@r-p-h said in OpenCV 4.1.1 Imread() & Imwrite() Crashes Program ?: now everything is working fine. so please don't forget to mark your post as solved! Thanks.

Problem is solved thanks to user berak at OpenCV forum. For other users who can have this problem solution is as follows: some modules have changed in 3.0. to use imread()/imwrite, add: LIBS += "E:\OpenCV\release\lib\libopencv_imgcodecs300.dll.a" Regards