Add in check that imread exists. This is part of octave-forge rather than the standard octave package so is not guaranteed to be available.
Add in check that imread exists. This is part of octave-forge rather than the standard octave package so is not guaranteed to be available.


svn path=/trunk/; revision=11446

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot