MASK_RCNN解读3-原始训练FPN模型加载 现在开始进行网络的训练，脚本为： python tools/train_net.py –config-file configs/my_e2e_mask_rcnn_R_50_FPN_1x.yaml MODEL.ROI_BOX_HEAD.NUM_CLASSES 6 SOLVER.IMS_PER_BATCH 4 SOLVER.BASE_LR 0.001 SOLVER.MAX_ITER 36000 SOLVER.STEPS ” (24000, 32000