omeis.providers.re.quantum

Class QuantumFactory

java.lang.Object

omeis.providers.re.quantum.QuantumFactory

public class QuantumFactory
extends Object

Factory to create objects to carry out quantization for a given context. This class defines the constants to be used to identify a QuantumMap within a quantization context. It also defines the constants to be used to define the bit depth of the quantized output interval.

Since:

OME2.2

Version:

2.2 (Internal version: $Revision$ $Date: 2005/06/10 17:37:26 $)

Author:

Jean-Marie Burel j.burel@dundee.ac.uk,
Andrea Falconi a.falconi@dundee.ac.uk

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEPTH_1BIT Flag to select a 1-bit depth (=2^1-1) output interval.
static int	DEPTH_2BIT Flag to select a 2-bit depth (=2^2-1) output interval.
static int	DEPTH_3BIT Flag to select a 3-bit depth (=2^3-1) output interval.
static int	DEPTH_4BIT Flag to select a 4-bit depth (=2^4-1) output interval.
static int	DEPTH_5BIT Flag to select a 5-bit depth (=2^5-1) output interval.
static int	DEPTH_6BIT Flag to select a 6-bit depth (=2^6-1) output interval.
static int	DEPTH_7BIT Flag to select a 7-bit depth (=2^7-1) output interval.
static int	DEPTH_8BIT Flag to select a 8-bit depth (=2^8-1) output interval.
static String	EXPONENTIAL Flag to select a exponential map for the quantization process.
static String	LINEAR Flag to select a linear map for the quantization process.
static String	LOGARITHMIC Flag to select a logarithmic map for the quantization process.
static boolean	NOISE_REDUCTION Default value.
static String	POLYNOMIAL Flag to select a polynomial map for the quantization process.

Constructor Summary

Constructors

Constructor and Description
QuantumFactory(List<Family> families) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Family	getFamily(String value) Helper method to retrieve a Family enumeration from the database.
QuantumStrategy	getStrategy(QuantumDef qd, Pixels pixels) Returns a strategy to carry out the quantization process whose context is defined by pd.

Methods inherited from class java.lang.Object

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

Field Detail

DEPTH_1BIT

public static final int DEPTH_1BIT

Flag to select a 1-bit depth (=2^1-1) output interval.

See Also:

Constant Field Values

DEPTH_2BIT

public static final int DEPTH_2BIT

Flag to select a 2-bit depth (=2^2-1) output interval.

See Also:

Constant Field Values

DEPTH_3BIT

public static final int DEPTH_3BIT

Flag to select a 3-bit depth (=2^3-1) output interval.

See Also:

Constant Field Values

DEPTH_4BIT

public static final int DEPTH_4BIT

Flag to select a 4-bit depth (=2^4-1) output interval.

See Also:

Constant Field Values

DEPTH_5BIT

public static final int DEPTH_5BIT

Flag to select a 5-bit depth (=2^5-1) output interval.

See Also:

Constant Field Values

DEPTH_6BIT

public static final int DEPTH_6BIT

Flag to select a 6-bit depth (=2^6-1) output interval.

See Also:

Constant Field Values

DEPTH_7BIT

public static final int DEPTH_7BIT

Flag to select a 7-bit depth (=2^7-1) output interval.

See Also:

Constant Field Values

DEPTH_8BIT

public static final int DEPTH_8BIT

Flag to select a 8-bit depth (=2^8-1) output interval.

See Also:

Constant Field Values

LINEAR

public static final String LINEAR

Flag to select a linear map for the quantization process. The equation of the map is of the form y = a*x + b. The a and b coefficients depend on the input and output (codomain) interval of the map.

See Also:

Constant Field Values

EXPONENTIAL

public static final String EXPONENTIAL

Flag to select a exponential map for the quantization process. The equation of the map is of the form y = a*(exp(x^k)) + b. The a and b coefficients depend on the input and output (codomain) interval of the map. The k coefficient is the one specified by the context.

See Also:

Constant Field Values

LOGARITHMIC

public static final String LOGARITHMIC

Flag to select a logarithmic map for the quantization process. The equation of the map is of the form y = a*log(x) + b. The a and b coefficients depend on the input and output (codomain) interval of the map.

See Also:

Constant Field Values

POLYNOMIAL

public static final String POLYNOMIAL

Flag to select a polynomial map for the quantization process. The equation of the map is of the form y = a*x^k + b. The a and b coefficients depend on the input and output (codomain) interval of the map. The k coefficient is the one specified by the context. Note that LINEAR is a special case of polynomial (k = 1). We keep the LINEAR constant for some UI reason but we apply the same algorithm.

See Also:

Constant Field Values

NOISE_REDUCTION

public static final boolean NOISE_REDUCTION

Default value.

See Also:

Constant Field Values

Constructor Detail

QuantumFactory

public QuantumFactory(List<Family> families)

Default constructor.

Parameters:

families - the enumerated list of all families.

Method Detail

getFamily

public Family getFamily(String value)

Helper method to retrieve a Family enumeration from the database.

Parameters:

value - The enumeration value.

Returns:

A family enumeration object.

getStrategy

public QuantumStrategy getStrategy(QuantumDef qd,
                          Pixels pixels)

Returns a strategy to carry out the quantization process whose context is defined by pd.

Parameters:

qd - Defines the quantization context. Mustn't be null and its values must have been properly specified.

pixels - The pixels to handle.

Returns:

A QuantumStrategy suitable for the specified context.