java.lang.Object
- org.jmrtd.lds.AbstractLDSInfo
- - org.jmrtd.lds.AbstractListInfo<FingerImageInfo>
  - - org.jmrtd.lds.iso19794.FingerInfo

All Implemented Interfaces:

Serializable, BiometricDataBlock, LDSElement
```
public class FingerInfo
extends AbstractListInfo<FingerImageInfo>
implements BiometricDataBlock
```
Fingerprint general record header and finger image data blocks based on Section 7 and Table 2 of ISO/IEC FCD 19794-4 aka Annex F.

Version:

$Revision: 1799 $

Author:

The JMRTD team ([email protected])

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`COMPRESSION_JPEG`	Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
`static int`	`COMPRESSION_JPEG2000`	Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
`static int`	`COMPRESSION_PNG`	Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
`static int`	`COMPRESSION_UNCOMPRESSED_BIT_PACKED`	Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
`static int`	`COMPRESSION_UNCOMPRESSED_NO_BIT_PACKING`	Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
`static int`	`COMPRESSION_WSQ`	Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
`static int`	`SCALE_UNITS_PPCM`	Scale units points per centimeter.
`static int`	`SCALE_UNITS_PPI`	Scale units points per inch.

Constructor Summary

Constructors
Constructor	Description
`FingerInfo(int captureDeviceId, int acquisitionLevel, int scaleUnits, int scanResolutionHorizontal, int scanResolutionVertical, int imageResolutionHorizontal, int imageResolutionVertical, int depth, int compressionAlgorithm, List<FingerImageInfo> fingerImageInfos)`	Constructs a finger info record.
`FingerInfo(InputStream inputStream)`	Constructs a finger info record.
`FingerInfo(StandardBiometricHeader sbh, int captureDeviceId, int acquisitionLevel, int scaleUnits, int scanResolutionHorizontal, int scanResolutionVertical, int imageResolutionHorizontal, int imageResolutionVertical, int depth, int compressionAlgorithm, List<FingerImageInfo> fingerImageInfos)`	Constructs a finger info record.
`FingerInfo(StandardBiometricHeader sbh, InputStream inputStream)`	Constructs a finger info record.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addFingerImageInfo(FingerImageInfo fingerImageInfo)`	Adds a finger image info to this finger info.
`boolean`	`equals(Object obj)`
`int`	`getAcquisitionLevel()`	Returns the image acquisition level as specified in Section 7.1.5 and Table 1 of ISO 19794-4.
`int`	`getCaptureDeviceId()`	Returns the capture device identifier as specified in Section 7.1.4 of ISO 19794-4.
`int`	`getCompressionAlgorithm()`	Returns the compression algorithm as specified in Section 7.1.13 of ISO 19794-4.
`int`	`getDepth()`	Returns the pixel depth.
`List<FingerImageInfo>`	`getFingerImageInfos()`	Returns the finger image infos embedded in this finger info.
`int`	`getHorizontalImageResolution()`	Returns the rounded image resolution used in the horizontal direction as specified in Section 7.1.10 of ISO 19794-4.
`int`	`getHorizontalScanningResolution()`	Returns the rounded scanning resolution used in the horizontal direction.
`int`	`getScaleUnits()`	Returns the units used to describe the scanning and resolution of the image.
`StandardBiometricHeader`	`getStandardBiometricHeader()`	Returns the standard biometric header of this biometric data block.
`int`	`getVerticalImageResolution()`	Returns the rounded image resolution used in the vertical direction as specified in Section 7.1.11 of ISO 19794-4.
`int`	`getVerticalScanningResolution()`	Returns the rounded scanning resolution used in the vertical direction.
`int`	`hashCode()`
`void`	`readObject(InputStream inputStream)`	Reads a finger info from an input stream.
`void`	`removeFingerImageInfo(int index)`	Removes a finger image info from this finger info.
`String`	`toString()`
`void`	`writeObject(OutputStream outputStream)`	Writes this finger info to an output stream.

Methods inherited from class org.jmrtd.lds.AbstractLDSInfo
getEncoded

Methods inherited from class org.jmrtd.lds.AbstractListInfo
add, addAll, getSubRecords, remove

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - SCALE_UNITS_PPI
```
public static final int SCALE_UNITS_PPI
```
    Scale units points per inch.
    
    See Also:
    
    Constant Field Values
  - SCALE_UNITS_PPCM
```
public static final int SCALE_UNITS_PPCM
```
    Scale units points per centimeter.
    
