Hello, I'm in trouble using dynamic images into a template class. I have an abstract class Filter of this form: template <typename TView1, typename TView2> class Filter { public: virtual ~Filter(); virtual void setParameter(uint8 id, float16 value); virtual void apply(const any_image_view<TView1>& source, const any_image_view<TView2>& destination) = 0; protected: Filter(); }; which is subclassed by other concrete classes like this one: template <typename TView1, typename TView2> class BlurGaussSelective : public Filter<TView1,TView2> { public: BlurGaussSelective(); virtual ~BlurGaussSelective(); void setParameter(uint8 id, float16 value); void apply(const any_image_view<TView1>& source, const any_image_view<TView2>& destination); }; As you can see I need to use a template class because the "apply" method (where concrete filters implements own logic) is virtual. But when I instantiate a BlurGaussSelective object I don't know which template types pass to it. I tried this: typedef vector<rgb8_image_t,gray8_image_t> ImageType; typedef vector<rgb8_view_t,gray8_view_t> ViewType; any_image<ImageType> source; any_image<ImageType> dest; jpeg_read_image("input.jpg", source); jpeg_read_image("input.jpg", dest); BlurGaussSelective<ViewType,ViewType> filter; filter.apply(const_view(source),const_view(dest)); But the compiler gives me this error: ../src/RotoscoperApplication.cpp: In member function ‘void Rotoscoper::Application::rotoscope()’: ../src/RotoscoperApplication.cpp:73: error: no matching function for call to ‘Rotoscoper::BlurGaussSelective<boost::mpl::vector<boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<boost::gil::rgb8_pixel_t*> > >, boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<boost::gil::gray8_pixel_t*> > >, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::vector<boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<boost::gil::rgb8_pixel_t*> > >, boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<boost::gil::gray8_pixel_t*> > >, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na> >::apply(boost::gil::any_image_view<boost::mpl::v_item<boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<const boost::gil::gray8c_pixel_t*> > >, boost::mpl::v_item<boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<const boost::gil::rgb8c_pixel_t*> > >, boost::mpl::vector0<mpl_::na>, 0>, 0> >, boost::gil::any_image_view<boost::mpl::v_item<boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<const boost::gil::gray8c_pixel_t*> > >, boost::mpl::v_item<boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<const boost::gil::rgb8c_pixel_t*> > >, boost::mpl::vector0<mpl_::na>, 0>, 0> >)’ ../src/RotoscoperBlurGaussSelective.hpp:119: note: candidates are: void Rotoscoper::BlurGaussSelective<TImage1, TImage2>::apply(const boost::gil::any_image_view<IVTypes>&, const boost::gil::any_image_view<Types2>&) [with TImage1 = boost::mpl::vector<boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<boost::gil::rgb8_pixel_t*> > >, boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<boost::gil::gray8_pixel_t*> > >, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, TImage2 = boost::mpl::vector<boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<boost::gil::rgb8_pixel_t*> > >, boost::gil::image_view<boost::gil::memory_based_2d_locator<boost::gil::memory_based_step_iterator<boost::gil::gray8_pixel_t*> > >, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>] make: *** [src/RotoscoperApplication.o] Error 1 Which template type I should use when I instantiate the BlurGaussSelectiveClass? Thanks in advance. Greetings, Raffaele -- View this message in context: http://www.nabble.com/Template-class-and-any_image_view-tp25891719p25891719.... Sent from the Boost - Users mailing list archive at Nabble.com.