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JPEG 2000 Image Format

Description

The JPEG 2000 Image Format provides a QImageIOHandler plugin for reading and writing JPEG 2000 files.

This QImageIOHandler plugin adds support for the JPEG 2000 image file format to Qt. Currently, it is only availabe as a dynamically loaded plugin. We have plans to add support for statically linked plugins later. JPEG 2000 is designed to produce better compression and less quality loss than ordinary JPEG. QtJp2ImageHandler uses the free, Open Source codec JasPer, which is an official reference implementation of the JPEG 2000 Part-1 codec standard.

Classes

• QtJP2ImageHandler
• QJPeg2Plugin

Examples

• Using the QPixmap API to load JPEG 2000 images

Tested platforms

• Qt 4.4, 4.5 / Windows XP / MSVC.NET 2005
• Qt 4.4, 4.5 / Linux / gcc
• Qt 4.4, 4.5 / MacOS X 10.5 / gcc

Unsupported platforms

• Does not work with Jasper 1.900.0