com.itextpdf.pdfoptimizer.handlers.util.pixel

Class CmykToRgbColorConverter

java.lang.Object

com.itextpdf.pdfoptimizer.handlers.util.pixel.CmykToRgbColorConverter

All Implemented Interfaces:

ColorConverter

public final class CmykToRgbColorConverter
extends Object
implements ColorConverter

Class representing logic for converting cmyk color to rgb color. It implements singleton pattern therefore the instance can be accessed via RgbToCmykColorConverter.getInstance() call.

Method Summary

Modifier and Type	Method and Description
double[]	convertColor(double[] cmykComponents) Performs a conversion of the provided array representing cmyk color components to the array representing rgb color component.
static CmykToRgbColorConverter	getInstance() Returns an instance of cmyk to rgb converter.
com.itextpdf.kernel.pdf.PdfName	getSourceColorspace() Returns original color space of the color.
int	getSourceNumberOfComponents() Return number of components representing the original color space.
com.itextpdf.kernel.pdf.PdfName	getTargetColorspace() Returns target color space of the color.
int	getTargetNumberOfComponents() Return number of components representing the target color space.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static CmykToRgbColorConverter getInstance()

Returns an instance of cmyk to rgb converter.

Returns:

the instance

convertColor

public double[] convertColor(double[] cmykComponents)

Performs a conversion of the provided array representing cmyk color components to the array representing rgb color component. It is expected that the array passed as an argument contains four components and each is a double value from the range [0., 1.]. The values are considered as cyan, magenta, yellow and black components respectively. The returned value should be an array with length 3 where each component is a double value from the range [0., 1.]. The values should be considered as intensity of red, green and blue color components respectively.

Note that no validation of the values is done for the better performance. When invalid argument is passed method may return invalid array of even throw runtime exception.

Specified by:

convertColor in interface ColorConverter

Parameters:

cmykComponents - is an array representing cyan, magenta, yellow and black as double values from the range [0., 1.]. Validation is not performed

Returns:

an array representing red, green and blue components as double values from the range [0., 1.]. If the passed argument is not in expected format then returned value may be unpredictable.

getSourceColorspace

public com.itextpdf.kernel.pdf.PdfName getSourceColorspace()

Description copied from interface: ColorConverter

Returns original color space of the color.

Specified by:

getSourceColorspace in interface ColorConverter

Returns:

original color space

getSourceNumberOfComponents

public int getSourceNumberOfComponents()

Description copied from interface: ColorConverter

Return number of components representing the original color space.

Specified by:

getSourceNumberOfComponents in interface ColorConverter

Returns:

number of components of the original color space

getTargetColorspace

public com.itextpdf.kernel.pdf.PdfName getTargetColorspace()

Description copied from interface: ColorConverter

Returns target color space of the color.

Specified by:

getTargetColorspace in interface ColorConverter

Returns:

target color space

getTargetNumberOfComponents

public int getTargetNumberOfComponents()

Description copied from interface: ColorConverter

Return number of components representing the target color space.

Specified by:

getTargetNumberOfComponents in interface ColorConverter

Returns:

number of components of the target color space