[jaunty] ImageMagick fails to read JPEG 2000 images created by it in the past

[Edward]

Binary package hint: imagemagick

I have some JP2 files created using the ImageMagick 'convert' utility on an up-to-date 64 bit Intrepid system on 2008-11-18. At the time ImageMagick was able to convert those files back to other formats. Now, on the same system upgraded to Jaunty, convert fails with the following message:

error: cannot decode code stream
convert: unable to decode image file `foo.jp2' @ coders/jp2.c/ReadJP2Image/384.
convert: missing an image filename `bar.tiff' @ wand/convert.c/ConvertImageCommand/2710.

The libjasper-runtime tools also fail to read the image, though it is possible to retrieve them using the openjpeg-tools utility 'j2k_to_image'.

Upon further investigation it appears that right now openjpeg is creating JP2 files that are unreadable by jasper (and perhaps at the time I created the files, ImageMagick was using openjpeg and now uses jasper).

[broucaries (roucaries-bastien+bugs)]

Could you post an exemple of old jpeg2000 file?

[Edward (edward-coffey)]

Here's the smallest of my old files that demonstrates the issue. It was created with an earlier version of the ImageMagick convert utility in Ubuntu, and can no-longer be read by the current version. The j2k_to_image utility decompresses it without error.

[broucaries (roucaries-bastien+bugs)]

Work for me