How to use C++ get Mask RCNN inference point data

[ricklina90]

Hello
I'm using caffe2_tracing to generate a test model from Model Zoo Mask R-CNN, and then using C++ to inference . This code https://github.com/facebookresearch/detectron2/blob/master/tools/deploy/torchscript_traced_mask_rcnn.cpp can do inference easily. How to use C++ to get point data from pred_masks ? I'm looking for advice. Thank you.
Rick