[QGIS-trac] Re: [Quantum GIS] #996: Re: [Quantum GIS] #996: QGIS corrupts JPEG2000 colors

[Quantum GIS]

#996: Re: [Quantum GIS] #996: QGIS corrupts JPEG2000 colors
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        Reporter:  coatman                           |         Owner:  nobody       
            Type:  defect                            |        Status:  reopened     
        Priority:  major: does not work as expected  |     Milestone:  Version 1.0.1
       Component:  Rasters                           |       Version:  HEAD         
      Resolution:                                    |      Keywords:  kakadu raster
Platform_version:                                    |      Platform:  OS X         
        Must_fix:  No                                |   Status_info:  0            
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Comment (by Coatman):

 < As I have noted in previous posts, displaying JPEG2000 images in QGIS on
 Ubuntu versions <= 8.04 (with jasper) work just fine, while other
 platforms it did not. As of Ubuntu 8.10 that is not longer the case. So
 now, the JPEG2000 display errors are present on all platforms, but is not
 specific to QGIS ( you will also experience these display issues in
 FWTools [compiled with kakadu] or with gdal_translate [native 8.10
 compiled with jasper]). Thus the problem has to do with, or a combination
 of, libjpeg, jasper and/or kakadu, and GDAL. >

 I take this as good news, because we can conclude that the present
 inability of QGIS to properly display JPEG2000 images has nothing to do
 with Mac OS X, and nothing to do with Kakadu.  So it could be fixed in
 another Unix environment, like Ubuntu, and then it may again work with Mac
 OS X and Kakadu.  Again, please remember that QGIS initially properly
 displayed JP2 images with Jasper and Kakadu.  libjpeg is not involved in
 any way with JP2 images.  Jasper has not changed in years.  I can use with
 QGIS the same version of Kakadu, as when QGIS properly displayed JP2
 images.  So, the source of the problem is in a part of some code that
 *changed*, and that handles reading in JP2 images.  Is Subversion, or
 something like it, available to point to these code changes?

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/996#comment:30>
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