMeta, getGlobalMetadata, getIlluminationType, getImageCount, getImmersion, getIndex, getIndex, getLaserMedium, getLaserType, getMarker, getMedium, getMetadataStore, getMetadataStoreRoot, getMetadataValue, getMicrobeamManipulationType, getMicroscopeType, getModuloC, getModuloT, getModuloZ, getNamingConvention, getPixelType, getPixelType, getPossibleDomains, getPulse, getRequiredDirectories, getRGBChannelCount, getRotationTransform, getSeriesMeta, getSeriesMetadata, getSeriesMetadataValue, getSeriesUsedFiles, getSeriesUsedFiles, getSizeC, getSizeT, getSizeX, getSizeY, getSizeZ, getTileColumns, getTileRows, getUnderlyingReaders, getUsedFiles, getUsedFiles, getZCTCoords, getZCTModuloCoords, hasCompanionFiles, hasFlattenedResolutions, isFalseColor, isGroupFiles, isIndexed, isInterleaved, isInterleaved, isLittleEndian, isMetadataComplete, isMetadataFiltered, isNormalized, isOrderCertain, isOriginalMetadataPopulated, isRGB, isSingleFile, isThisType, isThisType, isThisType, isThumbnailSeries, isUsedFile, makeFilterMetadata, openBytes, openBytes, openBytes, openPlane, readPlane, readPlane, readPlane, setFillColor, setFlattenedResolutions, setGroupFiles, setId, setMetadataFiltered, setMetadataStore, setNormalized, setOriginalMetadataPopulated, updateMetadataLists

Methods inherited from class loci.formats.FormatHandler

checkSuffix, checkSuffix, getFormat, getMetadataOptions, getNativeDataType, getSuffixes, getSupportedMetadataLevels, setMetadataOptions

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface loci.formats.ICompressedTileReader

getTileCodec, getTileCodecOptions, openCompressedBytes, openCompressedBytes

Methods inherited from interface loci.formats.IFormatHandler

getFormat, getNativeDataType, getSuffixes

Methods inherited from interface loci.formats.IMetadataConfigurable

getMetadataOptions, getSupportedMetadataLevels, setMetadataOptions

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

Logger for this class.

CANON_TAG

private static final int CANON_TAG

See Also:

• Constant Field Values

TIFF_EPS_STANDARD

private static final int TIFF_EPS_STANDARD

See Also:

• Constant Field Values

COLOR_MAP

private static final int COLOR_MAP

See Also:

• Constant Field Values

WHITE_BALANCE_RGB_COEFFS

private static final int WHITE_BALANCE_RGB_COEFFS

See Also:

• Constant Field Values

original

protected IFD original

The original IFD.

whiteBalance

private double[] whiteBalance

cfaPattern

private Object cfaPattern

lastPlane

private byte[] lastPlane

lastIndex

private int lastIndex

Constructor Details

DNGReader

public DNGReader()

Constructs a new DNG reader.

Method Details

isThisType

public boolean isThisType(loci.common.RandomAccessInputStream stream)
                   throws IOException

Description copied from interface: IFormatReader

Checks if the given stream is a valid stream for this file format. The number of bytes read is format-dependent.

Specified by:

isThisType in interface IFormatReader

Overrides:

isThisType in class MinimalTiffReader

Parameters:

stream - A RandomAccessInputStream representing the file to check. The first byte in the stream is assumed to be the first byte in the file.

Returns:

true if the file represented by the stream can be read by this reader; false otherwise.

Throws:

IOException

openBytes

public byte[] openBytes(int no,
 byte[] buf,
 int x,
 int y,
 int w,
 int h)
                 throws FormatException,
IOException

Description copied from interface: IFormatReader

Obtains a sub-image of the specified image plane into a pre-allocated byte array.

Specified by:

openBytes in interface IFormatReader

Overrides:

openBytes in class MinimalTiffReader

Parameters:

no - the plane index within the current series.

buf - a pre-allocated buffer.

x - X coordinate of the upper-left corner of the sub-image

y - Y coordinate of the upper-left corner of the sub-image

w - width of the sub-image

h - height of the sub-image

Returns:

the pre-allocated buffer buf for convenience.

Throws:

FormatException - if there was a problem parsing the metadata of the file.

IOException - if there was a problem reading the file.

See Also:

• IFormatReader.openBytes(int, byte[], int, int, int, int)

close

public void close(boolean fileOnly)
           throws IOException

Description copied from interface: IFormatReader

Closes the currently open file. If the flag is set, this is all that happens; if unset, it is equivalent to calling Closeable.close().

Specified by:

close in interface IFormatReader

Overrides:

close in class MinimalTiffReader

Throws:

IOException

initStandardMetadata

protected void initStandardMetadata()
                             throws FormatException,
IOException

Description copied from class: BaseTiffReader

Parses standard metadata. NOTE: Absolutely no calls to the metadata store should be made in this method or methods that override this method. Data will be overwritten if you do so.

Overrides:

initStandardMetadata in class BaseTiffReader

Throws:

FormatException

IOException

initFile

protected void initFile(String id)
                 throws FormatException,
IOException

Description copied from class: SubResolutionFormatReader

Initializes the given file (parsing header information, etc.). Most subclasses should override this method to perform initialization operations such as parsing metadata.

Overrides:

initFile in class BaseTiffReader

Throws:

FormatException - if a parsing error occurs processing the file.

IOException - if an I/O error occurs processing the file

adjustForWhiteBalance

private short adjustForWhiteBalance(short val,
 int index)