My perl application depends from perlmagick package.
I have included perlmagick to stage-packages in my snapcraft.yaml.
But I can not provide any read operations from installed perl module.
I can use ls command from perl script and see files.
I can use perl’s open operator to read these files.
I can not open them by Image::Magick’s Read method. 
It returns 0 opened files.
I think, this is security police restriction.
I try to read files directly from $SNAP, $HOME_SNAP_COMMON, $HOME folders, but did not get results.
I try to use command convert -list format from script and can see no supported image formats. Looks like installed libraries are not allowed.
When I try to use Imager::Resize module - it works.
But I need use Image::Magick module in my app.
I have add all possible apps plugs, it does not help.
How I can resolve this?