Can't read .ppm image with stock Ubuntu 10.10 and 11.04
Created by: laurentes
With the stock installation of Ubuntu 10.10 and 11.04, loading ppm images inside bob is failing. This is caused by a change in the behaviour of the ImageMagick library, which interprets ppm images as color images, instead of grayscale. This might be one of the possible explanation of why canonical did a downgrade to ImageMagick 6.6.0.4-3 in Ubuntu 11.10.
Stock imagemagick versions of several Ubuntu releases:
- Ubuntu 10.04LTS -> ImageMagick 6.5.7.8-1
- Ubuntu 10.10 -> ImageMagick 6.6.2.6-1
- Ubuntu 11.04 -> ImageMagick 6.6.2.6-1
- Ubuntu 11.10 -> ImageMagick 6.6.0.4-3
This currently makes the following tests failing, as they use .ppm image files:
- cxx-io-image_codec
- cxx-ip-rotate
- python-ip-histo-main