JPEG 2000 Image Format
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.
Documentation:
Classes: Examples:Tested on:
- 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
Download Commercial Edition:
Only available for Qt Solutions license holders with a valid Support and Maintenance agreement (authentication required).Download Open Source Edition (LGPL):
Changes:
- 2.4: Build fix.
- 2.3: LGPL release.
- 2.3: Misc. minor fixes.
- 2.2: Updated to latest Jasper version: 1.900.1.
- 2.2: Various build and documentation issues fixed.
- 2.1: QImageReader::imageFormat() now returns the correct format string.
- 2.0: Latest version ported to Qt 4.0
