I have used Image labeler tool to label images (for pixel segmentation). When I generate gTruth file and load it, I only get pixellabeldata which only contains the address of image location. No other inforamtion like which pixel belongs to which object is mentioned in that gTruth file. In that case how I would be able to train my network using this gTruth file? and how can i generate such gTruth file that contains all the required inforamtion that which pixels belongs to Segment A and which belongs to segment B.?