Issues while running slic.cpp opencv_contrib

Have anyone used the file(SLIC.cpp) from opencv-contrib github.

https://github.com/opencv/opencv_contrib/blob/master/modules/ximgproc/samples/slic.cpp

it is giving the following error to me :

0xC0000005: Access violation reading location 0x00000000.

did anyone passed image to it? if yes , please help with how you did that. i am using visual studio 15.