I tried it on macos 10.10 and ı get this error ? thanks Traceback (most recent call last): File "newfaces.py", line 47, in [X,y] = read_images(sys.argv[1], (256,256)) File "newfaces.py", line 31, in read_images im = cv2.resize(im, sz) cv2.error: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_opencv/opencv/work/opencv-2.4.10/modules/imgproc/src/imgwarp.cpp:1968: error: (-215) ssize.area() > 0 in function resize