Removed OpenCV and boost::filesystem dependency from utils

scm-to-cereal is the only util and it now only requires boost::program_options.

utils/CMakeLists.txt

@@ -1,31 +1,17 @@
-# The utils need a few additional dependencies (e.g. boost::split, boost filesystem, program_options, and OpenCV highgui):
-
-# Check installed version in order to include the correct OpenCV libraries:
-# First call find_package without a version to find any OpenCV. OpenCV_VERSION_MAJOR is then defined.
-find_package(OpenCV REQUIRED core)
-if("${OpenCV_VERSION_MAJOR}$" EQUAL 2)
-  message(STATUS "OpenCV 2.x detected")
-  find_package(OpenCV 2.4.3 REQUIRED core imgproc highgui)
-elseif("${OpenCV_VERSION_MAJOR}$" EQUAL 3)
-  message(STATUS "OpenCV 3.x detected - including imgcodecs for compatibility")
-  find_package(OpenCV 3 REQUIRED core imgproc imgcodecs)
-endif()
-# This allows us to compile in RelWithDebInfo. It'll use the Release-version of OpenCV:
-set_target_properties(${OpenCV_LIBS} PROPERTIES MAP_IMPORTED_CONFIG_RELWITHDEBINFO RELEASE)
-
+# scm-to-cereal needs boost::program_options:
 if(MSVC)
   # The standard find_package for boost on Win finds the dynamic libs, so for dynamic linking to boost we need to #define:
   add_definitions(-DBOOST_ALL_NO_LIB) # Don't use the automatic library linking by boost with VS (#pragma ...). Instead, we specify everything here in cmake.
   add_definitions(-DBOOST_ALL_DYN_LINK) # Link against the dynamic boost lib - needs to match with the version that find_package finds.
   add_definitions(-D_HAS_AUTO_PTR_ETC) # Boost 1.65.1 still does not work with VS C++17 mode, this is the workaround
 endif()
-find_package(Boost 1.50.0 COMPONENTS system filesystem program_options REQUIRED)
+find_package(Boost 1.50.0 COMPONENTS system program_options REQUIRED)
 message(STATUS "Boost found at ${Boost_INCLUDE_DIRS}")
 
 # Converts a CVSSP .scm Morphable Model to a cereal binary file:
 add_executable(scm-to-cereal scm-to-cereal.cpp)
-target_link_libraries(scm-to-cereal eos ${OpenCV_LIBS} ${Boost_LIBRARIES})
-target_include_directories(scm-to-cereal PUBLIC ${OpenCV_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
+target_link_libraries(scm-to-cereal eos ${Boost_LIBRARIES})
+target_include_directories(scm-to-cereal PUBLIC ${Boost_INCLUDE_DIRS})
 
 # Install targets:
 install(TARGETS scm-to-cereal DESTINATION bin)