ColorSpace.Rgb.TransferParameters
public
static
class
ColorSpace.Rgb.TransferParameters
extends Object
java.lang.Object  
↳  android.graphics.ColorSpace.Rgb.TransferParameters 
Defines the parameters for the ICC parametric curve type 4, as defined in ICC.1:200410, section 10.15.
The EOTF is of the form:
\(\begin{equation} Y = \begin{cases}c X + f & X \lt d \\ * \left( a X + b \right) ^{g} + e & X \ge d \end{cases} \end{equation}\)The corresponding OETF is simply the inverse function.
The parameters defined by this class form a valid transfer function only if all the following conditions are met:
 No parameter is a
NotaNumber
 \(d\) is in the range \([0..1]\)
 The function is not constant
 The function is positive and increasing
Summary
Fields  

public
final
double 
a
Variable \(a\) in the equation of the EOTF described above. 
public
final
double 
b
Variable \(b\) in the equation of the EOTF described above. 
public
final
double 
c
Variable \(c\) in the equation of the EOTF described above. 
public
final
double 
d
Variable \(d\) in the equation of the EOTF described above. 
public
final
double 
e
Variable \(e\) in the equation of the EOTF described above. 
public
final
double 
f
Variable \(f\) in the equation of the EOTF described above. 
public
final
double 
g
Variable \(g\) in the equation of the EOTF described above. 
Public constructors  

ColorSpace.Rgb.TransferParameters(double a, double b, double c, double d, double g)
Defines the parameters for the ICC parametric curve type 3, as defined in ICC.1:200410, section 10.15. 

ColorSpace.Rgb.TransferParameters(double a, double b, double c, double d, double e, double f, double g)
Defines the parameters for the ICC parametric curve type 4, as defined in ICC.1:200410, section 10.15. 
Public methods  

boolean

equals(Object o)
Indicates whether some other object is "equal to" this one. 
int

hashCode()
Returns a hash code value for the object. 
Inherited methods  

Fields
Public constructors
ColorSpace.Rgb.TransferParameters
ColorSpace.Rgb.TransferParameters (double a, double b, double c, double d, double g)
Defines the parameters for the ICC parametric curve type 3, as defined in ICC.1:200410, section 10.15.
The EOTF is of the form:
\(\begin{equation} Y = \begin{cases}c X & X \lt d \\ * \left( a X + b \right) ^{g} & X \ge d \end{cases} \end{equation}\)This constructor is equivalent to setting \(e\) and \(f\) to 0.
Parameters  

a 
double : The value of \(a\) in the equation of the EOTF described above 
b 
double : The value of \(b\) in the equation of the EOTF described above 
c 
double : The value of \(c\) in the equation of the EOTF described above 
d 
double : The value of \(d\) in the equation of the EOTF described above 
g 
double : The value of \(g\) in the equation of the EOTF described above 
Throws  

IllegalArgumentException 
If the parameters form an invalid transfer function 
ColorSpace.Rgb.TransferParameters
ColorSpace.Rgb.TransferParameters (double a, double b, double c, double d, double e, double f, double g)
Defines the parameters for the ICC parametric curve type 4, as defined in ICC.1:200410, section 10.15.
Parameters  

a 
double : The value of \(a\) in the equation of the EOTF described above 
b 
double : The value of \(b\) in the equation of the EOTF described above 
c 
double : The value of \(c\) in the equation of the EOTF described above 
d 
double : The value of \(d\) in the equation of the EOTF described above 
e 
double : The value of \(e\) in the equation of the EOTF described above 
f 
double : The value of \(f\) in the equation of the EOTF described above 
g 
double : The value of \(g\) in the equation of the EOTF described above 
Throws  

IllegalArgumentException 
If the parameters form an invalid transfer function 
Public methods
equals
boolean equals (Object o)
Indicates whether some other object is "equal to" this one.
The equals
method implements an equivalence relation
on nonnull object references:
 It is reflexive: for any nonnull reference value
x
,x.equals(x)
should returntrue
.  It is symmetric: for any nonnull reference values
x
andy
,x.equals(y)
should returntrue
if and only ify.equals(x)
returnstrue
.  It is transitive: for any nonnull reference values
x
,y
, andz
, ifx.equals(y)
returnstrue
andy.equals(z)
returnstrue
, thenx.equals(z)
should returntrue
.  It is consistent: for any nonnull reference values
x
andy
, multiple invocations ofx.equals(y)
consistently returntrue
or consistently returnfalse
, provided no information used inequals
comparisons on the objects is modified.  For any nonnull reference value
x
,x.equals(null)
should returnfalse
.
The equals
method for class Object
implements
the most discriminating possible equivalence relation on objects;
that is, for any nonnull reference values x
and
y
, this method returns true
if and only
if x
and y
refer to the same object
(x == y
has the value true
).
Note that it is generally necessary to override the hashCode
method whenever this method is overridden, so as to maintain the
general contract for the hashCode
method, which states
that equal objects must have equal hash codes.
Parameters  

o 
Object : the reference object with which to compare. 
Returns  

boolean 
true if this object is the same as the obj
argument; false otherwise. 
hashCode
int hashCode ()
Returns a hash code value for the object. This method is
supported for the benefit of hash tables such as those provided by
HashMap
.
The general contract of hashCode
is:
 Whenever it is invoked on the same object more than once during
an execution of a Java application, the
hashCode
method must consistently return the same integer, provided no information used inequals
comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.  If two objects are equal according to the
equals(Object)
method, then calling thehashCode
method on each of the two objects must produce the same integer result.  It is not required that if two objects are unequal
according to the
equals(java.lang.Object)
method, then calling thehashCode
method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
As much as is reasonably practical, the hashCode method defined by
class Object
does return distinct integers for distinct
objects. (This is typically implemented by converting the internal
address of the object into an integer, but this implementation
technique is not required by the
Java™ programming language.)
Returns  

int 
a hash code value for this object. 