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See:
Description
| Class Summary | |
|---|---|
| DOMtoIIOMetadata | This class converts a Document (DOM) object into an
IIOMetadata tree This will be called from inside a reader, writer, transcoder or display program. |
| DOMtoPDSlabel | This class creates a text label for a PDS image file This will be called from inside a writer. |
| DOMtoXercesDocument | This class converts a Document (DOM) object into a
org.apache.xerces.dom.DocumentImpl() Document This allows the Document to be processed by apache's xerces processors. |
| FITSImageReader | This class is an ImageReader
for reading image files in the Vicar format. |
| FITSImageReaderSpi | |
| FITSMetadata | |
| IIOMetadataToDOM | This class builds a DOM Document from an IIOMetadata
object. This will be called from inside a reader, writer or transcoder. |
| ImageToDOM | This class builds a DOM Document from a rendered image
The System label type information is extracted from a RenderedImage. |
| ImageToPDS_DOM | This class builds a DOM Document from a rendered image
The System label type information is extracted from a RenderedImage. |
| ISISImageReader | This class is an ImageReader
for reading image files in the Vicar format. |
| ISISImageReaderSpi | |
| ISISLabelToDOM | Parses a ISIS image label and creates a Document Object with the values. |
| ISISMetadata | |
| PDSImageReader | This class is an ImageReader
for reading image files in the Vicar format. |
| PDSImageReaderSpi | |
| PDSimageStatistics | |
| PDSImageToDOM | This class builds a DOM Document from a rendered image
The System label type information is extracted from a RenderedImage. |
| PDSImageWriteParam | PDSImageWriteParam |
| PDSImageWriter | |
| PDSImageWriterSpi | |
| PDSLabelToDOM | Parses a ISIS image label and creates a Document Object with the values. |
| PDSMetadata | |
| PDSToVicarImageTranscoder | |
| PDSToVicarImageTranscoderSpi | |
| RegisterScaleMultiresOpImage | |
| RenderedImageToDOM | This class builds a DOM Document from a rendered image
The System label type information is extracted from a RenderedImage. |
| ScaleMultiresCRIF | |
| ScaleMultiresDescriptor | An OperationDescriptor describing the "Scale" operation. |
| ScaleMultiresOpImage | |
| VicarIIOMetadataNode | |
| VicarImageReader | This class is an ImageReader
for reading image files in the Vicar format. |
| VicarImageReaderSpi | |
| VicarImageWriter | |
| VicarImageWriterSpi | |
| VicarLabelToDOM | This class builds a DOM Document from a vicar image
label object. A later version MAY handle reading a String which contains the label contents and parses that text. |
| VicarLabelToIIOMetadata | This class builds a IIOMetadata from a vicar image
label object. A later version MAY handle reading a String which contains the label contents and parses that text. |
| VicarMetadata | |
| VicarRenderedImage | This class is used to allow a RenderedImage to be returned by ImageReader.getAsRenderedImage(). |
| VicarToPDSImageTranscoder | |
| VicarToPDSImageTranscoderSpi | |
VICAR Image I/O package. This package supplies plugins for reading and
writing
images using the ImageIO package which is part of the standard
Java
system JDK1.4 and higher. The plugins are automatically registered. The
plugins
are independent of JAI. A RenderedImage is returned from a reader. A
RenderedImage
from any source may be given to a writer.
SUN supplies some standard Readers and Writers. Some of them are
curretnly
supplied as a part of the standard JDK package (jpg, png, gif). A few
others
will be supplied with the JAI package. Tiff, pnm, bmp are planned..
This package supplies plugins for some image formats not supported by
the
standard or JAI plugin set.
Currently Readers and Writers for Vicar and PDS images are included.
The plugins use the vicar I/O classes to perform low level file access.
The ImageIO package adds support for image metadata. Vicar and PDS
labels
are the metadata source.
A Transcoder layer allows the conversion of metadata from one format to
the
form understood by a different format. A specific transcoder must be
written
to handle transcoding metadata from one specific format to another.
The current package contains a Vicar to PDS transcoder.
The Transcoder use an XSL script to control the conversion processing.
In the simplest form the following code can be used to read in an image
file
and write it out as jpeg image file. ImageIO will ask each registered
plugin
if it can read the file. If one of the plugins says "Yes" it will be
asked
to open the file and return the RenderedImage. A RenderedImage can then
be
used by a program to display the image or it can be used to obtain the
data
contained in the image file. In the example below the RenderedImage is
supplied
to the writer. There must be a writer available for the requested
format.
String input_file = "mer_edr.vic";
String output_format = "jpg";
String output_file = mer_edr.jpg";
RenderedImage image image = ImageIO.read(new File(input_file));
ImageIO.write(image, output_format, output_file);
Currently Input, Output and Transcoding are supported.
In-place Update of files is not.
The package's major features are:
While direct access to VICAR and PDS files via this API is possible,
it
is recommended that the higher-level "plugin" from the jpl.mipl.io.plugins
package be used instead. This plugin is automatically registered . The
plugin supports tiling and access to the VICAR or PDS metadata.
Information on the mid- and low-level interfaces can be found in the
javadoc
for the VicarInput and VicarOutput
interfaces.
To write a vicar format image file the format String should be
"vicar".
To write a vicar format image file the format String should be "pds".
Eventually JAI codec's will be deprecated.
Added functionality 4-2003
An ISIS (USGS Flagstaff) image reader has been added.
Vicar, PDS and ISIS readers can now return a RenderedImage. Previously
the returned image was actually
a BufferedImage. A BufferedImage is displayable since it includes a
ColorModel. If the Jade display component is used a RenderedImage may
be used and the Jade component will add a suitable
ColorModel.
Requesting a RenderedImage has 2 valuable uses.
1). A RenderedImage can contain more than 3 bands. 3 bands must be
selected from these to create something
which can be displayed.
2). A RenderedImage doesn't pull data until it is requested thus saving
some overhead when a subset of the image is all that is required, such
as in a display of a large image using the Jade component.
Added 5-26-2005
A FITS reader has been added. It uses the nom.tam.fits libraries
written by Thomas McGlynn of Goddard.
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