loci.formats

Class ChannelMerger

java.lang.Object

loci.formats.ReaderWrapper

loci.formats.ChannelMerger

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, IFormatHandler, IFormatReader, IMetadataConfigurable

public class ChannelMerger
extends ReaderWrapper

Logic to automatically merge channels in a file.

Source code:

Trac, Gitweb

Field Summary

Fields inherited from class loci.formats.ReaderWrapper

reader

Fields inherited from interface loci.formats.IFormatReader

CAN_GROUP, CANNOT_GROUP, MUST_GROUP

Constructor Summary

Constructors

Constructor and Description
ChannelMerger() Constructs a ChannelMerger around a new image reader.
ChannelMerger(IFormatReader r) Constructs a ChannelMerger with the given reader.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canMerge() Determines whether the channels in the file can be merged.
java.lang.String	getDimensionOrder() Gets a five-character string representing the dimension order in which planes will be returned.
int	getImageCount() Determines the number of image planes in the current file.
int	getIndex(int z, int c, int t) Gets the rasterized index corresponding to the given Z, C and T coordinates.
java.lang.Class<?>	getNativeDataType() Returns the native data type of image planes for this reader, as returned by IFormatReader.openPlane(int, int, int, int, int) or IFormatWriter.savePlane(int, java.lang.Object).
int	getOriginalIndex(int no) Returns the image number in the original dataset that corresponds to the given image number.
int[]	getZCTCoords(int index) Gets the Z, C and T coordinates corresponding to the given rasterized index value.
boolean	isIndexed() Gets whether the image planes are indexed color.
boolean	isInterleaved() Gets whether or not the channels are interleaved.
boolean	isRGB() Checks if the image planes in the file have more than one channel per IFormatReader.openBytes(int) call.
static ChannelMerger	makeChannelMerger(IFormatReader r) Converts the given reader into a ChannelMerger, wrapping if needed.
byte[]	openBytes(int no) Obtains the specified image plane from the current file as a byte array.
byte[]	openBytes(int no, byte[] buf) Obtains the specified image plane from the current file into a pre-allocated byte array of (sizeX * sizeY * bytesPerPixel * RGB channel count).
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.
byte[]	openBytes(int no, int x, int y, int w, int h) Obtains a sub-image of the specified image plane, whose upper-left corner is given by (x, y).

Methods inherited from class loci.formats.ReaderWrapper

close, close, coreIndexToSeries, duplicate, fileGroupOption, get16BitLookupTable, get8BitLookupTable, getAdvancedSeriesUsedFiles, getAdvancedUsedFiles, getBitsPerPixel, getChannelDimLengths, getChannelDimTypes, getCoreIndex, getCoreMetadata, getCoreMetadataList, getCurrentFile, getDatasetStructureDescription, getDomains, getEffectiveSizeC, getFormat, getGlobalMetadata, getMetadataOptions, getMetadataStore, getMetadataStoreRoot, getMetadataValue, getModuloC, getModuloT, getModuloZ, getOptimalTileHeight, getOptimalTileWidth, getPixelType, getPossibleDomains, getReader, getRequiredDirectories, getResolution, getResolutionCount, getRGBChannelCount, getSeries, getSeriesCount, getSeriesMetadata, getSeriesMetadataValue, getSeriesUsedFiles, getSeriesUsedFiles, getSizeC, getSizeT, getSizeX, getSizeY, getSizeZ, getSuffixes, getSupportedMetadataLevels, getThumbSizeX, getThumbSizeY, getUnderlyingReaders, getUsedFiles, getUsedFiles, hasCompanionFiles, hasFlattenedResolutions, isFalseColor, isGroupFiles, isInterleaved, isLittleEndian, isMetadataComplete, isMetadataFiltered, isNormalized, isOrderCertain, isOriginalMetadataPopulated, isSingleFile, isThisType, isThisType, isThisType, isThisType, isThumbnailSeries, openPlane, openThumbBytes, seriesToCoreIndex, setCoreIndex, setFlattenedResolutions, setGroupFiles, setId, setMetadataFiltered, setMetadataOptions, setMetadataStore, setNormalized, setOriginalMetadataPopulated, setResolution, setSeries, unwrap, unwrap, unwrap

Methods inherited from class java.lang.Object

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

Constructor Detail

ChannelMerger

public ChannelMerger()

Constructs a ChannelMerger around a new image reader.

ChannelMerger

public ChannelMerger(IFormatReader r)

Constructs a ChannelMerger with the given reader.

Method Detail

makeChannelMerger

public static ChannelMerger makeChannelMerger(IFormatReader r)

Converts the given reader into a ChannelMerger, wrapping if needed.

canMerge

public boolean canMerge()

Determines whether the channels in the file can be merged.

getOriginalIndex

public int getOriginalIndex(int no)
                     throws FormatException,
                            java.io.IOException

Returns the image number in the original dataset that corresponds to the given image number.