    See Also:
    
    Constant Field Values
  - COMPRESSION_UNCOMPRESSED_NO_BIT_PACKING
```
public static final int COMPRESSION_UNCOMPRESSED_NO_BIT_PACKING
```
    Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
    
    See Also:
    
    Constant Field Values
  - COMPRESSION_UNCOMPRESSED_BIT_PACKED
```
public static final int COMPRESSION_UNCOMPRESSED_BIT_PACKED
```
    Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
    
    See Also:
    
    Constant Field Values
  - COMPRESSION_WSQ
```
public static final int COMPRESSION_WSQ
```
    Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
    
    See Also:
    
    Constant Field Values
  - COMPRESSION_JPEG
```
public static final int COMPRESSION_JPEG
```
    Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
    
    See Also:
    
    Constant Field Values
  - COMPRESSION_JPEG2000
```
public static final int COMPRESSION_JPEG2000
```
    Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
    
    See Also:
    
    Constant Field Values
  - COMPRESSION_PNG
```
public static final int COMPRESSION_PNG
```
    Image compression algorithm type as specified in Section 7.1.13 and Table 3 of ISO 19794-4.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - FingerInfo
```
public FingerInfo(int captureDeviceId,
                  int acquisitionLevel,
                  int scaleUnits,
                  int scanResolutionHorizontal,
                  int scanResolutionVertical,
                  int imageResolutionHorizontal,
                  int imageResolutionVertical,
                  int depth,
                  int compressionAlgorithm,
                  List<FingerImageInfo> fingerImageInfos)
```
    Constructs a finger info record.
    
    Parameters:
    
    captureDeviceId - capture device identifier
    
    acquisitionLevel - acquisition level
    
    scaleUnits - scale units, one of SCALE_UNITS_PPI, SCALE_UNITS_PPCM
    
    scanResolutionHorizontal - horizontal scan resolution
    
    scanResolutionVertical - vertical scan resolution
    
    imageResolutionHorizontal - horizontal image resolution
    
    imageResolutionVertical - vertical image resolution
    
    depth - image depth
    
    compressionAlgorithm - compression algorithm, see getCompressionAlgorithm() for valid values
    
    fingerImageInfos - the image records
  - FingerInfo
```
public FingerInfo(StandardBiometricHeader sbh,
                  int captureDeviceId,
                  int acquisitionLevel,
                  int scaleUnits,
                  int scanResolutionHorizontal,
                  int scanResolutionVertical,
                  int imageResolutionHorizontal,
                  int imageResolutionVertical,
                  int depth,
                  int compressionAlgorithm,
                  List<FingerImageInfo> fingerImageInfos)
```
    Constructs a finger info record.
    
    Parameters:
    
    sbh - standard biometric header to use
    
    captureDeviceId - capture device identifier
    
    acquisitionLevel - acquisition level
    
    scaleUnits - scale units, one of SCALE_UNITS_PPI, SCALE_UNITS_PPCM
    
    scanResolutionHorizontal - horizontal scan resolution
    
    scanResolutionVertical - vertical scan resolution
    
    imageResolutionHorizontal - horizontal image resolution
    
    imageResolutionVertical - vertical image resolution
    
    depth - image depth
    
    compressionAlgorithm - compression algorithm, see getCompressionAlgorithm() for valid values
    
    fingerImageInfos - the image records
  - FingerInfo
```
public FingerInfo(InputStream inputStream)
           throws IOException
```
    Constructs a finger info record.
    
    Parameters:
    
    inputStream - input stream
    
    Throws:
    
    IOException - on I/O error
  - FingerInfo
```
public FingerInfo(StandardBiometricHeader sbh,
                  InputStream inputStream)
           throws IOException
```
    Constructs a finger info record.
    
    Parameters:
    
    sbh - standard biometric header to use
    
    inputStream - input stream
    
    Throws:
    
    IOException - on I/O error
- Method Detail
  - getCaptureDeviceId
```
public int getCaptureDeviceId()
```
    Returns the capture device identifier as specified in Section 7.1.4 of ISO 19794-4. Only the low-order 12 bits are significant.
    
    Returns:
    
    the capture device identifier
  - getAcquisitionLevel
```
public int getAcquisitionLevel()
```
    Returns the image acquisition level as specified in Section 7.1.5 and Table 1 of ISO 19794-4. Valid settings are: 10 (125 ppi), 20 (250 ppi), 30 (500 ppi), 31 (500 ppi), 40 (1000 ppi), 41 (1000 ppi).
    
    Returns:
    
    image acquisition level
  - getScaleUnits
```
public int getScaleUnits()
```
    Returns the units used to describe the scanning and resolution of the image. Either PPI or PPCM. As specified in Section 7.1.7 of ISO 19794-4.
    
