org.jboss.media.format.image.iio
Class PNGMediaHeader

java.lang.Object
  org.jboss.media.format.image.iio.IIOMediaHeader (src) 
      org.jboss.media.format.image.iio.PNGMediaHeader

All Implemented Interfaces:

MediaHeader (src) , java.io.Serializable

public class PNGMediaHeader

extends IIOMediaHeader (src)

PNG MediaHeader based on the Java Image I/O API.

See Also:

Serialized Form

PNGMediaHeader

public PNGMediaHeader(javax.imageio.metadata.IIOMetadata imageMetadata)

Constructor.

getFieldNames

public java.lang.String[] getFieldNames()

Description copied from interface: MediaHeader (src)

Returns an array of Strings containing all the field names defined for the header.

Specified by:

getFieldNames in interface MediaHeader (src)

Specified by:

getFieldNames in class IIOMediaHeader (src)

See Also:

MediaHeader.getFieldNames()

getField

public java.lang.Object getField(java.lang.String fieldname)

Description copied from interface: MediaHeader (src)

Returns the field with the given name downcast to Object. If the field is modeled as a Java base type, an instance of the corresponding wrapper class has to be returned. The value null is returned if a field name is passed that is not defined for the receiver.

Specified by:

getField in interface MediaHeader (src)

Specified by:

getField in class IIOMediaHeader (src)

See Also:

MediaHeader.getField(java.lang.String)

getWidth

public int getWidth()

The width of the image in pixels.

Returns:

1 (inclusive) to 2147483647 (inclusive).

getHeight

public int getHeight()

The height of the image in pixels.

Returns:

1 (inclusive) to 2147483647 (inclusive).

getBitDepth

public java.lang.String getBitDepth()

The bit depth of the image samples.

Returns:

"1", "2", "4", "8" or "16".

getColorType

public java.lang.String getColorType()

The color type of the image.

Returns:

"Grayscale", "RGB", "Palette", "GrayAlpha" or "RGBAlpha".

getCompressionMethod

public java.lang.String getCompressionMethod()

The compression used for image data.

Returns:

allways "deflate".

getFilterMethod

public java.lang.String getFilterMethod()

The filtering method used for compression.

Returns:

allways "adaptive".

getInterlaceMethod

public java.lang.String getInterlaceMethod()

The interlacing method.

Returns:

"none" or "adam7".

getGamma

public int getGamma()

The image gamma, multiplied by 1e5.

Returns:

0 (inclusive) to 2147483647 (inclusive).

getPixelsPerUnitXAxis

public int getPixelsPerUnitXAxis()

The number of horizontal pixels per unit, multiplied by 1e5.

Returns:

0 (inclusive) to 2147483647 (inclusive).

getPixelsPerUnitYAxis

public int getPixelsPerUnitYAxis()

The number of vertical pixels per unit, multiplied by 1e5.

Returns:

0 (inclusive) to 2147483647 (inclusive).

getPixelsPerUnitSpecifier

public java.lang.String getPixelsPerUnitSpecifier()

The unit specifier for this chunk (i.e., meters).

Returns:

"unknown" or "meter".