OpenCV Error: Assertion failed (src.cols > 0 && src.rows > 0) in warpPerspective

[niudong1001]

Hello @asolis , when i run ./detection3D, i got those error:

Training 1 / 8
OpenCV Error: Assertion failed (src.cols > 0 && src.rows > 0) in warpPerspective, file /tmp/opencv@2-20180227-49972-1kzhlrg/opencv-2.4.13.6/modules/imgproc/src/imgwarp.cpp, line 3832
libc++abi.dylib: terminating with uncaught exception of type cv::Exception: /tmp/opencv@2-20180227-49972-1kzhlrg/opencv-2.4.13.6/modules/imgproc/src/imgwarp.cpp:3832: error: (-215) src.cols > 0 && src.rows > 0 in function warpPerspective

[1]    46167 abort      ./detection3D

Hope to find a solution~

[niudong1001]

I solved this problem by using absolute path images.push_back(baseUrl+"/bottle/01.jpeg"); rather than images.push_back("toy/01.jpg");