Bump opencv-python from 3.4.1.15 to 3.4.7.28 in /PyTorch/Segmentation/MaskRCNN/pytorch#4

dependabot[bot] wants to merge 1 commit intomasterNVIDIA-Korea/deeplearningexamples:masterfrom

dependabot/pip/PyTorch/Segmentation/MaskRCNN/pytorch/opencv-python-3.4.7.28NVIDIA-Korea/deeplearningexamples:dependabot/pip/PyTorch/Segmentation/MaskRCNN/pytorch/opencv-python-3.4.7.28Copy head branch name to clipboard