2014-12-03 18:52:21 -0600 | asked a question | imshow() "speed upping" cap >> img; Hello guys, here is the strange stuff i found, calling imshow() and waitKey() functions after a cap >> img; in a loop can speedup the grabbing by halving the time (in my webcam from ~80ms to 40~ms), can someone explain my what's going on? There is a way for having a "fast" grabbing without the imshow()? Here's the code snippet (need C++11 and #include <chrono>): |