Parameters:

no - is an image number greater than or equal to 0 and less than getImageCount()

Returns:

the corresponding image number in the original (unmerged) data.

Throws:

FormatException

java.io.IOException

getImageCount

public int getImageCount()

Description copied from interface: IFormatReader

Determines the number of image planes in the current file.

Specified by:

getImageCount in interface IFormatReader

Overrides:

getImageCount in class ReaderWrapper

getDimensionOrder

public java.lang.String getDimensionOrder()

Description copied from interface: IFormatReader

Gets a five-character string representing the dimension order in which planes will be returned. Valid orders are:

• XYCTZ
• XYCZT
• XYTCZ
• XYTZC
• XYZCT
• XYZTC

In cases where the channels are interleaved (e.g., CXYTZ), C will be the first dimension after X and Y (e.g., XYCTZ) and the IFormatReader.isInterleaved() method will return true.

Specified by:

getDimensionOrder in interface IFormatReader

Overrides:

getDimensionOrder in class ReaderWrapper

isInterleaved

public boolean isInterleaved()

Description copied from interface: IFormatReader

Gets whether or not the channels are interleaved. This method exists because X and Y must appear first in the dimension order. For interleaved data, IFormatReader.getDimensionOrder() returns XYCTZ or XYCZT, and this method returns true. Note that this flag returns whether or not the data returned by IFormatReader.openBytes(int) is interleaved. In most cases, this will match the interleaving in the original file, but for some formats (e.g. TIFF) channel re-ordering is done internally and the return value of this method will not match what is in the original file.

Specified by:

isInterleaved in interface IFormatReader

Overrides:

isInterleaved in class ReaderWrapper

isRGB

public boolean isRGB()

Description copied from interface: IFormatReader

Checks if the image planes in the file have more than one channel per IFormatReader.openBytes(int) call. This method returns true if and only if IFormatReader.getRGBChannelCount() returns a value greater than 1.

Specified by:

isRGB in interface IFormatReader

Overrides:

isRGB in class ReaderWrapper

isIndexed

public boolean isIndexed()

Description copied from interface: IFormatReader

Gets whether the image planes are indexed color. This value has no impact on IFormatReader.getSizeC(), IFormatReader.getEffectiveSizeC() or IFormatReader.getRGBChannelCount().

Specified by:

isIndexed in interface IFormatReader

Overrides:

isIndexed in class ReaderWrapper

openBytes

public byte[] openBytes(int no)
                 throws FormatException,
                        java.io.IOException

Description copied from interface: IFormatReader

Obtains the specified image plane from the current file as a byte array.

Specified by:

openBytes in interface IFormatReader

Overrides:

openBytes in class ReaderWrapper

Throws:

FormatException

java.io.IOException

See Also:

IFormatReader.openBytes(int, byte[])

openBytes

public byte[] openBytes(int no,
               byte[] buf)
                 throws FormatException,
                        java.io.IOException

Description copied from interface: IFormatReader

Obtains the specified image plane from the current file into a pre-allocated byte array of (sizeX * sizeY * bytesPerPixel * RGB channel count).

Specified by:

openBytes in interface IFormatReader

Overrides:

openBytes in class ReaderWrapper

Parameters:

no - the image index within the file.

buf - a pre-allocated buffer.

Returns:

the pre-allocated buffer buf for convenience.

Throws:

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

java.io.IOException - if there was a problem reading the file.

openBytes

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

Description copied from interface: IFormatReader

Obtains a sub-image of the specified image plane, whose upper-left corner is given by (x, y).

Specified by:

openBytes in interface IFormatReader

Overrides:

openBytes in class ReaderWrapper

Throws:

FormatException

java.io.IOException

openBytes

public byte[] openBytes(int no,
               byte[] buf,
               int x,
               int y,
               int w,
               int h)
                 throws FormatException,
                        java.io.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 ReaderWrapper

Parameters:

no - the image index within the file.

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.

java.io.IOException - if there was a problem reading the file.

getIndex

public int getIndex(int z,
           int c,
           int t)

Description copied from interface: IFormatReader

Gets the rasterized index corresponding to the given Z, C and T coordinates.

Specified by:

getIndex in interface IFormatReader

Overrides:

getIndex in class ReaderWrapper

getZCTCoords

public int[] getZCTCoords(int index)

Description copied from interface: IFormatReader

Gets the Z, C and T coordinates corresponding to the given rasterized index value.

Specified by:

getZCTCoords in interface IFormatReader

Overrides:

getZCTCoords in class ReaderWrapper

getNativeDataType

public java.lang.Class<?> getNativeDataType()

Description copied from interface: IFormatHandler

Returns the native data type of image planes for this reader, as returned by IFormatReader.openPlane(int, int, int, int, int) or IFormatWriter.savePlane(int, java.lang.Object). For most readers this type will be a byte array; however, some readers call external APIs that work with other types such as BufferedImage.

Specified by:

getNativeDataType in interface IFormatHandler

Overrides:

getNativeDataType in class ReaderWrapper