Package net.algart.external.awt

Class MatrixToBufferedImage.MonochromeToIndexed

java.lang.Object

net.algart.external.awt.MatrixToBufferedImage

net.algart.external.awt.MatrixToBufferedImage.InterleavedRGBToInterleaved

net.algart.external.awt.MatrixToBufferedImage.MonochromeToIndexed

Enclosing class:

MatrixToBufferedImage

public static class MatrixToBufferedImage.MonochromeToIndexed
extends MatrixToBufferedImage.InterleavedRGBToInterleaved

Nested Class Summary

Nested classes/interfaces inherited from class net.algart.external.awt.MatrixToBufferedImage

MatrixToBufferedImage.InterleavedBGRToInterleaved, MatrixToBufferedImage.InterleavedRGBToInterleaved, MatrixToBufferedImage.InterleavedToBandedRGB, MatrixToBufferedImage.MonochromeToIndexed

Constructor Summary

Constructors

Constructor	Description
MonochromeToIndexed(double[] baseColor0, double[] baseColor255)
MonochromeToIndexed(Color baseColor0, Color baseColor255)

Method Summary

Modifier and Type	Method	Description
long	colorValue(Matrix<? extends PArray> interleavedMatrix, Color color, int bankIndex)	Converts the color into a form, stored in the data buffer, returned by MatrixToBufferedImage.toDataBuffer(Matrix).
byte[][]	palette()	Returns the palette (byte[4][256]) if the indexed image is supposed.
protected DataBuffer	toDataBuffer(PArray interleavedArray, int bandCount)	Actual method, on which MatrixToBufferedImage.toDataBuffer(Matrix) is based.
String	toString()

Methods inherited from class net.algart.external.awt.MatrixToBufferedImage.InterleavedRGBToInterleaved

isAlwaysAddAlpha, rgbAlphaMasks, setAlwaysAddAlpha

Methods inherited from class net.algart.external.awt.MatrixToBufferedImage

bytesRequired, getBandCount, getDataArray, getHeight, getWidth, isUnsignedInt32, setUnsignedInt32, toBufferedImage, toBufferedImage, toDataBuffer, toDataBufferBand0Filter

Methods inherited from class java.lang.Object

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

Constructor Details

MonochromeToIndexed

public MonochromeToIndexed(Color baseColor0,
 Color baseColor255)

MonochromeToIndexed

public MonochromeToIndexed(double[] baseColor0,
 double[] baseColor255)

Method Details

colorValue

public long colorValue(Matrix<? extends PArray> interleavedMatrix,
 Color color,
 int bankIndex)

Description copied from class: MatrixToBufferedImage

Converts the color into a form, stored in the data buffer, returned by MatrixToBufferedImage.toDataBuffer(Matrix).

The default implementation is suitable for monochrome, indexed and multi-bank data buffers.

Note: if the interleaved matrix is monochrome or indexed, i.e. getBandCount(interleavedMatrix)==1, this method returns

 Math.round(0.3 * color.getRed() + 0.59 * color.getGreen() + 0.11 * color.getBlue())
 

The good idea is to provide identical R, G, B color components in such cases (if this method is not overridden).

Overrides:

colorValue in class MatrixToBufferedImage.InterleavedRGBToInterleaved

Parameters:

interleavedMatrix - the interleaved data.

color - some color.

bankIndex - index of the bank in terms of java.awt.image.DataBuffer.

Returns:

the corresponded component of this color or interleaved RGB-Alpha value, depending on the structure of the data buffer.

palette

public byte[][] palette()

Description copied from class: MatrixToBufferedImage

Returns the palette (byte[4][256]) if the indexed image is supposed.

The default implementation returns null, that means non-indexed image.

Overrides:

palette in class MatrixToBufferedImage

Returns:

the palette or null if the image should be not indexed.

toString

public String toString()

Overrides:

toString in class MatrixToBufferedImage.InterleavedRGBToInterleaved

toDataBuffer

protected DataBuffer toDataBuffer(PArray interleavedArray,
 int bandCount)

Description copied from class: MatrixToBufferedImage

Actual method, on which MatrixToBufferedImage.toDataBuffer(Matrix) is based.

The passed AlgART array must be direct accessible.

Overrides:

toDataBuffer in class MatrixToBufferedImage.InterleavedRGBToInterleaved

Parameters:

interleavedArray - the interleaved data.

bandCount - the number of bands: if called from MatrixToBufferedImage.toDataBuffer(Matrix), it is 1 for 2-dimensional matrix and dim(0) for 3-dimensional matrix.

Returns:

the newly allocated DataBuffer with the same data.