kazuaki's profile - activity

can it be, your img is simply empty / not loaded ? please check immediately after imread()

I did it not by my img but by my web camera. In another session, it was successful to load web camera with python+opencv.

Hi berak.

Thank you for replying to me. I do have both opencv and opencv3 which have been installed via homebrew.

But currently, only the former is invalid according to doing brew search.

So how can I alter it to opencv3? I'm totally a beginner...

I just working on the task above as the URL below shows.

http://opencv-python-tutroals.readthe...

But everytime I try, the error massage below emerges.

ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー

OpenCV Error: Assertion failed (size.width>0 && size.height>0) in imshow, file /tmp/opencv-20160915-26910-go28a5/opencv-2.4.13/modules/highgui/src/window.cpp, line 261 Traceback (most recent call last): File "lucaskanade.py", line 47, in <module> cv2.imshow('frame',img) cv2.error: /tmp/opencv-20160915-26910-go28a5/opencv-2.4.13/modules/highgui/src/window.cpp:261: error: (-215) size.width>0 && size.height>0 in function imshow

ーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーーー Could somebody tell me how to solve this problem?

I'm in the task above as the URL below shows.

http://opencv-python-tutroals.readthe...

but everytime I try, the error message below emerges.

OpenCV Error: Assertion failed (size.width>0 && size.height>0) in imshow, file /tmp/opencv-20160915-26910-go28a5/opencv-2.4.13/modules/highgui/src/window.cpp, line 261 Traceback (most recent call last): File "lucaskanade.py", line 47, in <module> cv2.imshow('frame',img) cv2.error: /tmp/opencv-20160915-26910-go28a5/opencv-2.4.13/modules/highgui/src/window.cpp:261: error: (-215) size.width>0 && size.height>0 in function imshow

Could you guys tell me how to solve this problem? I've been working on this problem as much as 3 days.......