loci.formats

Class ChannelSeparator

java.lang.Object

loci.formats.ReaderWrapper

loci.formats.ChannelSeparator

All Implemented Interfaces:

Closeable, AutoCloseable, IFormatHandler, IFormatReader, IMetadataConfigurable

public class ChannelSeparator
extends ReaderWrapper

Logic to automatically separate the 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
ChannelSeparator() Constructs a ChannelSeparator around a new image reader.
ChannelSeparator(IFormatReader r) Constructs a ChannelSeparator with the given reader.

Method Summary

Methods

Modifier and Type	Method and Description
void	close(boolean fileOnly) Closes the currently open file.
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.
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	isRGB() Checks if the image planes in the file have more than one channel per IFormatReader.openBytes(int) call.
static ChannelSeparator	makeChannelSeparator(IFormatReader r) Converts the given reader into a ChannelSeparator, 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).
byte[]	openThumbBytes(int no) Obtains a thumbnail for the specified image plane from the current file, as a byte array.
void	setId(String id) Sets the current file name.

Methods inherited from class loci.formats.ReaderWrapper

close, copyCoreMetadata, duplicate, fileGroupOption, get16BitLookupTable, get8BitLookupTable, getAdvancedSeriesUsedFiles, getAdvancedUsedFiles, getBitsPerPixel, getChannelDimLengths, getChannelDimTypes, getCoreIndex, getCoreMetadata, getCurrentFile, getDatasetStructureDescription, getDomains, getEffectiveSizeC, getFormat, getGlobalMetadata, getMetadata, getMetadataOptions, getMetadataStore, getMetadataStoreRoot, getMetadataValue, getOptimalTileHeight, getOptimalTileWidth, getPixelType, getPossibleDomains, getReader, 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, isIndexed, isInterleaved, isInterleaved, isLittleEndian, isMetadataCollected, isMetadataComplete, isMetadataFiltered, isNormalized, isOrderCertain, isOriginalMetadataPopulated, isSingleFile, isThisType, isThisType, isThisType, isThisType, isThumbnailSeries, openPlane, setFlattenedResolutions, setGroupFiles, setMetadataCollected, 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

ChannelSeparator

public ChannelSeparator()

Constructs a ChannelSeparator around a new image reader.

ChannelSeparator

public ChannelSeparator(IFormatReader r)

Constructs a ChannelSeparator with the given reader.

Method Detail

makeChannelSeparator

public static ChannelSeparator makeChannelSeparator(IFormatReader r)

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

getOriginalIndex

public int getOriginalIndex(int no)

Returns the image number in the original dataset that corresponds to the given image number. For instance, if the original dataset was a single RGB image and the given image number is 2, the return value will be 0.

Parameters:

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

Returns:

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

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 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

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

openBytes

public byte[] openBytes(int no)
                 throws FormatException,
                        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

IOException

See Also:

IFormatReader.openBytes(int, byte[])

openBytes

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

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,
                        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

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 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.

IOException - if there was a problem reading the file.

openThumbBytes

public byte[] openThumbBytes(int no)
                      throws FormatException,
                             IOException

Description copied from interface: IFormatReader

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

Specified by:

openThumbBytes in interface IFormatReader

Overrides:

openThumbBytes in class ReaderWrapper

Throws:

FormatException

IOException

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 ReaderWrapper

Throws:

IOException

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 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

setId

public void setId(String id)
           throws FormatException,
                  IOException

Description copied from interface: IFormatHandler

Sets the current file name.

Specified by:

setId in interface IFormatHandler

Overrides:

setId in class ReaderWrapper

Throws:

FormatException

IOException