Handle palette images, MINISWHITE photometric mode, 4-bit images.
Handle palette images, MINISWHITE photometric mode, 4-bit images.


git-svn-id: c3edda122e248ef33995da003806c930f62b9468@69 31904243-a364-42ac-a3db-9305396518ba

micler/oiio,jeremyselan/oiio,cwilling/oiio,lgritz/oiio,mcanthony/oiio,OpenImageIO/oiio,sambler/oiio,bdeluca/oiio,scott-wilson/oiio,scott-wilson/oiio,YangYangTL/oiio,OpenImageIO/oiio,cwilling/oiio,mcanthony/oiio,YangYangTL/oiio,scott-wilson/oiio,bdeluca/oiio,YangYangTL/oiio,micler/oiio,lgritz/oiio,YangYangTL/oiio,OpenImageIO/oiio,lgritz/oiio,sambler/oiio,OpenImageIO/oiio,lgritz/oiio,jeremyselan/oiio,sambler/oiio,bdeluca/oiio,mcanthony/oiio,micler/oiio,micler/oiio,scott-wilson/oiio,mcanthony/oiio,cwilling/oiio,sambler/oiio,cwilling/oiio,bdeluca/oiio,jeremyselan/oiio