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# - Try to find OpenCV library installation
# See http://sourceforge.net/projects/opencvlibrary/
#
# The following variable is optionally searched for defaults
# OPENCV_ROOT_DIR: Base directory of OpenCv tree to use.
#
# OPENCV_NEW_LIBRARY_NAMES Set to YES before searching if you want to
# The following are set after configuration is done:
# OPENCV_FOUND
# OPENCV_INCLUDE_DIRS
# OPENCV_LIBRARIES
#
# 2004/05 Jan Woetzel, Friso, Daniel Grest
# 2006/01 complete rewrite by Jan Woetzel
# 2006/09 2nd rewrite introducing ROOT_DIR and PATH_SUFFIXES
# to handle multiple installed versions gracefully by Jan Woetzel
# 2010/02 Ryan Pavlik (Iowa State University) - partial rewrite to standardize
#
# tested with:
# -OpenCV 0.97 (beta5a): MSVS 7.1, gcc 3.3, gcc 4.1
# -OpenCV 0.99 (1.0rc1): MSVS 7.1
#
# www.mip.informatik.uni-kiel.de/~jw
# academic.cleardefinition.com
# --------------------------------
set(OPENCV_ROOT_DIR
"${OPENCV_ROOT_DIR}"
CACHE
PATH
"Path to search for OpenCV")
find_package(OpenCV QUIET NO_MODULE)
if(OpenCV_LIBS AND NOT OpenCV_LIBRARIES)
set(OPENCV_LIBRARIES ${OpenCV_LIBS})
set(OPENCV_FOUND true)
else()
include(ProgramFilesGlob)
# typical root dirs of installations, exactly one of them is used
program_files_glob(_dirs "/OpenCV*/")
#
# select exactly ONE OPENCV base directory/tree
# to avoid mixing different version headers and libs
#
find_path(OPENCV_BASE_DIR
NAMES
cv/include/cv.h
include/opencv/cv.h
include/cv/cv.h
include/cv.h
HINTS
"${OPENCV_ROOT_DIR}"
"$ENV{OPENCV_ROOT_DIR}"
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Intel(R) Open Source Computer Vision Library_is1;Inno Setup: App Path]"
${_dirs})
# header include dir suffixes appended to OPENCV_BASE_DIR
set(OPENCV_INCDIR_SUFFIXES
include
include/cv
include/opencv
cv/include
cxcore/include
cvaux/include
otherlibs/cvcam/include
otherlibs/highgui
otherlibs/highgui/include
otherlibs/_graphics/include)
# library linkdir suffixes appended to OPENCV_BASE_DIR
set(OPENCV_LIBDIR_SUFFIXES
lib
lib64
OpenCV/lib
otherlibs/_graphics/lib)
#
# find incdir for each lib
#
find_path(OPENCV_cv_INCLUDE_DIR
NAMES
cv.h
HINTS
"${OPENCV_BASE_DIR}"
"${OPENCV_ROOT_DIR}"
PATH_SUFFIXES
${OPENCV_INCDIR_SUFFIXES})
find_path(OPENCV_cxcore_INCLUDE_DIR
NAMES
cxcore.h
HINTS
"${OPENCV_BASE_DIR}"
"${OPENCV_ROOT_DIR}"
PATH_SUFFIXES
${OPENCV_INCDIR_SUFFIXES})
find_path(OPENCV_cxcore_INCLUDE_DIR
NAMES
cvaux.h
HINTS
"${OPENCV_BASE_DIR}"
"${OPENCV_ROOT_DIR}"
PATH_SUFFIXES
${OPENCV_INCDIR_SUFFIXES})
find_path(OPENCV_highgui_INCLUDE_DIR
NAMES
highgui.h
HINTS
"${OPENCV_BASE_DIR}"
"${OPENCV_ROOT_DIR}"
PATH_SUFFIXES
${OPENCV_INCDIR_SUFFIXES})
find_path(OPENCV_cvcam_INCLUDE_DIR
NAMES
cvcam.h
HINTS
"${OPENCV_BASE_DIR}"
"${OPENCV_ROOT_DIR}"
PATH_SUFFIXES
${OPENCV_INCDIR_SUFFIXES})