    Returns:
    
    scale units type
  - getHorizontalScanningResolution
```
public int getHorizontalScanningResolution()
```
    Returns the rounded scanning resolution used in the horizontal direction. As specified in Section 7.1.8 of ISO 19794-4. Depending on getScaleUnits() the result is either in PPI or PPCM.
    
    Returns:
    
    the horizontal scanning resolution
  - getVerticalScanningResolution
```
public int getVerticalScanningResolution()
```
    Returns the rounded scanning resolution used in the vertical direction. As specified in Section 7.1.9 of ISO 19794-4. Depending on getScaleUnits() the result is either in PPI or PPCM.
    
    Returns:
    
    the vertical scanning resolution
  - getHorizontalImageResolution
```
public int getHorizontalImageResolution()
```
    Returns the rounded image resolution used in the horizontal direction as specified in Section 7.1.10 of ISO 19794-4. Depending on getScaleUnits() the result is either in PPI or PPCM.
    
    Returns:
    
    the horizontal image resolution
  - getVerticalImageResolution
```
public int getVerticalImageResolution()
```
    Returns the rounded image resolution used in the vertical direction as specified in Section 7.1.11 of ISO 19794-4. Depending on getScaleUnits() the result is either in PPI or PPCM.
    
    Returns:
    
    the vertical image resolution
  - getDepth
```
public int getDepth()
```
    Returns the pixel depth. As specified in Section 7.1.12 of ISO 19794-4. Valid values are between 0x01 to 0x10.
    
    Returns:
    
    the pixel depth
  - getCompressionAlgorithm
```
public int getCompressionAlgorithm()
```
    Returns the compression algorithm as specified in Section 7.1.13 of ISO 19794-4. One of COMPRESSION_UNCOMPRESSED_BIT_PACKED, COMPRESSION_UNCOMPRESSED_NO_BIT_PACKING, COMPRESSION_JPEG, COMPRESSION_JPEG2000, COMPRESSION_PNG, COMPRESSION_WSQ.
    
    Returns:
    
    a constant representing the used image compression algorithm
  - readObject
```
public void readObject(InputStream inputStream)
                throws IOException
```
    Reads a finger info from an input stream.
    
    Specified by:
    
    readObject in class AbstractListInfo<FingerImageInfo>
    
    Parameters:
    
    inputStream - an input stream
    
    Throws:
    
    IOException - if reading fails
  - writeObject
```
public void writeObject(OutputStream outputStream)
                 throws IOException
```
    Writes this finger info to an output stream.
    
    Specified by:
    
    writeObject in class AbstractListInfo<FingerImageInfo>
    
    Parameters:
    
    outputStream - an output stream
    
    Throws:
    
    IOException - if writing fails
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class AbstractListInfo<FingerImageInfo>
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class AbstractListInfo<FingerImageInfo>
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getStandardBiometricHeader
```
public StandardBiometricHeader getStandardBiometricHeader()
```
    Returns the standard biometric header of this biometric data block.
    
    Specified by:
    
    getStandardBiometricHeader in interface BiometricDataBlock
    
    Returns:
    
    the standard biometric header
  - getFingerImageInfos
```
public List<FingerImageInfo> getFingerImageInfos()
```
    Returns the finger image infos embedded in this finger info.
    
    Returns:
    
    the embedded finger image infos
  - addFingerImageInfo
```
public void addFingerImageInfo(FingerImageInfo fingerImageInfo)
```
    Adds a finger image info to this finger info.
    
    Parameters:
    
    fingerImageInfo - the finger image info to add
  - removeFingerImageInfo
```
public void removeFingerImageInfo(int index)
```
    Removes a finger image info from this finger info.
    
    Parameters:
    
    index - the index of the finger image info to remove

Class FingerInfo

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.jmrtd.lds.AbstractLDSInfo

Methods inherited from class org.jmrtd.lds.AbstractListInfo

Methods inherited from class java.lang.Object

Field Detail

SCALE_UNITS_PPI

SCALE_UNITS_PPCM

COMPRESSION_UNCOMPRESSED_NO_BIT_PACKING

COMPRESSION_UNCOMPRESSED_BIT_PACKED

COMPRESSION_WSQ

COMPRESSION_JPEG

COMPRESSION_JPEG2000

COMPRESSION_PNG

Constructor Detail

FingerInfo

FingerInfo

FingerInfo

FingerInfo

Method Detail

getCaptureDeviceId

getAcquisitionLevel

getScaleUnits

getHorizontalScanningResolution

getVerticalScanningResolution

getHorizontalImageResolution

getVerticalImageResolution

getDepth

getCompressionAlgorithm

readObject

writeObject

hashCode

equals

toString

getStandardBiometricHeader

getFingerImageInfos

addFingerImageInfo

removeFingerImageInfo