find_package error while installing iai_photo

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I am trying to install iai_photo package. I have already installed gphoto2 and libgphoto2 libraries and got it working with a sony camera.

Further I git cloned the iai_photo package and tried to catkin_make it. But I get the following error

CMake Error at iai_photo-master/CMakeLists.txt:17 (find_package): By not providing "FindGPHOTO2.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "GPHOTO2", but CMake did not find one.

Could not find a package configuration file provided by "GPHOTO2" with any of the following names:

GPHOTO2Config.cmake
gphoto2-config.cmake

Add the installation prefix of "GPHOTO2" to CMAKE_PREFIX_PATH or set "GPHOTO2_DIR" to a directory containing one of the above files. If "GPHOTO2" provides a separate development package or SDK, be sure it has been installed.