ImageMan.Net Version 3 Summer 2012 Release
Jp2Decoder Class
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DTI.ImageMan.Codecs Namespace : Jp2Decoder Class





Glossary Item Box

This class provides support for reading JPEG2000 images.

Object Model

Jp2Decoder Class

Syntax

Visual Basic (Declaration) 
Public Class Jp2Decoder 
   Inherits DecoderBase
Visual Basic (Usage)Copy Code
Dim instance As Jp2Decoder
C# 
public class Jp2Decoder : DecoderBase 
JScript 
public class Jp2Decoder extends DecoderBase
Managed Extensions for C++ 
public __gc class Jp2Decoder : public DecoderBase 
C++/CLI 
public ref class Jp2Decoder : public DecoderBase 

Remarks

The JPEG 2000 specification is a further development on the original JPEG file format. It supports both LOSSY and LOSSLESS compression schemes. It still uses many similar compression concepts including separating the Hue and Brightness to allow for differential compression of Black and White and color data. Many new options have been added including sampling sizes,color spaces, and tiling image information. Tiling allows for quicker access to a small portion of a large image.

The JPEG 2000 specification also includes a image to disk file format as well as information for streaming images. This format has a JP2 extension. We currently support the JP2 file format. We also support the J2C format, although this is not part of the standard. J2C files are simply image stream data written straight to disk without the normal image file headers..

JPEG 2000 also has support for custom color spaces. We do not currently provide support for loading custom color spaces. Our current widely distributed JPEG 2000 implementation is royalty free.

This implementation of the JPEG 2000 standard uses the JasPer Software Library [http://www.ece.uvic.ca/~mdadams/jasper/]. Copyright (c) 1999-2000, Image Power, Inc. and the University of British Columbia, Canada. Copyright (c) 2001-2003 Michael David Adams. All rights reserved.

Inheritance Hierarchy

System.Object
   DTI.ImageMan.ImDecoder
      DTI.ImageMan.Codecs.DecoderBase
         DTI.ImageMan.Codecs.Jp2Decoder

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

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