GetImage method is located in the
CMSAbstractTransformation.Methods class (under the
So you could do:
<%# CMSAbstractTransformation.Methods.GetImage(Eval("NodeAliasPath"), Eval("MenuItemTeaserImage")) %>
Or you could specify a transformation by setting the
TransformationName on the Repeater control, instead of defining an
<ItemTemplate> - that will give you access to transformation methods, as well as the ability to edit transformations in Kentico.