#
# find sbsolute path to all libraries
# some are optionally, some may not exist on Linux
#
find_library(OPENCV_legacy_LIBRARY
NAMES
opencv_legacy
HINTS
"${OPENCV_BASE_DIR}"
"${OPENCV_ROOT_DIR}"
PATH_SUFFIXES
${OPENCV_LIBDIR_SUFFIXES})
set(OPENCV_NEW_COMPONENTS calib3d contrib core features2d highgui imgproc legacy ml objdetect video)
set(OPENCV_OLD_COMPONENTS cv cvaux cvcam cvhaartraining cxcore cxts highgui ml trs)
set(opencv_components)
if(OPENCV_NEW_LIBRARY_NAMES OR OPENCV_legacy_LIBRARY)
# New-style library names
foreach(component ${OPENCV_NEW_COMPONENTS})
find_library(OPENCV_${component}_LIBRARY
NAMES
opencv_${component}
HINTS
${OPENCV_BASE_DIR}
PATH_SUFFIXES
${OPENCV_LIBDIR_SUFFIXES})
endforeach()
# cv components with header and library if COMPONENTS unspecified
if(NOT OpenCV_FIND_COMPONENTS)
# default
set(opencv_components core legacy imgproc highgui)
if(WIN32)
list(APPEND opencv_components video) # WIN32 only actually
endif()
else()
# TODO: clean up/convert to new components
string(TOLOWER "${OpenCV_FIND_COMPONENTS}" opencv_components)
endif()
else()
# Old-style lib names
if(NOT OpenCV_FIND_COMPONENTS)
# default
set(opencv_components cv cxcore cvaux highgui)
if(WIN32)
list(APPEND opencv_components cvcam) # WIN32 only actually
endif()
else()
string(TOLOWER "${OpenCV_FIND_COMPONENTS}" opencv_components)
endif()
foreach(component ${OPENCV_OLD_COMPONENTS})
find_library(OPENCV_${component}_LIBRARY
NAMES
${component}
HINTS
${OPENCV_BASE_DIR}
PATH_SUFFIXES
${OPENCV_LIBDIR_SUFFIXES})
endforeach()
endif()
#
# Logic selecting required libs and headers
#
set(_req_check)
set(_req_libs)
set(_req_includes)
foreach(component ${opencv_components})
#message(STATUS "Component requested: ${component}")
# only good if header and library both found
list(APPEND
_req_check
OPENCV_${component}_LIBRARY)
list(APPEND _req_libs "${OPENCV_${component}_LIBRARY}")
if(DEFINED OPENCV_${component}_INCLUDE_DIR)
list(APPEND
_req_check
OPENCV_${component}_INCLUDE_DIR)
list(APPEND _req_includes "${OPENCV_${component}_INCLUDE_DIR}")
endif()
endforeach()
# handle the QUIETLY and REQUIRED arguments and set xxx_FOUND to TRUE if
# all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(OpenCV
DEFAULT_MSG
OPENCV_cv_INCLUDE_DIR
${_req_check})
if(OPENCV_FOUND)
set(OPENCV_LIBRARY_DIRS)
foreach(lib ${_req_libs})
get_filename_component(dir "${lib}" PATH)
list(APPEND OPENCV_LIBRARY_DIRS "${dir}")
endforeach()
list(REVERSE OPENCV_LIBRARY_DIRS)
list(REMOVE_DUPLICATES OPENCV_LIBRARY_DIRS)
list(REVERSE OPENCV_LIBRARY_DIRS)
set(OPENCV_INCLUDE_DIRS ${_req_includes})
set(OPENCV_LIBRARIES ${_req_libs})
mark_as_advanced(OPENCV_ROOT_DIR OpenCV_DIR)
endif()
mark_as_advanced(OPENCV_BASE_DIR)
foreach(component ${OPENCV_NEW_COMPONENTS} ${OPENCV_OLD_COMPONENTS})
mark_as_advanced(OPENCV_${component}_LIBRARY OPENCV_${component}_INCLUDE_DIR)
endforeach()
endif()
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